Down4Sound Subwoofers

Description Warranty Information 12 Reviews Description Team D4S PROFAB Dual 10" Ported Subwoofer Enclosure: Our goal with the TEAM Down4sound Prefab enclosures is to offer an excellent, low tuned enclosure at an affordable price. When searching the internet at all the cheap options available, it was pretty disheartening to see people wasting their hard earned money on such garbage enclosures. Most of which are built of very flimsy material, tuned very high, and either not covered or covered with some cheap fabric (because this makes them more affordable to build). I decided to offer a STRONG & LOW TUNED enclosure that all the true bassheads would love. The D4S PROFAB features that deep rich bass that is found in the lower 32hz range. We weren't looking to be the cheapest option, but the most affordable option will still give you that deep bass. The D4S ProFab Ported Sub Enclosure Features: .75" MDF Subwoofer cutout - 9 1/8" Mounting Depth - 11" 32Hz Tuning Black Bedliner Finish Plastic terminal Cup Plastic Bag Foam Corners Double Wall Shipping Box Good for up to 3000w Rated Power (Any higher power than this and we highly recommend you get one of our custom hand built heavy duty enclosures) 2.71 ft3 gross volume 29.4 in2 of port SUBWOOFER BOX DIMENSIONS L x W x H: 29 x 16 x 14 Recommended subwoofers for example are any more budget type of subs such as any Sundown audio subwoofer up to the U series. DO NOT USE THIS BOX FOR ANY BIGGER SUB THAN THAT SUCH AS THE X SERIES, ZV5 SERIES AND UP. IT WILL BREAK THE BOX. Anything above that in size and you would want to purchase one of our custom one off (hand built to order) subwoofer boxes. ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 12 Reviews 5 Sub box Posted by Vincent on Sep 12, 2024 The box is outstanding thanks ? ? for a great product 5 Sub box Posted by Christian on Feb 22, 2022 Box is well constructed and fits my split rear seat tundra great. Great lows and speaker fitment for my sundown subs 5 Awesome box!!! Posted by Francis on Feb 11, 2022 This box is awesome! It gets super low and loud. I tried 2 cheap pre-fab boxes before finding Down4Sound products (the cheap boxes were tuned to about 44hz). My system sounds so much better with the Down4Sound 32hz tuned box. It is extremely well built for the price. I highly recommend! 5 Profab dual 10 sub box Posted by Lee Steptoe on Nov 13, 2021 4 Duel 10 sub box Posted by Steven S Seibert on Nov 09, 2021 Love the box and the routed graphics are really cool just wish it had the option for hooking up 2 subs separately for a 2 channel amp like the one I purchased but u have to wire the 2 subs in Parallel then have one channel but other then that the box is a 10/10 ... 5 Nice and sturdy budget box and sweet design Posted by Anthony on Sep 19, 2021 Loving the box especially because what you get for the price . You get a nice design and a sturdy build that looks good in the trunk . Have 2 sundown sa 10 v2 in here with the sundown 3500 sia . From customer service to shipping has been nothing but good . Ill be coming here from now on with all my audio needs 5 Posted by Deair Williams on Aug 19, 2021 Worth the money best box I ever brought 5 Prefab box Posted by Henry Vasquez on Jul 18, 2021 It makes my suv looks custom. Nice box good quality. Worth every penny. Only have the 10 inch but I love it!!!! Would buy again 3 Purchased this box 2 months ago ,so it said the box could handle sundown u series subs it cant the box is starting to to come apart but it is built to specs and sounds good but u series subs are t Posted by Shawn rivera on Jul 10, 2021 Purchased this box 2 months ago ,so it said the box could handle sundown u series subs it cant falling apart 5 Loud and tuned low Posted by Alexander Nielsen on Jun 30, 2021 For the price you can’t go wrong ,this D4S box made the 2 sundown U series subs sound better than the Sound Ordinance prefab box from Crutchfield. Both boxes say they are just over 1 cubic feet per sub but the D4S box just sounds better . Next View All Close

Description 5 Reviews Description TEAM 2 - 15 inch DIY Subwoofer Box Flatpack Kit Precut for 2 - 15 inch subwoofers ported subwoofer enclosure made with DIY flat pack subwoofer kit and glue. Adding 2 - 15 inch subwoofers should be a breeze because the MDF is a high strength, that's precut and predrilled. Not recommended for beginners as this assembly requires some skill. If you are needing one already assembled check out our 2 - 15 Ported Profab Enclosure DIY Flatpack Subwoofer kit for 2 - 15 Subwoofer kit includes: all the pieces to build a box, except terminal, glue, and screws all pieces are pre-drilled Team D4S logo top Other Specifications on the 2 - 15 Flatpack Subwoofer Kit: WxHxD: 40 inches x 18.75 inches x 24.5 inches 6.58 cubes after displacement Tuning Frequency: 31 hz Port Size WxHxD: 5.5 x 16.5 x 31.5 inches Cutout is 13.88" MAXIMUM SUBWOOFER WEIGHT - 40 POUNDS EACH ****ALL SALES ARE FINAL**** View All Close 5 Reviews 5 15 flatpack Posted by Jimmy moore on Sep 05, 2025 Its a great subwoofer box had fun put it together 4 broken terminal no instructions Posted by jeremy hull on Apr 05, 2022 great bang for your buck however my terminal cup came broken and there was no instructions 5 Sub enclosure Posted by Charles on Jan 10, 2022 Great product very fast shipping no issues at all 5 best value you can get! Posted by Jeremy Hull on Jan 05, 2022 i saved 350 bucks just by building my own profab box. holes are drilled for the screws and the wood is super strong and fits together perfectly. its so easy to put together that anyone could do it. thanks JP! 4 Quality Posted by Jacob king with Audio lane on Dec 29, 2021 Great quality, came as described, however the quick connect terminal arrived crushed into pieces. View All Close

Description 1 Review Description Six - 6.5" Custom Sub Box for Trucks. 6 - 6.5" Custom under or behind the seat Truck Sub boxes are custom made for Ford Trucks, Dodge (RAM) Trucks, Chevy Trucks, Nissan Trucks, and Toyota trucks. CURRENTLY AROUND A 4-6 WEEK BUILD TIME PLEASE PUT IN ORDER NOTES IF YOU NEED THIS BOX FOR 6.5" SUBS OR 8" SUBS. The pictures here are just an example. Your exact box will be tailored to your wants and needs. Down4Sound is has sold thousands to thousands of happy customers, these boxes are shipped safely. Order your custom sub box today! (HAND MADE IN THE USA) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 1 Review 5 I need box for f150 Posted by Ivan on Nov 02, 2020 8” sundowns I have 4 View All Close

The Down4Sound DBz 15" SUBWOOFER - DVC | 1300W RMS is a high-performance subwoofer featuring a 4-inch cone. Rated at 1300W RMS. Thiele-Small parameters: Fs=39.276Hz, Qts=0.497. Maximum linear excursion (Xmax): 30mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound DBz 18" SUBWOOFER - DVC | 1300W RMS is a high-performance subwoofer featuring a 4-inch cone. Rated at 1300W RMS. Thiele-Small parameters: Fs=31.118Hz, Qts=0.466. Maximum linear excursion (Xmax): 30mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound DBz 8" SUBWOOFER - DVC | 700W RMS is a high-performance subwoofer featuring a 4-inch cone. Rated at 700W RMS. Thiele-Small parameters: Fs=46.157Hz, Qts=0.466. Maximum linear excursion (Xmax): 21mm. Designed for deep bass reproduction and high SPL output.

Description Warranty Information 0 Reviews Description DOWN4SOUND - RECONE KIT | TCX-15D2 These are standard drop-in recone kits ONLY. View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 0 Reviews Description DOWN4SOUND - RECONE KIT | TCX-12D2 These are standard drop-in recone kits ONLY. View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 0 Reviews Description DOWN4SOUND - RECONE KIT | TCX-18D1 These are standard drop-in recone kits ONLY. View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 0 Reviews Description DOWN4SOUND - RECONE KIT | TCX-18D2 These are standard drop-in recone kits ONLY. View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 0 Reviews Description DOWN4SOUND - RECONE KIT | TCX-10D1 These are standard drop-in recone kits ONLY. View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description 0 Reviews Description MOUNTING GASKET FOR DBZ 8/10/12/15/18 View All Close 0 Reviews View All Close

Description 0 Reviews Description METAL MOUNTING GASKET FOR DVX 12/15/18 View All Close 0 Reviews View All Close

Description Warranty Information 0 Reviews Description Push Terminal Replacements for Down4Sound DBz 10/12/15/18 Subwoofers View All Close Warranty Information Warranty Information Sundown Audio requires us to send customers with equipment problems directly to them for all warranty and non-warranty claims. Please follow their proceedures.. Sundown Audio RMA form: https://sundownaudio.com/support/return-authorization-form/ Sundown Audio Product Warranty Information: https://sundownaudio.com/warranty/ Sundown Audio - Hours of Operation Monday 9am - 5pm EST Tuesday 9am - 5pm EST Wednesday 9am - 5pm EST Thursday 9am - 5pm EST Friday 9am - 5pm EST Saturday Closed Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 0 Reviews Description Push Terminal Replacements for Down4Sound Dbz-8 Subwoofers View All Close Warranty Information Warranty Information Sundown Audio requires us to send customers with equipment problems directly to them for all warranty and non-warranty claims. Please follow their proceedures.. Sundown Audio RMA form: https://sundownaudio.com/support/return-authorization-form/ Sundown Audio Product Warranty Information: https://sundownaudio.com/warranty/ Sundown Audio - Hours of Operation Monday 9am - 5pm EST Tuesday 9am - 5pm EST Wednesday 9am - 5pm EST Thursday 9am - 5pm EST Friday 9am - 5pm EST Saturday Closed Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 0 Reviews Description Push Terminal Replacements for Down4Sound DVX 12/15/18 Subwoofers View All Close Warranty Information Warranty Information Sundown Audio requires us to send customers with equipment problems directly to them for all warranty and non-warranty claims. Please follow their proceedures.. Sundown Audio RMA form: https://sundownaudio.com/support/return-authorization-form/ Sundown Audio Product Warranty Information: https://sundownaudio.com/warranty/ Sundown Audio - Hours of Operation Monday 9am - 5pm EST Tuesday 9am - 5pm EST Wednesday 9am - 5pm EST Thursday 9am - 5pm EST Friday 9am - 5pm EST Saturday Closed Sunday Closed View All Close 0 Reviews View All Close

The Down4Sound DOWN4SOUND DBz 10" SUBWOOFER - 2 OHM DVC | 1300W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=40.136Hz, Qts=0.419. Maximum linear excursion (Xmax): 28mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound DOWN4SOUND DBz 10" SUBWOOFER - 4 OHM DVC | 1300W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=40.803Hz, Qts=0.42. Maximum linear excursion (Xmax): 28mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound DOWN4SOUND DBz 12" SUBWOOFER - 2 OHM DVC | 1300W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=38.106Hz, Qts=0.431. Maximum linear excursion (Xmax): 28mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound DOWN4SOUND DBz 12" SUBWOOFER - 4 OHM DVC | 1300W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=39.707Hz, Qts=0.454. Maximum linear excursion (Xmax): 28mm. Designed for deep bass reproduction and high SPL output.

Description Warranty Information Additional Information 1 Review Description The DOWN4SOUND DBz-15 D2 is built for listeners who want massive bass output, rugged construction, and exceptional value. With a true 1300W RMS rating, this 15-inch subwoofer delivers aggressive low-frequency performance suited for daily-driven systems and high-output builds. Featuring a dual 2-ohm voice coil configuration and a real carbon fiber dustcap, the DBz-15 D2 offers strong durability, wiring flexibility, and powerful bass response. Key Features 1300W RMS power handling Dual 2-ohm voice coil design 2.75-inch high-temperature voice coil 30 mm one-way Xmax Real carbon fiber dustcap Advanced motor venting for improved cooling Heavy-duty motor structure Technical Specifications (T/S Parameters) Revc (DC Resistance): 3.960 ohm Resonance Frequency (Fs): 39.276 Hz Qms: 2.872 Qes: 0.601 Qts: 0.497 Mms (Moving Mass): 449.095 g Cms (Compliance): 36.653 μm/N Rms: 0.785 Vas: 40.336 L Sd: 88.141 cm² BL Product: 27.022 T·m Sensitivity (SPL): 88.0 dB Xmax: 30 mm Displacement: 0.19 cu ft Engineering and Construction Extended pole piece for improved linear excursion Rear gap and pole venting to enhance cooling Long-fiber spider system for suspension control Precision-wound 2.75-inch voice coil Premium carbon fiber dustcap for added rigidity Recommended Enclosure Sealed: 2.0 cubic feet Ported: 3.0 cubic feet Recommended Tuning: 32 Hz Recommended Port Area: 36 to 45 square inches total Physical Dimensions Cutout Diameter: 13.86 in (352 mm) Mounting Depth: 8.43 in (214 mm) Outside Diameter: 15.59 in (396 mm) Motor Diameter: 13.74 in (349 mm) Net Weight: 34 lb Gross Weight: 37.9 lb Why You Should Buy Strong 1300W RMS output Deep, powerful low-frequency response Flexible dual 2-ohm wiring options Durable construction built to handle high SPL Carbon fiber dustcap adds strength and premium appearance Ideal Applications Daily-driven systems demanding deep, reliable bass Ported or sealed enclosures in sedans, SUVs, trucks, and hatchbacks Systems tuned in the range for deeper low-end performance SQL-style daily setups blending impact and depth Users wanting high-output performance at an affordable cost View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DBz Ohm: 2 Subwoofer Size: 15 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 1 Review 4 Dbz 15 Posted by Leonard hart on Aug 18, 2025 Bought this subwoofer. played it for 2 days then the surround came loose. Sounded horrible. Figured out it was barely glued to the basket so I glued it with e6000 and it is working fantastic all in all it is a great sub I am happy with it. Can't wait for it to break in so I can give it the beans View All Close

The Down4Sound DOWN4SOUND DBz 15" SUBWOOFER - 4 OHM DVC | 1300W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=39.561Hz, Qts=0.57. Maximum linear excursion (Xmax): 30mm. Designed for deep bass reproduction and high SPL output.

Description Warranty Information Additional Information 2 Reviews Description Meet the DOWN4SOUND DBz 18″ Subwoofer —the ultimate budget banger built for enthusiasts who want serious low-end authority without lighting their wallet on fire. Rated at a true 1300W RMS , this 18-inch monster delivers deep, room-shaking bass with the kind of output that makes daily drivers feel like demo vehicles. Equipped with dual 2-ohm voice coils , a 2.75-inch high-temperature coil , 30 mm Xmax , and a real carbon fiber dustcap , the DBz 18″ balances brute force, durability, and flexibility. Big cone, big motor, big smiles. Key Features 1300W RMS power handling Dual 2-ohm voice coil for flexible wiring 2.75-inch high-temperature voice coil 30 mm Xmax for serious low-frequency excursion Real carbon fiber dustcap for rigidity and style Heavy-duty motor structure Designed for high output at an unbeatable price Precision Engineering Highlights BL Product: 28.525 T·m for strong motor control Effective Piston Area (Sd): 120.887 cm² Optimized motor strength and suspension for powerful, efficient bass Built to deliver maximum displacement without sacrificing reliability Technical Specifications (T/S Parameters) Revc (DC Resistance): 3.960 Ω Fs (Resonance Frequency): 31.118 Hz Qms: 2.505 Qes: 0.572 Qts: 0.466 Mms (Moving Mass): 601.593 g Cms (Compliance): 48.832 μm/N Rms: 0.768 Vas: 89.832 L Sensitivity: 88.6 dB Xmax: 30 mm Displacement: 0.21 cu ft Recommended Enclosure Sealed: 3.5 cu ft Ported: 4.5 cu ft Recommended Port Area: 54 to 68 square inches total Optimized for low-frequency output , this sub thrives in ported designs tuned in the high-20s to low-30s Hz range for deep, authoritative bass. Physical Dimensions Cutout Diameter: 16.81 in (427 mm) Mounting Depth: 9.96 in (253 mm) Outside Diameter: 18.47 in (469 mm) Motor Size: 7.48 in (190 mm) diameter | 3.74 in radius Net Weight: 34.2 lb (15.5 kg) Gross Weight: 38.5 lb (17.5 kg) Why You Should Buy Massive 1300W RMS output with real low-end authority Dual 2-ohm coils make system design easy Built to handle high SPL daily abuse Carbon fiber dustcap adds strength, rigidity, and premium aesthetics Incredible performance-to-price ratio in the 18″ class Ideal Applications Daily drivers that want deep, ground-moving bass High-output ported enclosures in SUVs, vans, and large trunks Budget-minded builds that still want real 18-inch performance Show systems and demo setups that demand cone area and presence If you want big bass, big cone area, and big value , the DBz 18″ D2 is exactly the kind of subwoofer that reminds people why size still matters especially below 35 Hz. View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DBz Ohm: 2 Subwoofer Size: 18 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 2 Reviews 5 JP16.2 Posted by Chris stone on Jan 26, 2026 going to be running a JP16.2 on a pair of the DBZ 18"s 5 JP23 1.5 Posted by chris stone on Oct 06, 2025 Have a d4s Dbz 18" on a jp23 1.5 hits good n loud nice lows View All Close

The Down4Sound DOWN4SOUND DBz 18" SUBWOOFER - 4 OHM DVC | 1300W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=30.81Hz, Qts=0.506. Maximum linear excursion (Xmax): 30mm. Designed for deep bass reproduction and high SPL output.

Description Warranty Information Additional Information 5 Reviews Description The DOWN4SOUND DBz-8 D2 is engineered for listeners who want powerful, precise, and affordable low-frequency performance in a compact footprint. Featuring a high-efficiency motor design, extended mechanical throw, and a real carbon fiber dustcap, the DBz-8 delivers impressive output and accuracy suitable for daily driving, compact installs, and value-focused high-performance systems. This model provides a true 700W RMS power rating and a dual 2-ohm voice coil configuration for flexible amplifier matching and wiring options. Every component is built for durability, cooling efficiency, and long-term reliability under demanding playback conditions. Key Features 700W RMS power handling Dual 2-ohm voice coil design 2.5-inch high-temperature voice coil 21 mm Xmax for strong linear excursion Real carbon fiber dustcap for added strength and rigidity Advanced venting throughout the motor structure for improved cooling Heavy-duty construction designed for high output in compact boxes PERFECT SUBWOOFER FOR ALMOST ANY 8 INCH SUBWOOFER NEEDS Technical Specifications (T/S Parameters) Revc (DC Resistance): 4.000 ohm Resonance Frequency (Fs): 44.954 Hz Qms: 2.440 Qes: 0.568 Qts: 0.461 Mms (Moving Mass): 179.966 g Cms (Compliance): 69.651 μm/N Rms (Mechanical Resistance): 0.757 Vas: 3.988 L Sd: 200.105 cm² BL Product: 18.923 T·m Sensitivity (SPL): 79.9 dB Xmax: 21 mm Displacement: 0.13 cu ft Engineering and Construction Optimized compact motor for high efficiency and strong output Rear gap ventilation for reduced coil temperatures during extended play Reinforced suspension for reliable high-excursion performance Precision-wound 2.5" coil for thermal stability Carbon fiber dustcap enhances rigidity and prevents deformation Built to deliver maximum output at an affordable cost Recommended Enclosures Sealed Enclosure: 0.3 – 0.4 cubic feet (net) Ported Enclosure: 0.75 – 1.0 cubic feet (net) Recommended Tuning: 32 Hz Recommended Port Area: 9 – 15 sq in total Physical Dimensions Cutout Diameter: 7.32 in (186 mm) Mounting Depth: 6.61 in (168 mm) Outside Diameter: 8.71 in (221 mm) Motor Diameter: 7.32 in (186 mm) Net Weight: 23.6 lb (10.7 kg) Gross Weight: 26.9 lb (12.2 kg) Why You Should Buy the DBz-8 D2 Strong, clean output at an affordable price Compact footprint with surprising low-end authority Dual 2-ohm coils provide flexible wiring options Carbon fiber dustcap adds strength and premium appeal Designed for users who want big performance without overspending Ideal Applications Daily-driven builds needing big bass in limited space Systems tuned in the 28–35 Hz range, where the DBz-8 delivers deep, rolling lows amplified by real vehicle cabin gain Compact ported boxes, under-seat enclosures, hatchbacks, and small SUV installs SQL-style daily systems with strong punch and usable low-end extension Users wanting responsive, hard-hitting bass that blends depth with aggression View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DBz Ohm: 2 Subwoofer Size: 8 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 5 Reviews 5 DBZ 8” sub Posted by Clint Chambers on Jan 05, 2026 Love these subs. Second time to have them (don’t know why I got rid of the first set)!!! On a budget as most of us are these do the job better than expected. These little dudes are awesome!!!! A++++++++ 4 Dbz 8in. Subwoofer Posted by Leonard hart on Jan 05, 2026 These things bang cant wait to get 2 more for a total of 4 4 Dbz 8 subs Posted by Clint Chambers on Aug 11, 2025 Finally got these subs in a box and hooked up!! I have 4 of them underneath my back seat of my crew cab GMC pickup. I got to say these dudes are kick A! I have them wired to 1 ohm being powered by the JP23v2. Which is just right. I have had the Skar EVL8 but, in my personal opinion the DBZ8 is better for my application!!! 5 Best product Posted by Logan Cormier on Feb 27, 2025 As a dealer for all Down4sound products I will say hands down it is the best product that I have bought and install inside of my customers vehicles 5 Dbz 8 Posted by Ronald Summey on Dec 02, 2024 Love the sub it's sound way more expensive than what it cost. View All Close

The Down4Sound DOWN4SOUND DBz 8" SUBWOOFER - 4 OHM DVC | 700W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=46.157Hz, Qts=0.466. Maximum linear excursion (Xmax): 21mm. Designed for deep bass reproduction and high SPL output.

Description Warranty Information Additional Information 0 Reviews Description The DOWN4SOUND DVX-10 D2 is engineered for listeners who demand tight, authoritative, and durable low-frequency performance in a compact 10-inch platform. Designed around a high-strength motor, extended linear excursion, and a rigid carbon fiber dustcap, the DVX-10 D2 delivers controlled, punchy bass that excels in daily systems, demo setups, and high-power compact builds. With a dual 2-ohm voice coil configuration , the DVX-10 D2 offers flexible wiring options while maintaining excellent motor control, thermal efficiency, and long-term reliability under sustained load. Key Features High RMS power handling for demanding systems Dual 2-ohm voice coil configuration 3-inch high-temperature copper voice coil Long linear excursion for controlled low-frequency output Carbon fiber dustcap for rigidity and reduced flex Advanced motor ventilation for improved cooling Heavy-duty suspension designed for daily and high-output use Compact 10-inch format with serious low-end authority Technical Specifications (T/S Parameters – DVX-10 D2) (Measured via LinearX) Revc (DC Resistance): 3.79 Ω Resonance Frequency (Fs): 38.07 Hz Qms: 3.110 Qes: 0.488 Qts: 0.422 Mms (Moving Mass): 379.82 g Cms (Compliance): 46.02 µm/N BL Product: 26.53 T·m Vas: 7.34 L Sd: 346.36 cm² Sensitivity (SPL): 81.3 dB Xmax: 31 mm Engineering and Construction Extended pole piece for improved linearity and cone control Dual-flared pole venting for low-noise airflow Rear gap ventilation to reduce voice-coil temperature during sustained playback Large motor structure for strong magnetic control Long-fiber spider system for stable, repeatable suspension behavior Carbon fiber dustcap for added strength and professional appearance Recommended Enclosure Ported Enclosure (Recommended) Net Volume: ~1.1 – 1.3 cubic feet Tuning Frequency: ~34–35 Hz Displacement: .21 cu fts This enclosure provides strong low-end extension, fast transient response, and excellent output for daily music while maintaining control and efficiency. Physical Dimensions Cutout Diameter: ~9.45 in (240 mm) Mounting Depth: ~8.86 in (225 mm) Overall Diameter: ~11.42 in (290 mm) Motor Diameter: ~10.04 in (255 mm) Weight: ~45 lb Why Choose the DVX-10 D2 Compact footprint with authoritative bass output Designed for clean, controlled low-frequency reproduction Dual 2-ohm coils allow flexible amplifier wiring Carbon fiber dustcap enhances durability and aesthetics Excellent balance of daily drivability and output capability View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DVX Ohm: 2 Subwoofer Size: 10 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

Description Warranty Information Additional Information 0 Reviews Description The DOWN4SOUND DVX-10 D4 is engineered for listeners who demand tight, authoritative, and durable low-frequency performance in a more compact footprint . Built with a high-strength motor structure, extended mechanical throw, and a rigid carbon fiber dustcap, the DVX-10 delivers impressive output and control ideal for daily driving, demo systems, and high-power compact builds. Rated for true high-power handling and equipped with dual 4-ohm voice coils , the DVX-10 D4 offers flexible wiring options while maintaining excellent efficiency, cooling, and long-term reliability under sustained SPL. Key Features High RMS power handling for demanding systems Dual 4-ohm voice coil configuration 3-inch high-temperature voice coil Long linear excursion design Carbon fiber dustcap for added rigidity and durability Advanced motor ventilation for superior cooling Heavy-duty construction built for daily and high-output use Compact 10-inch format with serious low-frequency authority Technical Specifications (T/S Parameters – DVX-10 D4) Revc (DC Resistance): 6.05 Ω Resonance Frequency (Fs): 38.54 Hz Qms: 3.409 Qes: 0.531 Qts: 0.459 Mms (Moving Mass): 360.12 g Cms (Compliance): 47.35 µm/N BL Product: 31.53 T·m Vas: 8.07 L Sd: 346.36 cm² Sensitivity (SPL): 81.3 dB Xmax: 31 mm Engineering and Construction Extended pole piece for improved linearity and mechanical control Dual-flared pole venting for reduced turbulence and quiet airflow Rear gap ventilation to manage voice coil temperatures under load Large-format motor for increased magnetic strength and efficiency Long-fiber spider system for consistent suspension behavior Carbon fiber dustcap for reduced flex and enhanced durability Recommended Enclosure Ported Enclosure (Recommended) Net Volume: ~1.25 cubic feet Tuning Frequency: ~34–35 Hz Displacement: 21 cu ft This alignment delivers strong low-end extension, fast transient response, and excellent output for daily music while maintaining control and efficiency. Physical Dimensions Cutout Diameter: 9.45 in (240 mm) Mounting Depth: 8.86 in (225 mm) Overall Diameter: 11.42 in (290 mm) Motor Diameter: 10.04 in (255 mm) Weight: ~45 lb Why Choose the DVX-10 D4 Compact size with serious low-frequency output Designed for clean, controlled bass with high durability Dual 4-ohm coils allow flexible wiring configurations Carbon fiber dustcap adds strength and premium appearance Ideal balance of SPL capability and daily sound quality View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DVX Ohm: 4 Subwoofer Size: 10 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

The Down4Sound DOWN4SOUND DVX 12" SUBWOOFER - 2 OHM DVC | 1700W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=38.387Hz, Qts=0.431. Maximum linear excursion (Xmax): 33mm. Designed for deep bass reproduction and high SPL output.

Estimated Ship-Out Date:12/15 The DOWN4SOUND DVX-12 D4 is engineered for listeners who demand authoritative, precise, and durable low-frequency performance. Built with a high-strength motor, extended mechanical throw, and a real carbon fiber dustcap, the DVX-12 delivers exceptional output and accuracy suitable for daily driving, demonstration builds, and high-power systems. This model provides a true 1700W RMS power rating and a dual 4-ohm voice coil configuration for flexible amplifier matching and wiring options. Every component is designed for efficiency, cooling, and long-term reliability under significant sound pressure levels.Key Features 1700W RMS power handling Dual 4-ohm voice coil design 3-inch high-temperature voice coil 33 mm one-way Xmax for extended linear travel Full carbon fiber dustcap for strength and rigidity Advanced venting throughout the motor structure for improved cooling 60-lb heavy-duty construction designed for high output applications 8.66-inch (220 mm) motor diameter Highly extended pole piece for increased linear throw and durability Pole vent flared on both ends for superior airflow and low noiseTechnical Specifications (T/S Parameters) Revc (DC Resistance): 6.050 ohm Resonance Frequency (Fs): 38.950 Hz Qms: 3.083 Qes: 0.600 Qts: 0.503 Mms (Moving Mass): 330.308 g Cms (Compliance): 50.549 μm/N Vas: 138.504 L Sd: 43.374 cm² BL Product: 28.541 T·m Sensitivity (SPL): 83.1 dB Xmax: 33 mm (one-way, mechanical) Displacement: 0.15 cu ftEngineering and Construction Extended pole piece for improved linear performance and mechanical control Dual-flared pole venting for low-noise airflow and efficient heat removal Rear gap ventilation for reduced voice coil temperatures during sustained playback 8.66-inch (220 mm) motor diameter for substantial magnetic strength Long-fiber spider system for reliable, consistent suspension behavior Carbon fiber dustcap for reduced moving mass and enhanced cone rigidityRecommended Enclosure Ported Enclosure:Volume: 2.5 cubic feet (net) Tuning Frequency: 32 HzThis alignment provides strong low-frequency extension, balanced output, and low distortion suitable for daily music listening and high-output builds.Physical Dimensions Cutout Diameter: 11.14 in (283 mm) Mounting Depth: 9.37 in (238 mm) Outside Diameter: 12.44 in (316 mm) Motor Diameter: 8.66 in (220 mm) Weight: 60 lbWhy Choose the DVX-12 D4 High output capability with accurate, controlled low-frequency reproduction Durable design optimized for long-term performance in demanding systems Flexible wiring thanks to the dual 4-ohm voice coils Real carbon fiber dustcap adds both strength and professional appearance Designed for users who require deep, powerful bass without sacrificing clarityIdeal Applications Daily music systems High-power demo builds Trunk or SUV installations SQL (Sound Quality Loud) and SPL-leaning setups Users seeking punchy, strong low-end response in the 30–50 Hz range

Description Warranty Information Additional Information 7 Reviews Description The DOWN4SOUND DVX-15 D2 is engineered for listeners who demand authoritative, precise, and durable low-frequency performance. Built with a high-strength motor, extended mechanical throw, and a real carbon fiber dustcap, the DVX-15 delivers exceptional output and accuracy suitable for daily driving, demonstration builds, and high-power systems. This model provides a true 1700W RMS power rating and a dual 2-ohm voice coil configuration for flexible amplifier matching and wiring options. Every component is designed for efficiency, cooling, and long-term reliability under significant sound pressure levels. Key Features 1700W RMS power handling Dual 2-ohm voice coil design 3-inch high-temperature voice coil 33 mm one-way Xmax for extended linear travel Full carbon fiber dustcap for strength and rigidity Advanced venting throughout the motor structure for improved cooling 65-lb heavy-duty construction designed for high output applications 8.66-inch (220 mm) motor diameter Highly extended pole piece for increased linear throw Pole vent flared on both ends for superior airflow and low noise Technical Specifications (T/S Parameters) Revc (DC Resistance): 2.050 ohm Resonance Frequency (Fs): 30.413 Hz Qms: 2.732 Qes: 0.534 Qts: 0.447 Mms (Moving Mass): 387.231 g Cms (Compliance): 70.720 μm/N Rms (Mechanical Resistance): 0.803 Vas: 53.606 L Sd: 73.062 cm² BL Product: 28.948 T·m Sensitivity (SPL): 86.4 dB Xmax: 33 mm (one-way) Displacement: 0.20 cu ft Engineering and Construction Extended pole piece for improved linear performance and mechanical control Dual-flared pole venting for low-noise airflow and efficient heat removal Rear gap ventilation for reduced voice coil temperatures during sustained playback 8.66-inch (220 mm) motor diameter for substantial magnetic strength Long-fiber spider system for reliable, consistent suspension behavior Carbon fiber dustcap for reduced moving mass and enhanced rigidity Recommended Enclosure Ported Enclosure: Volume: 4.5 cubic feet (net) Tuning Frequency: 32 Hz This alignment provides strong low-frequency extension, balanced output, and low distortion suitable for daily music listening and high-output builds. Physical Dimensions Cutout Diameter: 14.17 in (360 mm) Mounting Depth: 10.63 in (270 mm) Outside Diameter: 15.59 in (396 mm) Motor Diameter: 8.66 in (220 mm) Weight: 65 lb Why Choose the DVX-15 D2 High output capability with accurate, controlled low-frequency reproduction Durable design optimized for long-term performance in demanding systems Flexible wiring thanks to the dual 2-ohm voice coils Real carbon fiber dustcap adds both strength and professional appearance Designed for users who require deep, powerful bass without sacrificing clarity Ideal Applications Daily music systems High-power demo builds Trunk or wall installations SQL (Sound Quality Loud) and SPL-leaning setups Users seeking strong low-end response in the 28–45 Hz range View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DVX Ohm: 2 Subwoofer Size: 15 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 7 Reviews 5 The 15 inch dvx is an amazing sub that is built strong tough and puts out heavy deep bass I have 4 of them and I absolutely love them! Posted by Cody hall on Mar 18, 2026 TeamLowlifes 5 DVX 15.2 Posted by Jeremy Ballew on Apr 30, 2025 These subs are very well built. I have 2 of them on a JP63 wired at a .5 ohm with a Mechman 400 amp alternator and a XS d7500 AGM battery and 4 1/0 grounds and 4 1/0 power wires from a SMD distribution block. These speakers can go all day. I do have the JP63 turned down. My point is these DVX 15.2 subs are the real deal. The price is awesome for what you are getting. Plus these subs look great as well. If you are serious about music and you want it loud and to hit hard this is the place to purchase. Thanks Down4sound 4 Why are the specs off?? Posted by Unknown on Feb 06, 2025 Let me start by saying this woofer is nicely put together, built solid and can handle its rated power all day.. But how can a house branded subwoofer not have the correct cutout size dimensions??? There nothing more aggravating than spending hours designing and building a custom enclosure (and money) to find out that the woofer will not fit because the company’s specifications are wrong.. This is unacceptable. While I’m ranting about specs I might as well mention my subs TS parameters measured quite differently than the ones posted on the products page. This was after 24hr of low wattage free-air breakin. Now this is a very stiff subwoofer so I suspect the parameters will change slightly after some heavy use but they will not change to what’s listed.. I will update this review if I’m able with my measured TS parameters after the 24hr free-air break in and after many hours of using my vehicle. But please get the correct cutout Dimensions And the woofers displacement posted please 5 DVX 15 Posted by Dj Johnson on Dec 05, 2024 Luv this woofer and the way it sound. Ordered this single sub to test out for future builds and it has exactly what I've been looking for. Got it on a JP23 V.2 and it's moving pretty good for now during break in stage. I'll definitely recommend this woofer to anybody looking to purchase a new sub... Greenville,MS so u know I had to support JP... Will be buying 18's and 3 more 15's soon. Looking forward to the series of woofers after these because I know it's coming. 5 Dvx 15 Posted by Christopher Wilborn on Nov 21, 2024 I custom built an enclosure for the dvx 15. Running 2500rms to her and i can tell you that she slaps hard af. Lows like you wouldnt believe and looking clean too in my inverted build. 5 Great Posted by Ramón on Nov 13, 2024 They look amazing more than what I was expecting the best subwoofer I ever had 4 Sub looks awesome can't wait to hear how they sound Posted by Dillie on Sep 19, 2024 J.P. you stuck in some great parts, in these subs they look AWESOME!!!? View All Close

The Down4Sound DOWN4SOUND DVX 15" SUBWOOFER - 4 OHM DVC | 1700W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=30.413Hz, Qts=0.447. Maximum linear excursion (Xmax): 33mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound DOWN4SOUND DVX 18" SUBWOOFER - 2 OHM DVC | 1700W RMS is a high-performance subwoofer featuring a 4-inch cone. Rated at 1700W RMS. Thiele-Small parameters: Fs=29.859Hz, Qts=0.472. Maximum linear excursion (Xmax): 33mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound DOWN4SOUND DVX 18" SUBWOOFER - 4 OHM DVC | 1700W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=28.036Hz, Qts=0.541. Maximum linear excursion (Xmax): 33mm. Designed for deep bass reproduction and high SPL output.

Description Warranty Information 2 Reviews Description Tailored for the 2007-2013 GM/Chevy Crew Cab, this Down4Sound PRO-FAB enclosure delivers powerful, precise bass with dual 8-inch subwoofer openings. Designed to fit seamlessly under the rear seat without requiring a lift kit, it ensures easy installation while maintaining your truck’s interior space. Constructed from premium birch wood and coated with a polyurethane bedliner, this enclosure combines durability with superior audio performance. Compatibility: 2007-2013 GM/Chevy Crew Cab (Under Seat, No Lift Required) Configuration: Dual 8-inch subwoofer openings, optimized for Down4Sound DBz 8" subwoofers Material: Premium birch wood with polyurethane bedliner coating for enhanced durability Outside Dimensions: Width: 54 inches Front Height: 9 1/2 inches Rear Height: 8 inches Depth: 14 inches Net Airspace (After Displacements): 0.98 cubic feet Port Information: Port Area: 11.22 square inches Port Depth: 23 1/2 inches Tuning Frequency: 33.66 Hz This expertly tuned enclosure enhances your vehicle’s audio system by delivering deep, rich bass for an immersive listening experience. Built with precision and quality, it’s the ideal upgrade for any audio enthusiast. ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 2 Reviews 5 Boom!!! Posted by Darrius Vickers on Aug 19, 2025 I couldn’t be more impressed with my latest Down4Sound truck enclosure. The box is extremely well-built and has a clean, appealing look that instantly stands out. It’s easily one of the best prefab/ProFab enclosures I’ve ever owned, and the attention to detail really shows. The tuning is spot-on, delivering excellent performance right out of the gate. Overall, I highly recommend this enclosure to anyone looking for both quality craftsmanship and great sound. 4 Fitment Posted by Andrew on Dec 16, 2024 This box does not fit under the rear seat in a 2007 Chevy Siverado Crew Cab correctly without a seat lift, if you want it to fit under the seats properly you Will need a seat lift View All Close

Description Warranty Information 2 Reviews Description Tailored specifically for 2019-2024 GM/Chevy Crew Cab models, the Down4Sound PRO-FAB enclosure is designed to provide precise, impactful bass without requiring a seat lift. Featuring dual 8-inch subwoofer openings, this enclosure is crafted from premium birch wood and coated with a durable polyurethane bedliner to ensure longevity and performance. With its precision tuning and optimized port design, this enclosure guarantees exceptional sound quality and reliability. Compatibility: 2019-2024 GM/Chevy Crew Cab (Under Seat, No Seat Lift Required) Configuration: Dual 8-inch subwoofer openings Material: Premium birch wood with polyurethane bedliner coating for added durability Outside Dimensions: Width: 52 inches Front Height: 11 inches Rear Height: 7.5 inches Depth: 13 inches Net Airspace (After Displacements): 1.795 cubic feet Subwoofer Cutout: 7.5 Inch Port Information: Area: 10.98 square inches per port Depth: 27 11/16 inches Tuning Frequency: 33.5 Hz Recommended Subwoofer: Optimized for Down4Sound DBz 8" Subwoofers ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 2 Reviews 5 SQ meets the L Posted by Shaun "Herts" Harris on Feb 23, 2026 Ok, I purchased the box before the Subs. So i matched the Subs with the box Parameter. Very Well Build and Sound Quality is A1. I merged 2 B2Audio Rage 8s on a 1200 watt kicker. A 1/4 turn on my bass knob, Poop gets violent. This is in my 22 Silverado High Country under rear seat. Everything connected perfectly, 1 speaker terminal so if you have 2 of something- be prepared to combine the Ohms. Set-Up (2) B2Audio Rage 8s (500rms each) (1) Kicker 1200.cxa tuned myself with a voltermeter D4Sound Box - On sale @ post time If this combination doesn't impress you, cut the hair out your ears, lol. I love it! 5 Incredible Box Posted by Randal Villines on Oct 23, 2025 This box is amazing. I went from a cheap 4 sub box with terrible design to this high quality 2 subwoofer ported box. The box sounds amazing. I cut out the round subs and put in a couple of L7's and you can't beat the quality of this box. The length of the port and airspace are not just randomly fabricated, you can tell this box was made to sound amazing in our new gm trucks. I'm gonna put two Solo X 8's soon. View All Close

Description Warranty Information 1 Review Description Designed specifically for 1999-2007 Chevy/GMC Crew Cab trucks, the Down4Sound PRO-FAB (Quad) enclosure is built to deliver exceptional bass performance. With four 6.5-inch subwoofer openings, this ported enclosure fits perfectly behind the rear seat , maximizing space while providing powerful and accurate bass output. Constructed from premium birch wood and coated with a durable polyurethane bedliner, this enclosure is built to last and handle high-performance demands. Compatibility: 1999-2007 Chevy/GMC Crew Cab (Behind the Rear Seat) Configuration: Quad 6.5-inch subwoofer openings Material: Premium birch wood with polyurethane bedliner coating for extra durability Outside Dimensions: Width: 56 inches Front Height: 22 inches Rear Height: 22 inches Depth: 8 inches Net Airspace (After Displacements): Internal volume provided in spec. Subwoofer Cutout: 5.51 Inch Port Information: Type: 1 x Square port Inner Surface Area: 12.18 square inches Depth: 9.64 inches (including cabinet thickness) Tuning Frequency: 34.38 Hz Recommended Subwoofer: MADE FOR MOST 6.5" Subwoofers ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 1 Review 2 Close to being a good enclosure but needs a few revisions Posted by Chris on Feb 10, 2025 So I do not like leaving bad reviews but this box needs a few items to make it work. First issue is it does not fit, I had bevel the rear mid section to fit against the cab wall and this is after I removed everything including the padding. I did end up using sound deadening material and covered the complete wall and added 4 inch wide by 1/4 inch thick foam strips to help the vibrations & rattles. I did have to open the holes for the subs but I was aware that I would have to by the specs. Also the port is right up against panel and I will try to open up the panel on my truck to see if this helps. I would also suggest a few braces in the enclosure and not use a sub with a high surround as it sits right on the back of the seat. I did add spacers to the box to help with this but i'm sure if the seat gets moved forward it should help this. View All Close

Description Warranty Information 0 Reviews Description Designed for the 2019+ GM/Chevy Crew Cab, this Down4Sound PRO-FAB enclosure is tailored for audio enthusiasts seeking deep, powerful bass. Featuring four 8-inch subwoofer openings, it is precision-tuned to 32.5 Hz to ensure excellent sound performance. Crafted from premium birch wood and coated with a polyurethane bedliner, this enclosure is built for durability and superior audio output. A 2.5-inch seat lift is required for proper installation, making it ideal for high-performance audio systems. Compatibility: 2019+ GM/Chevy Crew Cab (Under Seat, 2.5-Inch seat lift is required BUT IS NOT INCLUDED ) Configuration: Quad 8-inch subwoofer openings Material: Premium birch wood with polyurethane bedliner coating for enhanced durability Outside Dimensions: Width: 52 inches Front Height: 8 5/16 inches Rear Height: 13 inches Depth: 14 3/4 inches Speaker cutout diameter (Ø) : 191.41 mm - 7.54 in Net Airspace (After Displacements): 2.47 cubic feet Port Information: Port Area: 10.98 square inches each Port Depth: 29 inches Tuning Frequency: 32.5 Hz Recommended Subwoofer: Optimized for Down4Sound DBz 8" Subwoofers ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 1 Review Description Engineered for the 2019+ GM/Chevy Crew Cab, the Down4Sound PRO-FAB enclosure is designed to deliver powerful and precise bass. With four 8-inch subwoofer openings, this enclosure fits seamlessly under the rear seat without the need for a seat lift. Crafted from premium birch wood and coated with a durable polyurethane bedliner, this enclosure combines durability and performance, making it the perfect addition to your vehicle’s audio system. Compatibility: 2019+ GM/Chevy Crew Cab (Under Seat, No Seat Lift Required) Configuration: Quad 8-inch subwoofer openings Material: Premium birch wood with polyurethane bedliner coating for enhanced durability Outside Dimensions: Speaker cutout diameter (Ø) : 191.41 mm - 7.54 in Width: 52 inches Front Height: 11 inches Rear Height: 7.5 inches Depth: 13.75 inches Net Airspace (After Displacements): 1.73 cubic feet Port Information: Port Area (Each): 10.98 square inches Port Depth: 27 11/16 inches Tuning Frequency: 33.5 Hz Recommended Subwoofer: Optimized for Down4Sound DBz 8" Subwoofers ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 1 Review 5 Speaker box for 8 subs Posted by Nachobabydaddy on Mar 19, 2025 It is a clean cut nice box holds my 8 u series sundowns . View All Close

Description Warranty Information 0 Reviews Description Tailored for the 1999-2007 GM/Chevy Extended Cab, this Down4Sound PRO-FAB enclosure is designed for serious bass enthusiasts. Featuring four 8-inch subwoofer openings, it delivers precision-tuned bass output with a tuning frequency of 32.5 Hz. Crafted from premium birch wood and finished with a durable polyurethane bedliner, this enclosure is built to withstand high-performance demands. A 2.5-inch seat lift is required for proper installation. Compatibility: 1999-2007 GM/Chevy Extended Cab (Under Seat, 2.5-Inch seat lift is required BUT IS NOT INCLUDED ) Configuration: Quad 8-inch subwoofer openings Material: Premium birch wood with polyurethane bedliner coating for enhanced durability Outside Dimensions: Width: 55 inches Front Height: 9 1/2 inches Rear Height: 12 1/2 inches Depth: 14 3/4 inches Net Airspace (After Displacements): 1.29 cubic feet per side Port Information: Port Area: 10.98 square inches each Port Depth: 12 1/2 inches Tuning Frequency: 32.5 Hz Recommended Subwoofer: Optimized for Down4Sound DBz 8" Subwoofers This enclosure is the perfect fit for upgrading your GM/Chevy Extended Cab’s audio system, providing exceptional durability and bass performance for high-output setups. ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 1 Review Description Designed specifically for 2007-2013 Chevy/GM Crew Cab trucks, the Down4Sound PRO-FAB (Quad) enclosure is engineered to deliver ground-shaking bass. With four 8-inch subwoofer openings, this ported enclosure is built from premium birch wood and coated with a polyurethane bedliner for enhanced durability. Featuring a square air port design, it’s precision-tuned for powerful and accurate bass performance. This enclosure fits seamlessly under the seat but requires a 2.5-inch seat lift for proper installation. Compatibility: 2007-2013 Chevy/GM Crew Cab (Under Seat, 2.5-Inch Seat lift is required BUT IS NOT INCLUDED ) Configuration: Quad 8-inch subwoofer openings Material: Premium birch wood with polyurethane bedliner coating for extra durability Outside Dimensions: Width: 54 inches Front Height: 12.5 inches Rear Height: 11 inches Depth: 14.75 inches Net Airspace (After Displacements): 1.795 cubic feet Subwoofer Cutout: 7.32 inch Port Information: Type: Square air ports - DRIVERS & PASSENGER SIDE - 2 PORTS TOTAL Inner Surface Area: 12.18 square inches Depth: 9.91 inches (including cabinet thickness) Tuning Frequency: 40.06 Hz Recommended Subwoofer: Down4Sound DBz 8" Subwoofers ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 1 Review 5 4 8s American bass Godzilla yea. Posted by Mike Jones on Aug 29, 2025 For starters a big Thanx to JP and Fam for all everyone does. I purchased this box on the fact it could handle the Zillas and under the seat oh yea. The 2.5 seat lift did not clear so I purchased the 3.5 and still not soni c9mbined them for 6inch total lift and still not clearing. Im not complaining because the box is staying so the seat will not be safe for my 8 year old that loves your videos too, to be able to sit in the back. So just a heads up.to future purchasers pay attention to the measurements. This box still rocks and kills any 200 dollar box, JP 16.2 camo setup and ready to push, had everything but not the time to put together and install until today. Thanx again to all who support you and until my next purchase D4S for life. View All Close

Description Warranty Information 18 Reviews Description Single 12 Inch Ported Sub box Enclosure (1 - 12) Down4sound PRO-FAB 12 Get the most Powerful Bass available in a prefab 12-Inch Ported Sub Box. Upgrade your car audio system with the Single 12 Inch Ported Sub box Enclosure from Down4sound PRO-FAB. This high-quality subwoofer enclosure is specifically designed to accommodate a 12-inch subwoofer and get down low, providing powerful and clear bass for an amazing listening experience. The ported design of the enclosure allows for maximum airflow, resulting in optimized acoustics and enhanced bass response. Durable and Stylish Design for Your Car Not only does the Single 12 Inch Ported Sub box Enclosure offer outstanding performance, but it also looks great in your car. The triple coated poly bedliner we use on the enclosure's rugged construction ensures durability and longevity, while the sleek and stylish design adds a touch of sophistication to your car's interior. You'll love the way it complements your vehicle's overall aesthetic. Easy Installation and Use The Single 12 Inch Ported Sub box Enclosure is incredibly easy to install and use.With clear and straightforward instructions, even if you're not an expert in car audio, you'll be able to set it up quickly and easily. Once installed, you'll be able to enjoy powerful and clear bass from your favorite songs. Single 12 Inch Ported Sub box Enclosure (1 - 12) Down4sound PRO-FAB 12 v1 Specifications: 2.0 Cube Single 12" Enclosure .75" MDF 32Hz Tuning Subwoofer cutout - 11 1/16" Mounting Depth - 12.5" Black Bedliner Finish Plastic terminal Cup Shipped in Double Walled Cardboard Box, inside plastic bag, with Foamed corners Good for up to 3000w Rated Power (Any higher power than this and we highly recommend you get one of our custom hand built heavy duty enclosures) 2.4ft3 GROSS VOLUME 25.6in2 PORT AREA SUBWOOFER BOX DIMENSIONS L x W x H: 22.5 x 17 x 15 Recommended subwoofers for example are any more budget type of subs such as any Sundown audio subwoofer up to the U series. DO NOT USE THIS BOX FOR ANY BIGGER SUB THAN THAT SUCH AS THE X SERIES, ZV5 SERIES AND UP . IT WILL BREAK THE BOX. Anything above that in size and you would want to purchase one of our custom one off (hand built to order) subwoofer boxes. ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 18 Reviews 4 Pro Fab 12 Posted by Terry on Jan 09, 2026 Decent box, the quality of the cuts and the coating are nice. I prefer spring terminals and this has bolt on, not a big deal but it's more work. Seems like a little lighter weight mdf compared to others. The port edges are sharp inside and out. So, I decided to modify my box. The inside port edge got 3 runs of 3/4 round to make a nice rounded edge inside. Outside box port got a frame around the port with 1/2 half round, then bed liner coating to match it. The inside of the box got patches of sound deadener and then and then covered in fleece for some dampening. I ended up with a pretty damn good box, slightly in the small side but tuned 33hz right where I was wanting it. 5 Very well built Posted by Dustin on Sep 14, 2024 This box is worth it sounds amazing and built good. Pre drilled holes already was nice touch. 3 Box is not wired! Posted by Alex on Dec 06, 2023 The box looks to be of good quality and I'm sure will sound good. However, it is not pre-wired from the terminal cup, which was not expected. I'm not sure why you would not pre-wire a pre-fab box. I'm trying to figure out how to wire the thing. I called D4S and the person on the phone had no guidance for how it should be wired. After a few minutes they came back with, "yeah, you should probably solder it". Great, thanks. Now I need to buy something else to wire my pre-fab box. Please be more clear in your product description when your clear competition is other pre-fab boxes that are wired already! 5 Best prefab box out there Posted by Blake M on Jan 04, 2023 Build quality is awesome. Perfect size. Put in trunk of my 2020 Ford Fusion and left me with plenty of extra room in the trunk for work stuff and groceries. Great job D4S on these pro fab boxes. 5 Quality Built Box Posted by Jeffrey Neth on Sep 19, 2022 I still gave this box 5 stars and sounds killer but just wish I knew 4 days later they came out that they were coming out with new design box , lol. 5 Outstanding Subwoofer Enclosure Posted by Tim S. on Sep 10, 2022 I purchased this box to stuff a 12" Deaf Bonce Avatar STU-1246 D1 sub into. I love the threaded inserts. The mounting holes lined up perfectly and the cut-out diameter was spot on. I also really appreciate the interior corner reinforcements. I know I'm pushing the maximum capabilities of this box with a 3,000 watt subwoofer ...but such is the the life of a basshead. If I break the box, I'll buy another. Get you one! 5 Quality Built Box Posted by BBQ Freak on Sep 05, 2022 Love the box designs and love that it is tuned lower then most pre-fab boxes and is a great looking box . I put a Sundown U series sub in and sounds killer for a sound quality mix . I just wish I would of known they were coming out with the new design box three days after I bought this one for the same price . 5 Perfect Posted by CL on Jun 13, 2022 Probably one of the best pre fab boxes I have seen. Love the truck liner over carpet. 4 Great Prefab box Posted by David M on Jun 06, 2022 I have a Skar Audio VXF running off of 2300watts . Seams sturdy but time will tell, sounds better and hits lows better than my Skar prefab box. Some slight port noise but otherwise great box 5 12 Team D4S Pro Fab Posted by J Markma on Apr 12, 2022 Awsome enclosure. I'm using a Sundown Sa 12 V2 in this enclosure and it sounds great. Next View All Close

Description Warranty Information 34 Reviews Description Down4sound Dual 12 Inch Ported PROFAB Sub box Enclosure (2 - 12): Down4sound PRO-FAB 12 | 2 12 Sub Box | Dual 12-Inch Ported Subwoofer Enclosure Box Looking for a sub box to enhance your car audio system? Look no further than our selection of 12 inch sub boxes, including our popular dual 12 sub box and 12 inch ported sub box options. Our dual 12 sub box is the perfect choice for serious bassheads. With two 12 inch subwoofers and a carefully designed for ported enclosure applications, this sub box delivers deep, rich bass that will make your music come alive. And with our high-quality construction, you can be sure that your sub box will last for years to come. For those who want the perfect combination of power and precision, our 12 inch ported sub box is the way to go. The carefully designed port allows for maximum airflow, delivering a crisp and accurate sound that is sure to impress. And with our affordable prices, you don't have to break the bank to get the high-quality audio you deserve. 4.0 Cube Dual 12" Enclosure Subwoofer cutout - 11 1/16" .75" MDF 31Hz Tuning Mounting Depth- 15" Black Bedliner Finish Plastic terminal Cup Plastic Bag Foam Corners Double Wall Shipping Box Good for up to 3000w Rated Power (Any higher power than this and we highly recommend you get one of our custom hand built heavy duty enclosures) Designed by Bassahaulic Productions Down4sound Profab 2-12 SUBWOOFER BOX DIMENSIONS: L x W x H: 32.5 x 20 x 16 Recommended subwoofers for example are any more budget type of subs such as any Sundown audio subwoofer up to the U series. DO NOT USE THIS BOX FOR ANY BIGGER SUB THAN THAT SUCH AS THE X SERIES, ZV5 SERIES AND UP. IT WILL BREAK THE BOX. Anything above that in size and you would want to purchase one of our custom one off (hand built to order) subwoofer boxes. ****ALL SALES ARE FINAL*** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 34 Reviews 5 Quality!! Posted by Anthony on Sep 18, 2024 So this ad needs to be updated! The box is NOT MDF, in fact seems like Birch or some other plywood. The box i replaced with this was smaller and made of MDF and twice as heavy. Dont get me wrong I’m not talking smack, that makes me happy! I needed to cut some weight. Also this box now comes with an SMD quality terminal cup!! Overall I’m extremely happy. I hooked it up last night and quickly listened to it at current amp settings and was blown away!! Subs are much happier in this box than the one they were in! This box gets low while also getting loud!! Can’t wait to dial in the amp and see what its true potential is. Also love the embossed logo on top! I’d say for the price this box is the best on the market for overall quality and sound! The Bedliner is a nice touch to help with scuffs and what not. Did take a bit to get it but that was UPS and not D4S. Also has a small ding on the bottom back side which again is UPS. But if u are hesitant on if u should get this box or not, don’t hesitate anymore. Just buy it already!!! 4 WRONG DIMENSIONS Posted by Tyler on Jul 16, 2024 The box is NOT 16 inches tall. It is 15.25 inches tall. The only reason I specifically bought this box was because it needed to fill a 16 inch space....very disappointing for my particular situation. Not worth trying to refund, but I wouldn't have bought it if I knew this beforehand. Although, box seems fine aside from that. 5 Pro fab box Posted by Paul Smith on Feb 15, 2024 Let me start off by saying Jp and the D4s staff are fantastic and very helpful!!! Now to the box review. When I first got to use it my Sundown u12s were RETARDED Loud in it but when I started noticing some rattling from the box. The subs were actually pushing the box apart. The enclosure is built nice, my only suggestion is to pre drill the holes and rabbit joint the corners and it would be perfect!! No way am i knocking Jp because when I called the staff they gave me a 40.00 credit and appreciated the feedback but the u12s are too much for this box. I hope this helps and Jp you and your staff are fantastic!! D4s for life!! 3 Great box for looks Posted by Kemkyothood on Apr 03, 2023 It's a great box but the bass is low.my old box sound way better and louder.i might have order the wrong box.i have two sundown 12 u and they are 1500 watts .I took the box to a audio shop and they said it sound way better in my old box and hit way harder.i guess I try another box later a bigger one. 5 Sub box Posted by Frank on Dec 19, 2022 Best sub box I ever owned . Heavy duty love the engraving. All around perfect box for my subs. 5 Exceeded my expectations. Can’t beat it for the price. Posted by Timothy Scott on Nov 09, 2022 Sounds great. Definitely plays lower than I expected and takes every bit of 3000w with ease. 5 Pro fab dual 12 d4s Posted by Kenny on Aug 30, 2022 The box sounds excellent. I always built boxes and this hits very good. Not ro mention very well made . 5 Best Pre-Fab Posted by Hans Marske on Aug 26, 2022 This box is the best pre-fab enclosure I have ever purchased. It actually hits the lows! Sounds amazing. Nice finish on it as well. Thank u. 4 Good “prefab” Posted by Shaun on Aug 17, 2022 Well built box with good tuning, exactly what I was looking for saved me from building a box. only issue I had with it is the Mounting holes for the woofers, the bolt pattern was not correct the circumference was to small for my deaf bonce apocalypse woofers tried everything to make them work but had to make my own holes. Thanks for the awesome looking box D4S!!! 4 Box Posted by James Hohmann on Aug 12, 2022 This box would be better with 2 terminal cups, so if you are running 2 2 ohm subs, you can. wire them to 1 ohm. Next View All Close

Description Warranty Information 3 Reviews Description Down4sound PRO-FAB 15 | 15 Sub Box | Single 15-Inch Ported Subwoofer Enclosure Box 1-15: Introducing the Down4sound PRO-FAB 15, the perfect 15 inch ported sub box solution for DEEP BASS music lovers looking for a top-of-the-line subwoofer enclosure box. Designed by Bassahaulic Productions, this single 15-inch ported subwoofer box is a force to be reckoned with. Crafted from high-quality 0.75" MDF and finished with black bedliner, this 3.55 cube enclosure not only looks great but is also built to last. The plastic terminal cup and included plastic bag make installation a breeze, while the foam corners keep your subwoofer safe and secure. With a 32Hz tuning, the PRO-FAB 15 is optimized for low frequency response and can handle up to 3000w rated power, making it perfect for any Sundown audio subwoofer up to the SA series. This enclosure is designed to bring out the best in your subwoofer, delivering powerful, clear, and distortion-free bass. At 30 1/8th x 20 1/8th x 17 1/8th inches, the PRO-FAB 15 is the perfect size for any car trunk, delivering great sound quality without sacrificing space. However, please note that this box is not suitable for bigger subs, such as the U series, X series, ZV series, and up. If you are planning to use a bigger sub, we highly recommend our custom hand-built heavy-duty enclosures for optimal performance. 3.55 Cube Single 15" Enclosure 32Hz Tuning .75" MDF Subwoofer cutout - 13.75" Mounting Depth -14" Black Bedliner Finish Plastic terminal Cup Plastic Bag Foam Corners Double Wall Box Shipping Box Good for up to 3000w Rated Power (Any higher power than this and we highly recommend you get one of our custom hand built heavy duty enclosures) L x W x H: 30 1/8th x 20 1/8th x 17 1/8th Recommended subwoofers for example are any more budget type of subs such as any Sundown audio subwoofer up to the U series. DO NOT USE THIS BOX FOR ANY BIGGER SUB THAN THAT SUCH AS THE U SERIES, X SERIES, ZV SERIES AND UP. IT WILL BREAK THE BOX. Anything above that in size and you would want to purchase one of our custom one off (hand built to order) subwoofer boxes. ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 3 Reviews 5 15 inch box Posted by Lee on Jul 27, 2022 I love this box. It’s sounds great with a 15 inch Sundown 1000 watt sub. 5 15 prefab Posted by Jeff on Mar 18, 2021 Very nice quality made box! Happy with it, was going to use it just to get by until I had a box built and I think I'll just keep rocking this guy! Tune is great and it's a clean look! 5 Great box! Posted by Ty Sallis on Mar 05, 2021 Very good box, have a Skar VXF15 in in hits nice and low. Only problem I’ve had is the terminals coming loose causing a spark and me to have to upgrade terminals View All Close

Description Warranty Information 4 Reviews Description Down4sound PRO-FAB 2 15 | 2 15 Sub Box | Dual 15-Inch Ported Subwoofer Enclosure Box Introducing Dual 15" PORTED PROFAB Subwoofer Enclosure, the perfect addition to your car audio system for an unparalleled listening experience. With two 15" subwoofers, this PROfab prefab enclosure is the ultimate choice for powerful, high-quality bass. Crafted with a double-layered baffle for added strength, this enclosure is built to last. The truck bed armor coating provides unparalleled durability, ensuring your enclosure can withstand even the toughest conditions. You can be confident that your enclosure will have a sure seal, providing optimal sound quality with no leaks or loss of bass. To make sure your product arrives in top condition, we use freight shipping. This ensures your box arrives in one piece, ready to install and enjoy. With this Dual 15" PORTED Subwoofer Enclosure, you can expect exceptional sound quality that will take your audio experience to the next level. Whether you're cruising on the highway or just cruising around town, the powerful bass provided by this enclosure will enhance your listening experience like never before. So don't wait any longer, order your D4S PROFAB Dual 15" PORTED Subwoofer Enclosure today and start experiencing unbeatable sound quality. Upgrade your car audio system and enjoy the best listening experience on the road! WxHxD: 40 inches x 18.75 inches x 24.5 inches 6.58 cubes after displacement Tuning Frequency: 31 hz Port Size WxHxD: 5.5 x 16.5 x 31.5 inches Cutout is 13.88" ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 4 Reviews 5 2 15 box Posted by Tomas Barron on Aug 02, 2025 Extremely happy the delivery was amazing. I literally got it in two days. The box is well put together. I have no doubt that my 215 down for sounds DBX will have no problem slapping in there. Thanks JP. 5 Great solid built box Posted by Ricky Singh on Feb 25, 2025 Enclosure is solid build with premium material extremely satisfied and customer service is top notch. Highly recommended over any other sites. 5 Profab 2 15 box Posted by Eric Hawkins on Aug 05, 2021 Shipping was super fast considering it was shipped on a pallet. Very well packaged! Box construction is solid and well built. It’s what I would expect from a custom build. I had to enlarge the openings just a little to fit Sundown SA v2. Not a big deal though. The box is low, deep, and clean! Very satisfied with the box! Well worth it! 5 Awesome Sound, Durable Quality Enclosure Posted by Nickalus Estes on Mar 30, 2021 Waiting for the enclosure to ship wasn’t the best experience. Once shipped, it arrived the next day and the local hub delivered the enclosure free of charge on their personal vehicle. That said, my rating is purely based on the enclosure not the overall experience. The enclosure was very well packaged and protected. I love the lengths that D4S exercised to ensure the likelihood of the enclosure being damaged was minimal to none! Thank you! As for the sound and quality of the enclosure..superb! This well built enclosure crushes the lows with ease. Overall, I am satisfied. View All Close

Description Warranty Information 1 Review Description Triple 10 Inch Ported Sub box Enclosure (3 - 10) Down4sound PRO-FAB If you're a true music lover, you know that the right bass can make all the difference. With the Down4sound (3-10) Triple 10 Inch Ported Sub box Enclosure from Down4sound PREFAB aka PRO-FAB! This you'll be able to experience powerful bass like never before. This premium enclosure is specifically designed to provide deep, thumping bass that will take your music to the next level. Whether you're a hip-hop fan or a rock enthusiast, or just a rebass music rebal this sub box enclosure is sure to deliver the bass you crave. This enclosure is designed to fit three 10-inch subwoofers, so you can choose the perfect subwoofers for your specific needs. With its precision design and high-quality materials, this sub box enclosure is sure to provide the best possible sound quality for your music. Built to Last At Down4sound, we're committed to building high-quality products that are built to last. We used top grade MDF from Canada and then coated the outside with our 2X polyarmor bedliner armor. That's why we use only the highest-quality materials and manufacturing techniques in the construction of our Triple 10 Inch Ported Sub box Enclosure. This enclosure is made from top-quality materials that are designed to withstand even the most extreme conditions, so you can enjoy powerful bass for years to come. Down4sound PROFAB Triple 10 (3-10) Subwoofer Enclosure Specifications : WIDTH x HEIGHT x DEPTH : 34 inches x 13.75 inches x 24 INCHES 3.71 cubes after displacement Tuning Frequency: 32 hz Port Size WIDTH x HEIGHT x DEPTH: 4.5 x 11.5 x 31 INCHES Subwoofer cutout - 9 1/8" ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 1 Review 5 Sub box Posted by Stephen Price on Aug 10, 2023 Came like it was suppose to except didn't have signature or sticker but they fixed it after a couple emails View All Close

Description Warranty Information 3 Reviews Description Quad 10 Inch Ported Sub box Enclosure (4 - 10) Down4sound PRO-FAB 4 10 Introducing the prefab aka profab Quad 10 Inch ported Sub Box, the ultimate solution to elevate your car audio experience. This high-end subwoofer box by Down4sound features a PRO-FAB construction with a double-layered baffle for maximum rigidity and stability. With 4-10 subwoofers, this quad sub box delivers crystal clear sound quality and powerful bass that will take your music experience to the next level. What sets the Quad 10 Inch Sub Box apart is its superior durability. The 2x truck bed armor coating ensures scratch-free and long-lasting performance even after years of use. Plus, the box is shipped via freight to guarantee a safe and secure delivery without any damage. Upgrade your car audio system today with our Quad 10 Inch Sub Box and enjoy the true power of bass. With its exceptional sound quality and durability, this sub box is perfect for any music enthusiast. Don't miss out on this limited-time offer, order now and experience probably the the best prefab sub box in the market. In summary, the Quad 10 Inch Sub Box is a top-notch product designed to deliver exceptional sound quality and durability. With its PRO-FAB construction and 4-10 subwoofers, this sub box is the perfect addition to any car audio system. Order now and take advantage of this limited-time offer to elevate your music experience to new heights! WxHxD: 33 inches x 15.75 inches x 26 inches 4.69 cubes after displacement Tuning Frequency: 32 hz Port Size WxHxD: 5 x 13.5 x 31 inches Subwoofer cutout - 9 1/8" ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 3 Reviews 3 Box Posted by Seth on Nov 20, 2023 Love the box. Hate that it was single terminal for 4 subs and also not meant for a lot of power. Box is already rattling from 4 American bass 1022 at 2ohm with 6k amps. I’m going to brace the port area with 2 inch dowels and hope it holds up. Other than that this thing sounds great 2 Cut outs are WAY too big! Posted by JN on Dec 04, 2021 The cut out holes are way too big, the subwoofer slides all around trying to center it. Then WORST of all when you do finally guess the center the drill holes for the mounting screws are RIDICULOUSLY close to the edge!!! How close you ask 1/8 of an inch or less depending on how well you guessed the center placement. TOTALLY UNACCEPTABLE! 5 D4s subwoofer enclosure Posted by Odanas Hugee on Nov 28, 2021 Solid enclosure that sound great View All Close

Description Warranty Information 10 Reviews Description Down4sound - Single 8 Inch Ported Sub Box enclosure (PROFAB BOX) High-Quality Construction for Ultimate Durability The Down4sound Single 8 Inch Ported Sub Box is built from premium-grade Canadian MDF, ensuring long-lasting durability. The reinforced design of the sub box minimizes unwanted vibrations and provides enhanced sound quality. This makes the Single 8 Inch Ported Sub Box the perfect choice for music enthusiasts looking for a reliable and sturdy storage solution for their car audio system. Unmatched Performance for Dynamic Sound With its 8-inch driver and optimized for most high performance 8 inch subwoofer by design, the Single 8 Inch Ported Sub Box delivers DEEP, powerful, and punchy bass. The sub box's unique tuning mechanism helps to minimize distortion and provide the ultimate sound experience. Whether you're playing hip-hop, rock, or any other genre, you'll be able to enjoy your music to the fullest with this product. Sleek and Stylish Design to Enhance Your Car's Interior The Down4sound Single 8 Inch Ported Sub Box has a sleek and stylish design that complements the interior of any car. Its paint-coated in a polyurethane truck bedliner for. a guarantee leak, free enclosure. The minimalist design of the sub box will make your car audio system look professional and well-integrated, giving your car a polished look. 11.5 Depth x 24" Width x 9.75" Height Tuned to 34 Hz Cutout 7.36" Terminal Rated for 1000w 1 cubic foot of airspace OTHER 8 inch subwoofer boxes available: Dual 8 Inch Ported Sub Box Enclosure Triple 8 inch Ported Sub Box Enclosure Quad 8 Inch Ported Sub Box Enclosure ***ALL SALES ARE FINAL*** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 10 Reviews 5 Awesome Quality Posted by Nicholas Soto on Mar 10, 2023 Paired with a Sundown E8 v6 d2. It sounds amazing. I might get one for my x8v3 soon. Fast shipping and accurate description. 5 8” prefab box Posted by Phillipe Marinelli on Feb 06, 2023 Built well….awesome coating on the exterior 5 This box is AMAZING Posted by John Jennings on Dec 15, 2022 It's not too big, doesn't take up my entire trunk but it's big enough to pack a hell of a punch! I am very impressed how much of a difference it made in my car. 5 Great enclosure Posted by Kiley Sharp on Nov 15, 2022 Coupled with a Sundown X8 the output you get is pretty incredible for a single 8. Only downside is you'll have to trim the opening some to clear the motor and wire. 5 Insane quality Posted by Jarold Sullivan on Sep 23, 2022 Absolute best quality I’ve ever seen from a prefab. Coating feels durable and looks killer! Solid setup and I will be ordering another. 5 Amazing sound Posted by Justin on Aug 08, 2022 This box is incredibly high quality for the price. The sundown audio X8 V3 sounds amazing in this enclosure 5 Nice box Posted by Clint on Jul 31, 2022 I’m honestly surprised. I paired it with a Sundown Xv3 8 and it slams. A great box for the price. 5 big bang for your buck!! Posted by Alfonso Zamora on Jul 12, 2022 At first when I got the box I was afraid it would be to small but it ended up sounding super clean and fits perfect I would definitely buy another one great tune I used it for my dd audio 600 series 5 Single 8 pro fab Posted by Keola on Oct 17, 2021 Best bang for the buck hands down! 5 Quality Posted by Eric on Mar 21, 2021 Definitely a huge step up from all those other prefab boxes you see online, tuned correctly ,nice bedliner coating, and overall decent build quality. View All Close

Description Warranty Information 0 Reviews Description Down4Sound PRO-FAB Birch Flat Pack Dual 8-Inch Ported Subwoofer Enclosure Box - DIY Kit with Precise Dimensions for Superior Bass Elevate your car audio game with the Down4Sound PRO-FAB Birch Flat Pack Dual 8 , a DIY ported subwoofer enclosure kit designed for maximum sound performance. This flat pack is precision-engineered to fit dual 8-inch subwoofers and features a ported design for deep, powerful bass. Constructed from durable birch wood, it offers exceptional strength, acoustics, and longevity. Whether you're a car audio enthusiast or a DIYer, this enclosure box is perfect for creating a custom, professional-grade sound system. Key Features: Custom Dimensions : Compact yet spacious design measuring 24" Width x 17" Depth x 11.2" Height , perfect for a variety of vehicle setups. Precision Engineering : Pre-cut birch wood pieces ensure an easy assembly process while maintaining structural integrity. Ported Design : Tuned to 34 Hz for deep, resonant bass that enhances every beat. High Power Handling : Terminal rated for up to 2500W , accommodating high-performance subwoofers. Dual 8-Inch Compatibility : Designed specifically for two 8-inch subwoofers, offering a secure and snug fit. DIY Kit : Includes pre-cut pieces and detailed instructions, making it an ideal project for both professionals and beginners. Specifications: External Dimensions : 24" Width x 17" Depth x 11.2" Height Cutout Size : 6 inches Material : High-quality birch wood Tuning Frequency : 34 Hz Power Handling : Terminal rated for 2500W Assembly Required : DIY kit with detailed instructions provided ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 3 Reviews Description Build a powerful bass experience with the Down4Sound PRO-FAB Birch DIY Flat Pack, designed for four 6.5-inch subwoofers. This quad 6.5-inch ported subwoofer enclosure kit is perfect for DIY enthusiasts looking to add serious low-end punch to their setup. Crafted from high-quality birch wood, this flat pack provides durability, enhanced acoustics, and a precision-tuned ported design. Assembly is straightforward with pre-cut panels, allowing you to bring your custom audio project to life. Compatibility: Fits four 6.5-inch subwoofers Material: Premium birch wood for durability and rich sound quality Dimensions: 16.5" Depth x 37" Width x 9" Height Tuning Frequency: 36 Hz Cutout Diameter: 6 inches per subwoofer Terminal Rating: 2500W Internal Volume: 1.5 cubic feet (after displacement) Assembly Required: Yes – DIY kit with pre-cut pieces and detailed instructions included Ideal For: Audio enthusiasts wanting a customized, powerful bass solution ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 3 Reviews 4 Easy to build - Great packaging Posted by Jason Whichard on Oct 23, 2025 Assembling the box was straightforward, though it lacked the promised instructions. The packaging arrived safely from Nevada to Virginia. I used Gorilla Wood Glue and 1 5/8” #6 wood screws; the box’s predrilled holes made assembly easy. Printing the box drawings from the Down4SoundShop website helped. I added screws for the port pieces and flipped the etched panel inward, but the box still fit together well and performs as expected. 5 Flat pack sub box Posted by Jeramie Blake on Sep 20, 2025 very straightforward with accurate cuts and predrilled holes for quick assembly,just add carpenter glue 5 Great quality box Posted by Josh on Sep 03, 2025 I had 4 Skar EVL 6.5’s that I need a box for and I found this one. I was a little worried that it would get damaged in shipping because it was going across the country, but it was packaged very well and arrived undamaged. Assembly was a breeze, just needed wood glue and screws. It even had pre drilled hole. Also this thing slams, it sounds great. View All Close

Description Warranty Information 2 Reviews Description Are you in the market for a top-quality ported 10 inch sub box flat pack? Look no further than our flat pack sub box, designed to give you the ultimate in flexibility and convenience when assembling your own subwoofer enclosure kit. Crafted from high-quality materials, our 10 inch sub box flat pack includes ALMOST everything you need to build a durable and long-lasting subwoofer enclosure kit, all without breaking the bank. The flat pack design makes it easy to assemble and customize your sub box to your exact specifications, so you can enjoy the perfect sound quality every time you hit the road. Whether you're a DIY enthusiast or a professional installer, our flat pack sub box is the perfect solution for upgrading your car audio system. With its superior design and easy-to-use components, you'll be amazed at how easy it is to achieve outstanding sound quality and deep, rich bass. So why wait? Order your DIY PROFAB 10 inch sub box flat pack today and experience the ultimate in convenience and performance. Our subwoofer enclosure kit is designed to meet your every need, with a customizable design and premium components that are built to last. Don't settle for anything less than the best - upgrade your car audio system with our flat pack sub box today! .75" MDF Subwoofer cutout - 9 1/8" Mounting Depth - 11" 32Hz Tuning 2.71 ft3 gross volume 29.4 in2 of port SUBWOOFER BOX DIMENSIONS L x W x H: 29" x 16 x 13.2" (inches) all the pieces to build a box, except terminal, glue, and screws ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 2 Reviews 4 Dual 10" flat pack Posted by Ryan moore on Aug 17, 2025 Start with construction..wonderful for the money..nothing cheap about it. Came with a quality terminal cup.just need some speaker wire and a couple o ring connectors and your in business. .it's designed by Drew Jones of bassahaulics designs..went together well and easy aside from the 2 pieces to the port weren't predrilled like the rest of the enclosure..all in all my son is stoked and I'm happy to have gotten from d4s..made life simple.i have pics but it won't let me upload em. 5 Sound quality Posted by rusty pierce on Aug 16, 2025 Love the box was easy to put together and it sounds awesome with my 2 10”dc audio subwoofers. View All Close

Description Warranty Information 10 Reviews Description Down4sound 1 - 15 ported Flat Pack 15 ported subwoofer box - DIY single 15 ported subwoofer enclosure. 3.55 Cube Single 15" Enclosure 32Hz Tuning .75" Birchwood Natural finish. Subwoofer cutout - 13.75" Mounting Depth -14" 30 in W x 20 Depth x 16. 25 in H ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 10 Reviews 3 Pro fab box Posted by Leonard hart on Aug 18, 2025 The box is good for what it is my dbz 15 sounds great in it so I'm happy with it 5 DIY 15 FLATPACK Posted by Ontario Luckey on Mar 05, 2025 It was good equality and easy to put together 5 The best Posted by Willie on Jan 09, 2025 Everything arrived perfectly. I asked to have the cut out enlarged to 14”, and they did it! The box went together beautifully. My Avatar 15” subwoofer sounds great! Thanks for offering such a great product. 5 Single 15 box Posted by Unknown on Dec 17, 2024 Bad ass box. Absolutely luv the down 4 sound wood etching. 4 Great product Posted by David D on Sep 18, 2024 This is a great subwoofer box for people who want to build and paint or carpet to their own system requirements. My only issue is for people who don't understand how a is supposed to be built as there is no instructions included. I have build many boxes and was able to figure it out. I would recommend this product. 5 Sounds really good Posted by jameson c on Aug 03, 2024 I have been through 3 different prefab boxes and I wish I had known about these D4S diy packs from the beginning. The sound quality of the box is really nice and clean. It wasn't difficult to assemble either. 3 Flat pack box Posted by Dustin on Apr 23, 2024 It had pre drilled holes in spots that it shouldn't. They can be filled with wood putty or bondo and it will be fine. Very nice otherwise. 3 Flat pack box Posted by Dustin on Apr 23, 2024 It had pre drilled holes in the wrong spots but I can just pack the holes with wood filler or bondo and it will be OK. Still a good box. 5 Update WOW!!! Posted by Daniel Hall on Jan 26, 2024 This enclosure sound incredible!!!! Got a Resilient Sounds Platinum 15 D1 in it and it’s a great match if your on the fence go for it sounds amazing JP has got it figured out for sure. Thanks JP and down4sound team you guys are doing a great job and have amazing products. Enclosure is a 10 out of 10 hands down the best I’ve ever owned or used from others and half the price can’t brag enough on this enclosure love it… 5 Looks unreal Posted by Daniel Hall on Jan 22, 2024 Can’t wait to hear it got it put together and man it’s a really nice enclosure beautiful wood wish I could share a pic easy to put together just need glue and screws. If you’re looking for a good enclosure get this one u will be happy. Also great price View All Close

Description 5 Reviews Description Are you in the market for a top-quality ported 10 inch sub box flat pack? Look no further than our flat pack sub box, designed to give you the ultimate in flexibility and convenience when assembling your own subwoofer enclosure kit. Crafted from high-quality materials, our 10 inch sub box flat pack includes ALMOST everything you need to build a durable and long-lasting subwoofer enclosure kit, all without breaking the bank. The flat pack design makes it easy to assemble and customize your sub box to your exact specifications, so you can enjoy the perfect sound quality every time you hit the road. Whether you're a DIY enthusiast or a professional installer, our flat pack sub box is the perfect solution for upgrading your car audio system. With its superior design and easy-to-use components, you'll be amazed at how easy it is to achieve outstanding sound quality and deep, rich bass. So why wait? Order your DIY PROFAB 10 inch sub box flat pack today and experience the ultimate in convenience and performance. Our subwoofer enclosure kit is designed to meet your every need, with a customizable design and premium components that are built to last. Don't settle for anything less than the best - upgrade your car audio system with our flat pack sub box today! 1.25 Cube Single 10" Enclosure 32Hz Tuning .75" MDF Subwoofer cutout - 9 1/8" Mounting Depth -11.5" 21 width x 13 height x 15.75 length (INCH) all the pieces to build a box, except terminal, glue, and screws ****ALL SALES ARE FINAL**** View All Close 5 Reviews 5 10 inch flat pack Posted by Juan Roque on Jun 11, 2025 I was running a ORION HCCA 10 INCH SUBWOOFER I originally had a skar 10 inch pre fab and it was tuned a lil high 39 hz and ordered the D4S 10 inch inch flat pack and I'm totally impressed with the enclosure and my ORION sounds amazing in the D4S enclosure I highly recommend if your on a budget thanks to JP and D4S 5 What a great box! Posted by Sean Wagner on Feb 14, 2025 First thing, it does come with a terminal plate. Because it says it comes with everything but the terminal, glue & screws. Secondly it's very easy to put together. Glue all the edges very well. Have a wet rag on hand to wipe away the extra glue. Because these are make with wood thats nice enough to stain. That's what I do. They look fantastic! I have a dBz10 in my box. It's almost the perfect box for that subwoofer. It will play from the high 20hz range well up to 50-60hz. In that box the way it comes. With some port tweaking it might even be better. Need someone with more knowledge then me for that. Lol 5 Best bang for the buck! Posted by Vitaliy on Dec 22, 2024 Very nice box. Came packaged very well. Good quality wood. Nothing damaged or wrong with it at all, even came with the terminal cup which on the website says "sold separately". Overall i would highly recommend this enclosure to a person that's looking for a nice quality birch prefab box and isn't afraid of alittle work putting it together. 4 Pro fab flat pack Posted by Brett on Oct 18, 2024 Nice pro fab box!! my orion hcca 10 hits hard in this box powered by my jp 13.2ab amp!!! 5 Dimensions Posted by Alan Tavarez on Oct 16, 2023 Y’all can’t mention the dimensions?? View All Close

Description 7 Reviews Description Are you in the market for a top-quality from birch wood ported 12 inch sub box flat pack? Look no further than our flat pack sub box, designed to give you the ultimate in flexibility and convenience when assembling your own subwoofer enclosure kit. Crafted from high-quality materials, our 12 inch sub box flat pack includes ALMOST everything you need to build a durable and long-lasting subwoofer enclosure kit, all without breaking the bank. The flat pack design makes it easy to assemble and customize your sub box to your exact specifications, so you can enjoy the perfect sound quality every time you hit the road. Whether you're a DIY enthusiast or a professional installer, our flat pack sub box is the perfect solution for upgrading your car audio system. With its superior design and easy-to-use components, you'll be amazed at how easy it is to achieve outstanding sound quality and deep, rich bass. So why wait? Order your DIY PROFAB 12 inch sub box flat pack today and experience the ultimate in convenience and performance. Our subwoofer enclosure kit is designed to meet your every need, with a customizable design and premium components that are built to last. Don't settle for anything less than the best - upgrade your car audio system with our flat pack sub box today! 2.0 Cube Single 12" Enclosure .75" BIRCH WOOD 32Hz Tuning Subwoofer cutout - 11 1/16" Mounting Depth - 12.5" GRADE 8 terminal Cup 2.4ft3 GROSS VOLUME 25.6in2 PORT AREA SUBWOOFER BOX DIMENSIONS L x W x H: 22.5 x 17 x 15 INCH all the pieces to build a box, except terminal, glue, and screws ****ALL SALES ARE FINAL**** View All Close 7 Reviews 4 a good place to start, economical Posted by Mark Salisbury on Feb 24, 2026 I'm really happy with how it came out. as has been said, be careful on the corners, screws do overlap. So I ended up drilling out all the screw holes, when I started to screw it together the wood was splitting. drilling took care of that. I have a MMats pro audio 12" in it now. I'm really impressed, sounds better than my alpine prefab type r box, the type R box has a ton of port noise. No noise on this box. for $118 I don't think it can be beat. I also sealed all the edges inside with caulk to prevent any air leaks. Thanks JP!!! 5 Great BOX Posted by Victor on Oct 09, 2024 Super nice box! really impressed with the looks and sound! 5 12 inch DIY Flat Pack Posted by Juan Roque on Jul 28, 2024 Received flat pack no damage at all packed very well took less than 1 hour this enclosure sounds amazing and I especially like the 32hz tuning huge improvement from the previous prefab from ebay which had 43hz tuning thanks jp and d4s as a whole definitely recommend if your on a budget you'll be pleased for sure 4 Good quality box for cheap Posted by Phil on Nov 06, 2023 Box is good quality. Easy to put together just be careful on the corners cause the screws meet up and you’ll bust the box. Only complaint is it didn’t come with screws. 5 1 12" DIY flat pack box Posted by Laurants mccloskey on Sep 26, 2023 Yeah this is a good deal for sure. Need to be able to access my spare easily for a couple months so I took out my raised floor 2-12" sub custom box I built & threw 1 of the 12s in this thing after screwing, gluing & paint. It makes almost as much bass as the custom aeroport 2-12s box I built! Definitely tuned nice & low as well. You almost couldn't buy 1 3/4 4×8 sheet of birch at home d for 119... they were 109 when I checked before grabbing this. Certainly worth every penny! 4 Almost perfect Posted by Frank on Jul 06, 2023 My only problem is that the pre drilled holes on the corners intersect with each other and if you aren't careful you will punch a hole out the side of the box. 4 Single 12" flatpack Posted by Marcel on Jul 02, 2023 The pieces aren't cut exactly flush and I wish the mating surfaces were routed out so I wouldn't need a 90° jig. Also, it's only pre-drilled on the face so you're going to have to do some drilling. But for the price it's still pretty damn good. I've got a small overhang on one side that I can fix with sanding or my router. Everything else fit perfectly. I stained it and did a satin finish. I wish I could link a pic because it came out gorgeous. View All Close

Description Warranty Information 13 Reviews Description Are you in the market for a top-quality from birch wood ported 2 12 inch sub box flat pack? Look no further than our flat pack sub box, designed to give you the ultimate in flexibility and convenience when assembling your own subwoofer enclosure kit. Crafted from high-quality materials, our dual 12 inch sub box flat pack includes ALMOST everything you need to build a durable and long-lasting subwoofer enclosure kit, all without breaking the bank. The flat pack design makes it easy to assemble and customize your sub box to your exact specifications, so you can enjoy the perfect sound quality every time you hit the road. Whether you're a DIY enthusiast or a professional installer, our flat pack sub box is the perfect solution for upgrading your car audio system. With its superior design and easy-to-use components, you'll be amazed at how easy it is to achieve outstanding sound quality and deep, rich bass. So why wait? Order your DIY PROFAB 2 12 inch sub box flat pack today and experience the ultimate in convenience and performance. Our subwoofer enclosure kit is designed to meet your every need, with a customizable design and premium components that are built to last. Don't settle for anything less than the best - upgrade your car audio system with our flat pack sub box today! 4.0 Cube Dual 12" Enclosure Subwoofer cutout - 11 1/16" .75" Birch Wood 31Hz Tuning Mounting Depth- 15" Plastic terminal Cup Plastic Bag Foam Corners Double Wall Shipping Box Good for up to 3000w Rated Power (Any higher power than this and we highly recommend you get one of our custom hand built heavy duty enclosures) Designed by Bassahaulic Productions Down4sound DIY FLATPACK Profab 2-12 SUBWOOFER BOX DIMENSIONS L x W x H: 32.5 x 20 x 15.25 INCH all the pieces to build a box, except terminal, glue, and screws ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 13 Reviews 5 Box Posted by Brendan on Mar 29, 2024 Great box amazing quality Only thing is was missing the down 4 sound decal was not in the box 5 DIY flat pack 12 box Posted by james ziya on Mar 10, 2024 Box came in perfect condition and was delivered on time easy to assemble,not much to say but it’s one hell of a deal 5 Good Posted by Brian on Mar 08, 2024 So I ordered this box, inspected it no damage. But before I got to assemble i decided to convert this to a single sub box. So I went to Home Depot and had a 3/4 inch birch plywood cut the dimensions of the baffle. Assembly was easy. However there are no grooves for the pieces so you’re stuck holding the pieces for a few minutes while the glue hardens. Another thing is the actual pieces of wood aren’t numbered as the diagram shows so you’ll have to visual verify each piece before gluing. I used #8 1.5 inch premium wood screws. I painted the box with latex gloss black paint. I haven’t used yet so I can’t say how it sounds. I also used flex seal spray around all the edges to ensure no air leaks. I changed my mind on my setup this is why I chose to convert it to a single sub box. I plan on wiring the sub and strapping amps. Just a daily driver build no spl. 4 Not bad real wood maybe a little revision good price Posted by Jay on Jan 12, 2024 I purchased this, took at least a week to come in 7 to 10 days more like it. I guess that's to be expected because I'm on the east coast. Now as far as the quality goes, it seems like it's real wood and it's okay however, I would not just say that anyone could put this kit together you kind of have to know a little bit about woodworking and how things go together and you have to be careful so you don't chip or split anything or break pieces. Some of the pieces like the top and the bottom and the front with the speaker cutouts have pre-drilled holes not a few pieces like the side pieces and the port pieces have no pre-drilled holes some people might say that you can just glue the whole box together, but I wouldn't recommend that if you are using powerful subs that are fairly heavy, you always want to use screws too. So When putting the box together It does not include screws that would be a great addition so you wouldn't have to run to the store. However, I'm sure most people need screws to install the speakers I think the problem is some people might not know what they need for hardware. Now if you don't have the right hardware you can possibly damage the box crack and split the wood when trying to put it together. I picked up some #10 2-in flathead Phillips zinc coated screws at first went to install one and I did not drill a pilot hole first and the wood cracked now when I went to install a second screw I pre-drilled that time and the wood just about cracked so you got to be careful what size screw you use number 10 is too big also 2 in too long and it's not needed. I went back to the store and I picked up some #8 1-1/2 and I went with those They seem to work good. You could try to order some of these fancy SMD number 15 blackjack screws which I didn't try they might work out too. Now the important thing here is counter sinking and pre-drilling because only some of the pieces have pre-drilled holes. You have to make sure you go all the way through to the next piece so you have the drill the whole deeper into the next piece of wood You could do that with a regular drill bit however a countersink bit Is the proper way you want to sink the head into the wood for a cleaner look That's why the flathead screw is appropriate. You don't really want the heads of screws sticking out also, you don't want the wood to crack so pre-drilling through both pieces and countersinking helps with this. You want to make sure you go in enough with the bit for the countersink hole as well after the drill bit went all the way in I went in about halfway on the counter sink If you do this, you shouldn't have any problems. Overall, the box seems fairly solid once it's put together. However, like a few people have mentioned, the corner screws will intersect so you won't be able to screw into the factory holes on every corner you will have to drill your own hole in a couple of places and make sure you drill far enough away from the other screw so it does not hit it and you will be fine the box will still be sealed pretty good. One other thing is that If you try to screw down the port It is tricky once the top and the bottom covers are on and the thing is all glued in you kind of have to measure once maybe twice to be sure You want to double check before you start drilling holes because for the average Joe it could be easy to miss. So if you drill just a little to the left or a little to the right too much now you've got a tiny hole in your box at the top of the bottom and who wants extra holes. You probably don't have to screw down the port to the box on the top and the bottom but I figure it will add extra strength so I tried. Now the only other complaint was that the top part of the box that had the logo on it had a scratch going across it and the logo the wood inside it was kind of dark almost burnt like looking I might end up staining the whole box. 2 Dual 12 birch flat pack Posted by Andrew on Dec 31, 2023 Ok so I got my flat pack delivered in 2 days after ordering. Was well packed however the front baffle was warped and has a little crack by one of the sub cut outs. Also there's no pre drilled holes for the port pieces and the pre drilled holes on the corners are too close to the edge as well so I had to drill new holes so the screws wouldn't run into each other on the corners. Not to mention the plywood has multiple chips in it as well. Tried to return or exchange it for a new one but was told it's not returnable even though it was only opened and inspected and not assembled. So I said F it and assembled it. Enclosure came out decent however the 45s for the front baffle are to wide and actually block a little of the sub cut outs also the sub cut outs are 11" on the dot not 11 1/16 as described so have to modify this as well. Honestly wish I would have ordered a flat pack from Gatley or GP Audio instead. Live and learn I guess. I wouldn't recommend this to anyone. 4 Flat pack subwoofer enclosure Posted by Robert Glass on Dec 22, 2023 easy to put together finishing this week trying to put bed liner coat on it to make sure it is air tight 5 Awesome Posted by Ryan Kemmer on Dec 03, 2023 Very very happy with this. Real deal 13 layer birch. Quality is impressive. I have no complaints. (2) B2 riot 12’s on 1800 rms and it SLAMS. Definitely hits the lows. Was going to add a second baffle but once I finished and applied 2 coats of polyurethane, it’s definitely SOLID. Definitely build this with a couple long F clamps. In the end, there is nothing even comparable for the price I paid for this. It looks and sounds custom. 5 Flat pack box Posted by P.luis on Nov 03, 2023 Good quality and easy to assemble. Sounds good 5 Very happy with the box! Posted by Brian Burchett on Oct 20, 2023 Clean straight cuts. Good quality and it sounds great! The pre-drilled holes on the corners are too close to the corner so I drilled a couple holes of my own. Also high quality terminal cup! 5 2-12 diy flatpack Posted by Great diy! Almost cheaper than just the wood! on Oct 10, 2023 So I built this box, but added in an extra baffle so there'd be 2 layers at 1.5" on the baffle, left out the inside corners to try and have the. Tuning end up the same & it's awesome! You'll never get a better built box thatthan one you can reinforce yourself! Sounds frikkin awesome! Next View All Close

Description Warranty Information 12 Reviews Description Are you in the market for a top-quality from birch wood ported 2 15 inch sub box flat pack? Look no further than our flat pack sub box, designed to give you the ultimate in flexibility and convenience when assembling your own subwoofer enclosure kit. Crafted from high-quality materials, our dual 15 inch sub box flat pack includes ALMOST everything you need to build a durable and long-lasting subwoofer enclosure kit, all without breaking the bank. The flat pack design makes it easy to assemble and customize your sub box to your exact specifications, so you can enjoy the perfect sound quality every time you hit the road. Whether you're a DIY enthusiast or a professional installer, our flat pack sub box is the perfect solution for upgrading your car audio system. With its superior design and easy-to-use components, you'll be amazed at how easy it is to achieve outstanding sound quality and deep, rich bass. So why wait? Order your DIY PROFAB 2 15 inch sub box flat pack today and experience the ultimate in convenience and performance. Our subwoofer enclosure kit is designed to meet your every need, with a customizable design and premium components that are built to last. Don't settle for anything less than the best - upgrade your car audio system with our flat pack sub box today! Other Specifications on the 2 - 15 Flatpack Subwoofer Kit: WxHxD: 40 inches x 18.75 inches x 24.5 inches 6.58 cubes after displacement Tuning Frequency: 31 hz Port Size WxHxD: 5.5 x 16.5 x 31.5 inches Cutout is 13.88 ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 12 Reviews 5 What a great box. Posted by Sean Wagner on Feb 14, 2025 I wish I could post pictures of the box. It came out that good! I actually filled in all the screw holes & used Tite Bond 3 & brad nails from my brad nailer to put the whole box together. The subs im using are Avatar SVL 15's, I had to make the cut-outs a little bigger. But I only did it to the top plate. So the bottom plate had more wood for the screws to hold the subs in. I actually use 2" long ¼" lag bolts with washers to hold my subs inverted. I also made the port longer then it came. It was a good thing too. Because had I not it would have been tuned to like 40hz. Not 31hz like it is now. Thats with making the short inside port board like 3 times as long. It's better to go to long, as you can always cut it down later. That's what I did. 5 D4S Flat Pack Posted by Ryan S on Sep 20, 2024 To get a double baffle box for $250 if you have a little time and know how for another $25 in materials is not matched anywhere else! Can't beat it for the price and the terminal cup that's included is solid quality. The D4S logo is a nice added touch! 5 Flat pack dual DIY 15 inch subwoofer box Posted by Shaun dick on Jul 02, 2024 The package was easy to set up, box looks awesome completed. Took about an hour to fully complete. Fully solid no gaps. I cannot complain. I would recommend this for anyone and I was able to keep my third row in my yukon. 5 2- 15 birch flatpack Posted by Patrick Foreman on Apr 25, 2024 Contents were extremely well packaged and arrived very quickly. After inspecting the pieces, I was very pleased with the quality of work. Absolutely love the D4sound engraved logo, matches the sticker on back glass. My favorite was the 4 dum dum suckers, top notch customer care! As always it is a pleasure ordering from D4s. 5 Flat pack Posted by Nicholas McAlpin on Mar 11, 2024 This was my first build ever! I have to say it is the best way to learn how to build a top notch box! I even added threaded inserts just because it is worth it. Thanks JP! 4 Flatpack double 15 kit Posted by Dale Roberson on Sep 26, 2023 Overall worth every penny. For the price of wood and the time to make the cuts well worth it. Very clean and precise cuts. Did not find a bad cut both baffles were perfect. Only flaw is the wood itself. Some of the edges were chipped off but you can't expect perfection in shipping from NV to NC so overall bravo JP and d4s will definitely buy again!! 5 Excellent quality box Posted by Robert Welling on Apr 24, 2023 I just put this dual 15s box together and it was super fun and easy. I used 1 and 3/8 drywall screws and 2 inch drywall screws along with titebond 3 wood glue. Before I put the double baffle tip on I silicone the entire box at every seam so it will be completely sealed. I do highly recommend using drywall screws because they grip the wood super well. Don't use screws that have really fine threads. This was my first box build and it came out great. I highly recommend this box but do your homework and learn something first. 5 Really nice box Posted by cody nicholson on Apr 03, 2023 Opened up the shipping box and got all the pieces out and threw it together temporarily just to check it out and it looks awesome, sucks it didn’t come with a signature or any tshirt or even a back window sticker lol but love the box design 5 Awesome Posted by willie powers on Mar 13, 2023 Came two top pieces and all the inside corner pieces also the hole are pre drilled even comes with a nice terminal and terminal screw's 5 Awesome Posted by willie powers on Mar 13, 2023 Came with two top pieces and all the inside corner pieces also. The holes are pre drilled so it just follow the instructions. Next View All Close

Description Warranty Information 1 Review Description Create your own high-performance subwoofer enclosure with the Down4Sound PRO-FAB Birch Flat Pack Dual 6.5 , a DIY ported sub box crafted for exceptional sound quality and custom car audio projects. Designed for dual 6.5-inch subwoofers, this kit features a precision-engineered ported design that delivers powerful, resonant bass. Made from durable birch wood, it combines strength and superior acoustics to ensure a premium listening experience. With pre-cut pieces and easy-to-follow instructions, the Down4Sound PRO-FAB Birch Flat Pack makes building your subwoofer enclosure straightforward and rewarding. Whether you're a car audio enthusiast or just love hands-on projects, this flat pack offers everything you need to customize your sound system. Key Features: Custom Dimensions : Space-efficient design measuring 28" Width x 13.5" Depth x 8" Height , ideal for compact installations. Precision Engineering : Pre-cut birch wood panels ensure a perfect fit and easy assembly. Ported Design : Tuned to 34 Hz for powerful, deep bass performance. High Power Handling : Terminal rated for up to 2500W , perfect for high-output systems. Dual 6.5-Inch Compatibility : Accommodates two 6.5-inch subwoofers for a secure and optimized fit. DIY Kit : Comes with all necessary pre-cut components and detailed instructions for a seamless assembly experience. Specifications: External Dimensions : 28" Width x 13.5" Depth x 8" Height Tuning Frequency : 34 Hz Cutout Size : 6 inches Material : High-quality birch wood Power Handling : Terminal rated for 2500W Assembly Required : DIY kit with easy-to-follow instructions ALL SALES ARE FINAL View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 1 Review 4 flat pack Posted by Unknown on Jan 28, 2026 nice box easy to put together speaker holes a little big but no problem. Don’t understand why people complained about no instructions. Very easy to put together. Great for the price. I wish you made a box for a single kicker 8” square speaker View All Close

Description Warranty Information 0 Reviews Description Build your own high-performance subwoofer enclosure with the Down4Sound PRO-FAB Birch Flat Pack Single 10 , a DIY ported sub box designed for audio enthusiasts and DIY lovers. This flat pack includes pre-cut birch panels, precision-engineered to deliver incredible sound quality for a single 10-inch subwoofer. Featuring a ported design tuned to 32Hz, this enclosure ensures deep, resonant bass while allowing you to enjoy the satisfaction of assembling it yourself. Crafted from premium birch wood , this flat pack ensures durability, superior acoustics, and a long-lasting build. With detailed instructions and all necessary components included, the PRO-FAB 10 flat pack makes it easy to create a professional-grade subwoofer enclosure in the comfort of your home. Specifications: Internal Volume: 1.25 cubic feet Tuning Frequency: 32Hz Material: High-grade birch wood with a black bedliner finish (optional upon assembly) Subwoofer Cutout Diameter: 9 1/8 inches Mounting Depth: 11.5 inches External Dimensions (L x W x H): 19" x 15.5" x 13" Power Handling: Rated for up to 3000W Key Features: DIY Flat Pack Design: Pre-cut panels make it easy to assemble your own subwoofer enclosure with professional results. Premium Birch Wood Construction: Provides exceptional durability and enhanced acoustic performance compared to MDF. Ported for Deep Bass: Precision-tuned to 32Hz for powerful, resonant low-frequency response. Perfect for Budget Subwoofers: Compatible with 10-inch subs like Sundown Audio up to the U Series. (Not suitable for larger or more powerful subs such as X or ZV5 Series.) Customizable Finish: Add a personal touch with your preferred paint or coating to match your vehicle’s interior. View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 0 Reviews Description Down4sound - Single 8 Inch Ported Sub Box enclosure (PROFAB BOX) Take your DIY audio project to the next level with the Down4Sound PRO-FAB DIY Flat Pack, tailored for a single 8-inch subwoofer. This ported enclosure kit is precision-engineered to deliver deep, accurate bass and is crafted from premium materials for durability. With pre-cut panels and a straightforward assembly process, this enclosure is perfect for enthusiasts looking to build their own high-performance subwoofer box. Compatibility: Fits one 8-inch subwoofer Material: High-quality construction for optimal sound performance Dimensions: 11.5" Depth x 24" Width x 9.75" Height Tuning Frequency: 34 Hz Cutout Diameter: 7.36 inches Terminal Rating: 1000W Internal Volume: 1 cubic foot (after displacement) Assembly Required: Yes – DIY kit with pre-cut pieces and easy-to-follow instructions Ideal For: DIY builders looking to customize their sound system with a single 8-inch subwoofer enclosure ***ALL SALES ARE FINAL*** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 4 Reviews Description High performance and extreme sound, that's what you can expect from Down4sound's "PRO-FAB HD3" Single 12 Inch Ported Subwoofer HD Birch Enclosure. With a THICK triple baffle design, this enclosure has been specially crafted to handle the planet’s biggest and baddest 12 inch subwoofers and all the power they come with. If you are looking for a lightweight but extra strong solution that drives great sound quality for your in-car audio system - then look no further! The PRO-FAB HD3 enclosure is perfect for all automotive sound enthusiasts who want to be on the DEEP BASS every time. Finished with a kerf port for a smooth look and amazing acoustic experience, this enclosure has been engineered to kick it up a notch when it comes to sounding loud and true! SINGLE 12 HD3 SIZE: Width: 27 ½" Height: 16 ½" Depth: 23" VOL-Net size, after displacements, 2.52 Cubes SINGLE 12 HD3 Port size. Width: 2 ¾" Height: 13 ½" Depth: 22" Tuning frequency based off actual port: 31.5Hz CUTOUT hole size: 11.09 inch Fits Sundown Audio X, Z series subwoofers. triple layer is on baffle, thick double layer on all the rest ALL SALES ARE FINAL View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 4 Reviews 5 Hd3 12" box Posted by Big country on Apr 24, 2023 Very nice solid Box 5 HD3 box is amazing Posted by Ali Degirmencioglu on Apr 18, 2023 All I can say is wow, hits low and hard, the bass coming from this box is deep. I have an xv3 12 on a jp33 and could be happier. Very good build quality. My only complaint is that one of the corners were dented when I received it, but that could be because of shipping. If anyone is wondering, this box WILL fit in a Honda civic, just takes a lot of effort. 5 Heavy box Posted by Mike Woomer on Apr 15, 2023 Awesome box. Running a NSv5 and it is absolutely made for it (22-45) hz is almost painful, hair trick with 1 12!!! 5 Good box. Posted by Izzy on Mar 18, 2023 Needs a decent amount of space as in dimensions. But performs great. If you need to know it will fit in a q50 perfectly and i mean with no space on either side. View All Close

Description Warranty Information 0 Reviews Description Down4sound PRO-FAB HD3 15 | 1 15 Sub Box | Single 15-Inch HD Ported Subwoofer Enclosure Box High performance and extreme sound, that's what you can expect from Down4sound's "PRO-FAB HD3" Single 15 Inch Ported Subwoofer HD Birch Enclosure. With a THICK triple baffle design, this enclosure has been specially crafted to handle the planet’s biggest and baddest 15 inch subwoofers and all the power they come with. If you are looking for a lightweight but extra strong solution that drives great sound quality for your in-car audio system - then look no further! The PRO-FAB HD3 enclosure is perfect for all automotive sound enthusiasts who want to be on the DEEP BASS every time. Finished with a kerf port for a smooth look and amazing acoustic experience, this enclosure has been engineered to kick it up a notch when it comes to sounding loud and true! Single 15 HD3 SUB BOX ENCLOSURE SIZE: Outside Dimensions: Width: 36 ½" Height: 16 ½" Depth: 29" VOL-Net size, after displacements, 4.55 Cubes Port size. Width: 5¼" Height: 16 ¼" Depth: 29" Tuning frequency based off actual port: 32Hz CUTOUT Hole Size:13.09 inch Fits Sundown Audio X, Z series subwoofers. triple layer is on baffle, thick double layer on all the rest. ALL SALES ARE FINAL View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information 9 Reviews Description Experience Extreme Sound with the PRO-FAB HD3 Dual 2 12 Inch KERF Ported Subwoofer HD Birch Enclosure Are you craving high-performance audio and extreme sound quality? Look no further than Down4sound's PRO-FAB HD3 Dual 12 Inch Ported Subwoofer HD Birch Enclosure. Designed to deliver unmatched power and precision, this enclosure is built to handle the biggest and baddest 12-inch subwoofers with ease. Unleash the Power: With its THICK triple (3-layer) baffle design, the PRO-FAB HD3 is engineered to handle the immense power that comes with large subwoofers. Experience mind-blowing bass and crystal-clear sound like never before. Lightweight and Durable: This enclosure offers the perfect balance between lightweight construction and extra strength. Its innovative design ensures a powerful and dynamic audio experience without compromising on durability. Engineered for Deep Bass: The PRO-FAB HD3 is the ultimate choice for automotive sound enthusiasts who crave deep bass with every beat. Take your in-car audio system to the next level and feel the music reverberate through your entire being. Sleek and Acoustically Superior: Finished with a kerf port for a smooth appearance and incredible acoustic performance, this enclosure is the epitome of style and substance. It has been meticulously engineered to deliver loud and true sound. Built for Audiophiles: If you're a true audiophile, the PRO-FAB HD3 is your dream come true. Immerse yourself in an audio journey like never before, and hear your music in all its glory. Elevate Your Audio Experience: Say goodbye to average sound quality and upgrade to the PRO-FAB HD3 Dual 12 Inch Ported Subwoofer HD Birch Enclosure. Let the music speak for itself and elevate your in-car audio to new heights. Get ready to rock your ride with extreme sound – get the PRO-FAB HD3 today and make every drive a musical adventure! DUAL (2) 12 HD3 SUB BOX ENCLOSURE technical information: Outside Dimensions: Width: 37" Height: 17" Depth: 29" VOL-Net size, after displacements, 4.96 Cubes Port size. Width: 5 ½" Height: 14" Depth: 23 ½" Tuning frequency based off actual port: 32Hz CUTOUT Hole Size: 11.09 inch Fits Sundown Audio X, Z series subwoofers. triple layer is on baffle, thick double layer on all the rest ALL SALES ARE FINAL View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 9 Reviews 5 Exceeds expectations Posted by brett humphus on Mar 25, 2025 This box is amazing! Running Sundown Audio Zv3’s. They pound! 5 2 12 box Posted by Charlie story on Dec 26, 2024 I have the new d4s 12s dvx in this box underpowered on a skar 2000 amp and it hits the lows really good 5 Box Posted by Jorge Rodríguez on Feb 27, 2024 When are you guys gonna have more trying to order one with two of your xv3 sundowns subs 5 Bass hits hard Posted by Edvin Martell Hopkins on Dec 24, 2023 Shipping had damaged corners from it being heavy 4 Sub Box damaged Posted by Joseph Krohn on Nov 04, 2023 Accidentally bought the wrong size box. Super heavy duty but it came damaged on one corner. Not terrible but noticeable and crushed on the corner. 5 beefy Posted by Brian on Jul 28, 2023 Beefy box with strong wood. Its bigger than the picture looks. And it is about 75 pounds empty so plan accordingly. The cutout was slightly too small for my subs so I had to sand 1mm from the cutout. Best box I ever purchased. Note it only has one negative and one positive post so if you have two dual 2 ohm subs you will need to wire them to 2 ohm and strap your amps if it is not .5 ohm stable. 5 Beast of a box Posted by Cole Blakeney on Apr 24, 2023 Just got one of these for my 2 ZV612’s and honestly after seeing how beefy it’s built and it’s alone weight it’s a beast of a box for the money and free shipping you really can’t beat that. 5 Good quality and solid Posted by Marcello on Apr 12, 2023 This box makes my x12 v3's sound so good with deeep bass and no flex. I would definitely recommend it. 5 2 12 subwoofer enclosure Posted by Mike Seldomridge on Mar 06, 2023 Very solid and well built enclosure, worth every penny! View All Close

Description Warranty Information 10 Reviews Description Single 12 Inch KERF-Port Sub Box Enclosure - Down4sound PRO-FAB V2 KERF 1-12 NEW v2 Prefab aka PROFAB single 12 kerf ported sub box enclosure is made from top-of-the-line materials that are designed to withstand even the most intense vibrations and frequencies. The birch wood construction and double baffling ensure that your subwoofer is mounted securely and safely, while the thick 4x poly-armor coating adds an extra layer of protection against scratches, dings, and other types of damage. Upgraded terminal cup, Unmatched Power and Performance With a maximum pure power rating of 2,500 watts, our PROFAB V2 KERF PORT subwoofer enclosure is capable of delivering some serious bass. Whether you're listening to music, demoing, or just on a long drive jamming, our subwoofer enclosure will provide you with the deep, rich sound that you've been missing. Version 2's Terminal Cup is square and is made from strong ABS plastic and grade 8 nuts and bolts, so you can be sure that your subwoofer is securely attached to the enclosure at all times. Perfect Fit for Most Subwoofers Our KERF ported box is designed to handle most beginner through intermediate subwoofers up to 45 pounds each with no problems, including the Sundown subwoofers up to the U series. However, some subs may require sanding or widening of the hole cutout to fit, so be sure to check the measurements of your sub and the hole cutout before making a purchase. L x W x H: 22.5 x 17 x 15 INCHES Hole Cut Out: 10 7/8" Tuning frequency based off actual port: 32.75Hz Net size, after displacements, 1.82 Cubes WILL NOT WORK FOR SUNDOWN X, ZV , NS OR TEAM SERIES SUBS. The cutout is to small, the airspace is to small and the box is not heavy duty enough for those monstrous / ultra powerful subwoofers. ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 10 Reviews 5 100% recommend this Box. Posted by Thomas Boone on Mar 14, 2026 I had a SPL Box 38Hz it sounds really punchy. This 32Hz Box is Crazy Good so Much Air flow. I got two them. I repeat don’t hook a sundown X, Z,Y, to this box will break it Once you play that first note. 5 12 kerf enclosure Posted by Nate on Oct 17, 2024 Wrong box was sent! but Chelcie was so helpful getting me squared away. Once I got it loved the quality of the enclosure just as nice as the V1 but better! Now I’m trying to install everything a bassheads dream fun! I will always continue to do business love their stuff!! 5 Kerf port pro fab 12 inch box Posted by David L on Aug 24, 2024 Not sure as to how the box sounds yet. I haven't order the sub for it yet. BUT SOON!! As far as looks and over all build it seems solid. Very well built. My only grumble is the coating comes off kinda easy. I hit the edge and it chipped right off. My own fult however I figured it would be tougher with that coating. Love the Down 4 Sound engraved into the box too. Nice touch to represent what make my car sound awesome. 5 Sub box Posted by Tom Jordan on Jul 06, 2024 It is a great box very well built love it 5 V2 12in Profab Box Posted by A. Martin on Oct 05, 2023 I was a little skeptical about ordering this box but I'm so glad I did because it has the lowest bass I've heard from a single 12in..I have a Rockford Fosgate t0 12 paired with a r1200x1 fosgate amp @ 2ohm pushing about 875 watts in a 72 monte carlo trunk and you would think I have 2 massive 15s in the trunk the way the bass carries and gain is not even set at half mark! Entire system is fosgate with 500x4 on t-series 6x9s ,6.5s, and 3.5s!! The v2 kerf box makes the system come together like a concert no matter what song I play!! Of course I did big 3 wire upgrade along with 2 Optima yellowtop batteries for clean power! Shout out to JP and d4s for this box that came wrapped and secured from damage!! 5 “Pro fab” box Posted by Byron on Sep 05, 2023 This box was the first time I ordered a box that my sub didn’t come in and I was really just taking a shot in the dark, all I had to go off of was the 4 reviews on this website. Let me tell you, night and day difference.. I have a skarSVR in it, and the box that the sub came in originally was decent but I felt like it was a little small, and I was looking to go deeper without going up to a 15.. just this box alone made it sound like I upgraded the entire setup, louder, deeper, and even more clean. Hell of a box I would def recommend to anybody looking for something besides ghe prefab your sub came with 5 Box Posted by Shawn Weldon on Jun 01, 2023 Love it 5 Really great sounding box Posted by Michael Engles on Mar 07, 2023 This box looks and sounds great. Much much better than your average Amazon prefab box, and not much more expensive. Worth every penny 5 Pro Fab V2 Posted by Rekrap on Nov 24, 2022 Good wood , lightweight and strong I like the finish on it too - solid low tuned box sounds awesome. Only downside is you have to cut the cutout bigger for most subs. The V1 had a bigger cutout - that’s the only downside - otherwise ya, it’s a double baffle low tuned kerf port that sounds phenomenal with the right sub! I have an ssa zcon 12 in it and it absolutely murders my Tahoe on 1800w. Buy it! 5 Kerf-Port Box single 12" Posted by Matt M. on Sep 29, 2022 What a nice Birch box. The construction is great. The sound is amazing. Tuned property. I put wood sinkers with screws since I don't want to damage or strip the wood. View All Close

Description Warranty Information 24 Reviews Description Dual 12 Inch KERF-Port Sub Box Enclosure - Down4sound PRO-FAB V2 KERF 2-12 Enhance Your Car Audio System with the PROFAB V2 KERF PORT Subwoofer Enclosure Discover the ultimate addition to elevate your car audio system's sound quality – the Dual 12 Inch KERF-Port Sub Box Enclosure, designed by Down4sound PRO-FAB V2 KERF 2-12. Crafted with precision and ingenuity, this subwoofer enclosure is optimized for outstanding bass performance. Experience Refined Bass: The KERF port featured in our enclosure ensures efficient sound wave dispersion, resulting in a refined and accurate bass experience. Say goodbye to muddy and distorted sound, and embrace crystal-clear audio. Built for Durability: Constructed with high-quality birch wood and a double baffled design, this enclosure minimizes vibrations and delivers an enhanced sound experience. It can handle up to 45 pounds per subwoofer, making it perfect for even the most robust subwoofers. Robust Protection: The PROFAB BOX boasts a thick poly-armor coating, providing extra strength and protection for long-lasting performance. Our square terminal, crafted from ABS plastic and grade 8 connection hardware, guarantees a secure and reliable connection for your subwoofers. Unmatched Versatility: Our subwoofer enclosure is fully customizable to suit your car audio system's unique requirements. Easily sand or widen the hole cutout to match your subwoofer's specifications. Its sleek and stylish design allows for effortless installation and removal, offering the flexibility to switch between subwoofers as needed. All-Weather Endurance: Designed to withstand extreme weather conditions and temperature changes, this enclosure is the ideal choice for any vehicle. Enjoy your music wherever you go, without worrying about environmental challenges. Upgrade Your Audio Experience: Elevate your car audio system's sound quality with the PROFAB V2 KERF PORT subwoofer enclosure. Unleash powerful bass and immerse yourself in an audio adventure like never before. Unlock the full potential of your car audio system – get the Dual 12 Inch KERF-Port Sub Box Enclosure now! Tuned to 32Hz HOLE CUTOUT: 10 7/8 INCHES fits most subwoofer cutouts Dimensions : L x W x H: 34.5" x 20" x 16" 4.0 Cube Dual 12" Enclosure: TOTAL Net size, after displacements: 3.73 Cubes WILL NOT WORK FOR SUNDOWN X, ZV , NS OR TEAM SERIES SUBS. The cutout is to small, the airspace is to small and the box is not heavy duty enough for those monstrous / ultra powerful subwoofers. ****ALL SALES ARE FINAL**** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 24 Reviews 5 Pro fab v2 box Posted by Adam Plummer on Mar 25, 2026 Great build quality, sounds great 3 I want this Posted by Gerald on Nov 20, 2025 I buy my amps from here and I need this box and can I get it without the black coating I need to stain to mach my car if not I will still get the coated one when this is back in stock let me know I have to get a box soon it this or a true spec box 5 Enclosure Posted by Joshua Smith on Aug 21, 2025 Excellent sound quality 5 Badass box Posted by Tyler Russell on Aug 11, 2025 Perfect fit from my car i love it 4 Pro-Fab V2 12 Posted by Dale on Jun 07, 2025 Awesome looking enclosure and very solid. This is going in my sons 2020 Malibu with 2 Rockford Fosgate P3’s powered by Rockford Fosgate R2 1200X1 @ 1ohm giving 600watts rms to each sub. Only downside, if you are using the P3’s you won’t be able to fit the rings. The subs are so close together the outer part touches so no room at all to install the rings. I would recommend asking them to move the cutouts another 1in if possible. 5 Really good prefabricated enclosure! Posted by Matt on Sep 29, 2024 I highly recommend this for anyone starting out in car audio and not wanting to build an enclosure. Currently, I am using this with two American Bass Elite 12s on an Audio Apex CAB-22. It plays from 25hz all the way to around 55hz. I had to use a ratchet strap and two heavy duty suction cups to keep the rear doors from moving as much. 3 Nothing special Posted by Shawn Robertson on May 23, 2024 With a $500 MSRP and a $300 price on sale I was expecting more than just a run of the mill prefab. The box came with a dent on one the face boards that hold the subwoofer panels and it is pretty obvious it was just sprayed over and wasn't a shipping problem. There are multiple runs in the coating and the coating isn't thick enough to hide the seams. The sub cutouts are slightly misaligned and are at least a 1/4" wider than spec's which is an issue I'll have to work around for my subs. The sub mounting are is nice and thick but unfortunately it is attached in the box instead of over the supporting walls. The logo looks cool but unfortunately it is upside down if you have your speakers pointing up. A speaker lead pre-wired in the box would have been nice. I haven't had a chance to hear it yet because I have to buy additional parts to have a good secure mounting surface. Hopefully it makes my subs sound better than the $200 skar box it is replacing and I can come back and say it was all worth it but I'm pretty disappointed now 5 Best Bang For Your Buck! Posted by Marco Perez on Mar 19, 2024 This enclosure is amzing & well built for the price...My favorite features is the double baffle & kerf port. I highly recommend for a entry to mid level sub duo. 5 Very Nice PreFab Posted by Brandon Thelen on Feb 06, 2024 First of all the box is awesome quality and mine arrived undamaged unlike quite a few other reviews. It's A little small on the cubic feet. It was too small for my TXX-BDC4S they got way louder in my Q-bomb box with a huge port. So I don't think any heavy or large subs that require air space would sound "loud" in this box. BUT i ended up putting my Girls P3s in this box and put in her 2020 Malibu on 800 watts and let me tell you this thing BEATS! I'm very impressed her windshield flexes. It's double baffled and has bracing. Awesome box for a trunk for sure. I upgraded to a custom built 2.5 per side box with 2 vfx 12s on an RP4500 in my jeep and it's loud, and these P3s in this box still impress the hell outta me every time I take her car. Only improvement would be a wider port and larger box. They have a bigger triple baffle box but it was way to expensive for me. 1 POOR QUALITY PREFAB‼️ Posted by Cesar Menchaca on Jul 11, 2023 This is going to be that review that’ll probably get denied but let me save y’all money from buying this I couldn’t be more disappointed and pissed off Re writing an update on this box since i barley purchased this prefab back in march 2023, where do I even start lmao this box didn’t even last a year nor past 5 months. The box is still in its shape no physical damage but rattles like crazy even at very low volume. I thought my subs were blown but the sound is coming from this box and sounds like absolute shit. Not even the prefab I had before this one did that lol. NO I didn’t put an overweight sub than the required specifications for this box, I had 2 American bass XFLs and this box couldn’t even handle them decent weight subwoofers like this box falsely advertised . also I had to over sand the cut outs to make my subs fit. NO THEY DONT FIT MOST SUBS‼️the design is nice but the quality was never there. 100% regret wasting my money on this box now I have a custom enclosure being built to replace this shit. Im done buying from D4S y’all overhype your products too much when the quality isn’t there? Next View All Close

Description Warranty Information 0 Reviews Description DOWN4SOUND - RECONE KIT | TCX-10D2 These are standard drop-in recone kits ONLY. View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 0 Reviews View All Close

Description Warranty Information Additional Information 5 Reviews Description Elevate your car audio system with the DOWN4SOUND SB-10 Subwoofer, designed to bring precise, deep bass and exceptional clarity to your setup. With a dual 2-ohm voice coil configuration and 500W RMS power handling, this subwoofer delivers a perfect balance of performance and durability in a compact footprint. Engineered with a highly optimized suspension and robust motor system, the SB-10 D2 provides clean, accurate, and impactful bass for daily use or high-performance builds. Key Features 500W RMS power handling Dual 2-ohm voice coil configuration 2.5-inch high-temperature voice coil 21 mm one-way Xmax Highly optimized suspension Compact, high-output design Technical Specifications (T/S Parameters) Revc (DC Resistance): 4.030 ohm Resonance Frequency (Fs): 37.717 Hz Qms: 3.510 Qes: 0.486 Qts: 0.427 Mms (Moving Mass): 158.478 g Cms (Compliance): 158.882 μm/N Rms: 0.740 Vas: 25.653 L Sd: 333.654 cm² BL Product: 16.190 T·m Sensitivity (SPL): 84.1 dB Xmax: 21 mm Displacement: 0.09 cu ft Engineering and Construction Optimized suspension for accurate sound reproduction Vented motor for improved cooling Precision-wound 2.5-inch voice coil Durable cone and surround assembly for long-term reliability Compact motor structure optimized for output and control Recommended Enclosures Ported: 1.0 cu ft (net) Port Area: 15 sq in Tuning: 35 Hz Sealed: Not recommended Physical Dimensions Cutout Diameter: 9.02 in (229 mm) Outside Diameter: 10.28 in (261 mm) Mounting Depth: 6.46 in (164 mm) Motor Height: 3.54 in (90 mm) Net Weight: 21.9 lbs Gross Weight: 25.2 lb Why You Should Buy Strong 500W RMS performance Accurate and controlled bass reproduction Dual 2-ohm coils for flexible wiring Durable construction for long-term reliability Compact size ideal for space-limited installs Ideal Applications Daily-driven systems needing clean, solid low end Ported enclosures offering strong output and accuracy Small-to-mid-size vehicle installs Users seeking dependable performance without sacrificing space View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: SB Ohm: 2 Subwoofer Size: 10 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 5 Reviews 5 These little monsters slap Posted by David Alexander on Feb 13, 2026 I have 3 d4s sb10 d2 wires to 1.3 ohms on a stinger mt1500.1 in a 3.60 cu.ft. enclosure and let me tell you they slap. Every impressive 3 tens. Sounds like a marching band Iin the trunk of a 2000 Ford Taurus. Wish I could upload pics 5 They are heavy bangers Posted by David Alexander on Jan 20, 2026 Got 2 waiting for number 3 ....gonna build a 3.54 cu.ft. enclosure and I know they are gonna BEAT the STREETS...I CANT WAIT....JUST A COUPLE OF WEEKS 5 DOWN4SOUND SB 10" SUBWOOFER - 2 OHM DVC | 500W RMS Posted by Tron on Oct 27, 2025 Sounds great. A real budget banger. 5 10in. Sb dual 2 ohm woofer Posted by Gee on Aug 24, 2025 Have 2 10in dual 2 ohm in a custom ported under seat box. Very well made great sounding woofers I ever owned. And handles more than 500rms can't beat them for the price. 5 Clean Posted by WillieD on Mar 25, 2025 Clean bass for a budget banger. Nicely stitched, with a cool boot. It sounds great in a Skar 1.4 cu ported box, tuned to 38hz. So happy! View All Close

The Down4Sound DOWN4SOUND SB 10" SUBWOOFER - 4 OHM DVC | 500W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=37.717Hz, Qts=0.427. Maximum linear excursion (Xmax): 21mm. Designed for deep bass reproduction and high SPL output.

Description Warranty Information Additional Information 2 Reviews Description Experience the perfect blend of power and precision with the DOWN4SOUND SB-12 Subwoofer, designed for enthusiasts who crave deep, clean bass. Featuring a dual 2-ohm voice coil configuration and 500W RMS power handling, this subwoofer is optimized for versatile setups and delivers consistent, reliable low-frequency performance. Its durable construction ensures long-lasting use in any car audio system. Key Features 500W RMS power handling Dual 2-ohm voice coil design 2.5-inch high-temperature voice coil 21 mm one-way Xmax Highly optimized suspension system Versatile design for a wide range of installs Technical Specifications (T/S Parameters) Revc (DC Resistance): 4.030 ohm Resonance Frequency (Fs): 29.296 Hz Qms: 3.622 Qes: 0.550 Qts: 0.478 Mms (Moving Mass): 235.540 g Cms (Compliance): 125.928 μm/N Rms: 0.768 Vas: 46.407 L Sd: 510.071 cm² BL Product: 17.824 T·m Sensitivity (SPL): 85.1 dB Xmax: 21 mm Displacement: 0.15 cu ft Engineering and Construction Optimized suspension for controlled, accurate bass Vented motor for improved thermal performance Precision-wound 2.5-inch voice coil Durable cone and surround assembly Compact, efficient motor structure Recommended Enclosures Ported: 1.75 cu ft (net) Port Area: 26 sq in Port Tuning: 35 Hz Sealed: Not recommended Physical Dimensions Cutout Diameter: 10.87 in (276 mm) Outside Diameter: 12.44 in (316 mm) Mounting Depth: 6.81 in (173 mm) Motor Height: 3.54 in (90 mm) Net Weight: 22.05 lb Gross Weight: 26.4 lb Why You Should Buy Strong, clean bass performance Durable construction built for daily use Flexible dual 2-ohm wiring options Accurate, reliable low-frequency reproduction Ideal Applications Ported enclosures for deep, clean bass SUVs, sedans, trucks, and hatchbacks Space-efficient high-performance builds Users seeking dependable, accurate low-frequency output View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: SB Ohm: 2 Subwoofer Size: 12 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 2 Reviews 5 Great Posted by Clarence Thurmond on Sep 12, 2025 This is a beast will be ordering another one paired with a jp8 5 SB 12 D2 Posted by Trey on Mar 20, 2025 Ordered the SB 12 paired with a mm1005 for my daughters car. Extremely impressed with both the subwoofer and amplifier! 2 cubes 32hz 1 4in aero and it gets down on only 500wrms. Excellent sound quality from doors and bass! She loves the purple amplifier aswell lol. View All Close

The Down4Sound DOWN4SOUND SB 12" SUBWOOFER - 4 OHM DVC | 500W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=29.89Hz, Qts=0.516. Maximum linear excursion (Xmax): 21mm. Designed for deep bass reproduction and high SPL output.

Description Warranty Information Additional Information 1 Review Description Elevate your car audio system with the DOWN4SOUND SB-15 Subwoofer, crafted to deliver deep, precise bass and exceptional clarity. Designed with a dual 2-ohm voice coil configuration and 500W RMS power handling, this subwoofer is built for high-performance setups that demand durability and top-tier sound quality. Its optimized suspension and robust motor structure ensure strong, accurate low-frequency output for daily or demo-focused builds. Key Features 500W RMS power handling Dual 2-ohm voice coil configuration 2.5-inch high-temperature voice coil 21 mm one-way Xmax Highly optimized suspension Designed for high-performance systems Technical Specifications (T/S Parameters) Revc (DC Resistance): 2.03 ohm Resonance Frequency (Fs): 30.87 Hz Qms: 4.132 Qes: 0.825 Qts: 0.689 Mms (Moving Mass): 271.1 g Cms (Compliance): 83.11 μm/N Rms: Not specified Vas: 91.18 L Sd: 855.29 cm² BL Product: 16.42 T·m Sensitivity (SPL): 87.0 dB Xmax: 21 mm Displacement: 0.19 cu ft Engineering and Construction Optimized suspension for accurate low-frequency reproduction Vented motor for improved cooling Precision-wound 2.5-inch voice coil Durable cone and surround assembly Robust motor designed for consistent high-output performance Recommended Enclosures Ported: 3.0 cu ft (net) Port Area: 44 sq in Port Tuning: 35 Hz Sealed: Not recommended Physical Dimensions Cutout Diameter: 13.62 in (346 mm) Outside Diameter: 15.51 in (394 mm) Mounting Depth: 8.01 in (203.5 mm) Motor Height: 3.54 in (90 mm) Net Weight: 23.3 lb Gross Weight: 25.5 lb Why You Should Buy Powerful low-end performance Dual 2-ohm wiring flexibility Durable, long-lasting construction Designed for precise, impactful bass reproduction View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: SB Ohm: 2 Subwoofer Size: 15 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 1 Review 5 Down for sound SB 15 inch subwoofer Posted by Randy Paige on Mar 07, 2025 Good sound quality nicely engineered good quality parts for the price it's excellent View All Close

The Down4Sound DOWN4SOUND SB 15" SUBWOOFER - 4 OHM DVC | 500W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=31.067Hz, Qts=0.771. Maximum linear excursion (Xmax): 21mm. Designed for deep bass reproduction and high SPL output.

Description Warranty Information Additional Information 0 Reviews Description Unleash the power of precise bass performance with the DOWN4SOUND SB-8 Subwoofer, crafted for car audio enthusiasts who value clean, impactful sound in a compact footprint. Featuring a dual 2-ohm voice coil configuration and true 500W RMS power handling, this 8-inch subwoofer is optimized for versatile installs, tight spaces, and high-performance daily systems. Engineered with a refined suspension and durable motor structure, the SB-8 D2 delivers reliable, accurate, and punchy bass. Key Features 500W RMS power handling Dual 2-ohm voice coil configuration 2.5-inch high-temperature voice coil 21 mm one-way Xmax Highly optimized suspension Compact design ideal for tight installations Technical Specifications (T/S Parameters) Revc (DC Resistance): 3.800 ohm Resonance Frequency (Fs): 37.054 Hz Qms: 3.098 Qes: 0.582 Qts: 0.490 Mms (Moving Mass): 125.0 g Cms (Compliance): 139.651 μm/N Rms: Not specified Vas: 9.016 L Sd: 210.106 cm² BL Product: 14.171 T·m Sensitivity (SPL): 80.3 dB Xmax: 21 mm Displacement: 0.07 cu ft Mounting Depth: 4.98 inches Engineering and Construction Optimized suspension for accurate sound reproduction Vented motor for cooling efficiency Precision-wound 2.5-inch voice coil Durable cone and surround assembly Compact motor optimized for tight-space performance View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: SB Ohm: 2 Subwoofer Size: 8 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

The Down4Sound DOWN4SOUND SB 8" SUBWOOFER - 4 OHM DVC | 500W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=39.62Hz, Qts=0.543. Maximum linear excursion (Xmax): 21mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound DOWN4SOUND TCX 10" SUBWOOFER - 1 OHM DVC | 2700W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=39.973Hz, Qts=0.41. Designed for deep bass reproduction and high SPL output.

Description Warranty Information Additional Information 1 Review Description DOWN4SOUND TCX-10 D2 – 2700W RMS High-Output Dual 2-Ohm Car Audio Subwoofer The DOWN4SOUND TCX-10 D2 is engineered for builders who demand maximum output from a compact 10-inch subwoofer. Designed for high-current systems and aggressive use, this subwoofer delivers a staggering 2700W RMS while maintaining control, thermal stability, and long-term durability. Built around a 3-inch 8-layer flat aluminum voice coil, carbon fiber cone, and a heavy-duty 5-stack Y35 ferrite motor, the TCX-10 D2 is optimized for dual 2-ohm wiring, extreme excursion, and sustained high-power play. This is not a casual 10-inch sub — it is a compact weapon for serious systems. Key Features 2700W RMS power handling Dual 2-ohm voice coil (D2) 3-inch 8-layer flat aluminum voice coil Carbon fiber cone for rigidity and low distortion 33 mm one-way Xmax Heavy-duty 5-stack Y35 ferrite motor Stitched high-roll surround Triple-spider suspension system Fully vented motor, basket, and backplate for enhanced cooling Technical Specifications (T/S Parameters) Resonance Frequency (Fs): 39.76 Hz Qms: 4.011 Qes: 0.678 Qts: 0.582 Moving Mass (Mms): 430.2 g Compliance (Cms): 37.80 µm/N Vas: 7.07 L Sd: 113.41 cm² BL Product: 28.58 T·m Sensitivity (SPL): 80.5 dB Xmax: ~33 mm (one-way) Displacement: 0.23 cu ft Engineering and Construction Extended pole piece for improved linear control Dual flared pole vent to reduce air turbulence Fully vented motor structure for maximum thermal efficiency Triple-spider suspension for stability under extreme excursion Precision-wound 3-inch 8-layer flat aluminum voice coil for high-current handling Carbon fiber cone minimizes flex under extreme load Built to survive high power, long play sessions, and real-world abuse without loss of control or reliability. Recommended Enclosure Ported enclosure volume: 1.25 – 1.75 cu ft Recommended tuning frequency: 34 Hz Optimized for tight, aggressive bass in compact enclosures Physical Dimensions (Key Installation Specs) Cutout Diameter: 10.03 in (255 mm) Overall Diameter (Top Gasket): 11.42 in (290 mm) Mounting Depth: 11.50 in (292 mm) Motor Diameter: 10.28 in (261 mm) Net Weight: 97.66 lb Gross Weight: 102.5 lb Why You Should Buy True 2700W RMS output from a compactly massive 10-inch platform Designed for high-current, low-impedance system builds Exceptional thermal management and mechanical control Compact size with big-sub behavior Maximum output per cubic foot for serious builds Ideal Applications High-power daily-driven systems SPL-focused builds using multiple compact subwoofers Vehicles with limited enclosure space and upgraded electrical Builders seeking extreme output without stepping up in size Serious audio systems where normal 10s are not enough View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: TCX Ohm: 2 Subwoofer Size: 10 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 1 Review 5 Tcx 10" 2700w perfect monster!! Posted by Justin ❤️ D4S on Oct 04, 2025 I will own 1 hopefully 2 of these beautiful monsters when I dont have to take care of everyone else. (not complaining)! With taking care of my Wonderful mother that has Dementia, and my amazing daughters 1st year in college, I work more then I dont! 65 -75 hrs a week just to pay for everything now. I just wo t ever have the funds for these. I have saved every penny to buy the down4sound amps that I have now ( jp63- 2 jp23v2s) sence the pandemic but have never been able to hook them up to any subs. There still in the boxes!! Every says how the other brand is the best in the game.. they definitely make nice car audio subs and amps. But DOWN 4 SOUNDS QUALITY, SERVICE, MATCHED WITH PRICE IS UNTOUCHABLE IN ANYWAY!! THIS IS FACT NOT OPINION. IF OR WHEN I HAVE THE TIME I WILL DO A 100% D4S BUILD MAYBE APPLY FOR SPONSORSHIP TO HELP WITH THE BUILD. ID TRAVEL AND COMPETE AND NO DOUGHT WIN COMPETITIONS!!! JOHNATHAN LOOK OUT FOR ME IN THE FUTURE IM COMING AND WANT TO DO A BUILD LIKE NOTHING BEFORE. I HAVE A 3 ROW SEATING 2014 FORD FLEX LIMITED . ITS THE PERFECT VEHICLE TO BUILD AN UN MATCHED DOWN4SOUND MONSTER MOBILE❤️❤️???????????? SORRY for getting a little to deep. It's the 1stand last thing id like to do and succeed and only id do for myself after taking care of everyone else (witch I wouldn't change for anything! My mother is an angel and did everything for everyone before dementia and my daughter is such a smart amazing great kid that paying for her college isn't an option. So again im not complaining only explaining why my dreams have to wait) its my responsibility to do exactly what im doing in my life and taking care of the things I do!. Your a legend Mr Price! When I have the ability im driving out from boston to hopefully meet you!!! ??❤️someday, someday!!❤️????????????? your a legend! View All Close

Description Warranty Information Additional Information 1 Review Description The DOWN4SOUND TCX 12” Subwoofer D1 is precision-engineered for aggressive output and long-term durability. Featuring a 3" 8-layer flat aluminum voice coil , carbon fiber cone, stitched surround, and a massive 5-stack Y35 ferrite motor , it delivers raw output with total control. This sub is thermally optimized through full venting on the motor, backplate, and pole piece — allowing you to push full power without losing performance. Key Features 2700W RMS power handling Dual 1-ohm voice coil (D1) 3-inch 8-layer flat aluminum voice coil Carbon fiber cone ~39 mm one-way Xmax 5-stack Y35 heavy-duty motor Stitched high-roll surround Triple-spider suspension Fully vented motor & backplate for cooling Technical Specifications (T/S Parameters) Resonance Frequency (Fs): 36.451 Hz Qms: 3.949 Qes: 0.458 Qts: 0.396 Mms (Moving Mass): 507.996 g Cms (Compliance): 41.047 μm/N Vas: 9.179 L Sd: 113.411 cm² BL Product: 20.200 T·m Sensitivity (SPL): 83.5 dB Xmax: ~39 mm (one-way) Displacement: 0.25 cu ft Engineering and Construction Extended pole piece for linear throw Dual flared pole vent for smooth coil cooling Fully vented motor and backplate Precision-wound 3″ 8-layer flat aluminum voice coil (bifilar) on a 0.3 mm anodized aluminum former Carbon fiber cone for rigidity and reduced flex Built to survive high power, long sessions, and real-world abuse Recommended Enclosure Ported: 2.0 – 2.5 cu ft Recommended Tuning: 32 Hz Optimized for deep, aggressive bass with strong control and efficiency Physical Dimensions (Key Installation Specs) Mounting Cutout Diameter (Through Cut): 10.83 in (275 mm) Overall Cutout Diameter (Flush-Mount Recess): 12.32 in (313 mm) Mounting Depth: 12.25 in (311.15 mm) Motor Diameter: 9.45 in (240 mm) Net Weight: 98.77 lb Gross Weight: 104.3 lb View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: TCX Ohm: 1 Subwoofer Size: 12 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 1 Review 5 This Subwoofer is a beast. Posted by Raymond Petty on Dec 06, 2025 This subwoofer eats up everything you can give it. I have a small hatchback and it’s like thunder going off in that car. The only downside is right after I bought it they went on sale. Definitely would love two of these in that car. Thanks D4S! View All Close

The Down4Sound DOWN4SOUND TCX 12" SUBWOOFER - 2 OHM DVC | 2700W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=36.216Hz, Qts=0.492. Designed for deep bass reproduction and high SPL output.

Description Warranty Information Additional Information 0 Reviews Description The DOWN4SOUND TCX 15” Subwoofer D1 is engineered for high-performance bass with long-lasting durability. Whether you’re building a street banger or a full demo wall, the TCX-15 D1 delivers aggressive output with clean, deep low-frequency response. With a true 2700W RMS rating, a 3-inch 8-layer flat aluminum voice coil , carbon fiber cone , and a massive 5-stack Y35 ferrite motor , this subwoofer delivers the perfect balance of power, control, and precision. Vented backplate, rear gap venting, and dual flared pole vents keep the coil running cool under sustained high power. Key Features 2700W RMS power handling Dual 1-ohm voice coil (D1) 3-inch 8-layer flat aluminum voice coil Carbon fiber cone ~39 mm one-way Xmax 5-stack Y35 heavy-duty motor Stitched high-roll surround Triple-spider suspension Rear gap and fully vented motor & backplate for cooling Technical Specifications (T/S Parameters) Resonance Frequency (Fs): 28.9 Hz Qms (Mechanical Q): 4.91 Qes (Electrical Q): 0.50 Qts (Total Q): 0.46 Total Moving Mass (Mms): ~608.7 g Suspension Compliance (Cms): ~49.8 μm/N Equivalent Volume (Vas): ~37.7 L Sensitivity (SPL): 84.3 dB @ 1W / 90.5 dB @ 2.83V Xmax: ~39 mm (one-way) Driver Displacement: ~0.22 cu ft Engineering and Construction Extended pole piece for clean, linear throw Dual flared pole vents for reduced turbulence Rear gap and motor venting for improved thermal regulation Precision-wound 3″ 8-layer flat aluminum voice coil (bifilar) on a 0.3 mm anodized aluminum former Carbon fiber cone for rigidity and reduced flex Built to survive high power, long sessions, and real-world abuse Recommended Enclosure Ported: 3.25 – 4.0 cu ft Recommended Tuning: 30–32 Hz Optimized for deep, aggressive low-frequency output Physical Dimensions (Key Installation Specs) Mounting Cutout Diameter (Through Cut): 13.56 in (344.5 mm) Overall Cutout Diameter (Flush-Mount Recess): 15.39 in (391 mm) Mounting Depth: 13.50 in (342.9 mm) Motor Diameter: 9.45 in (240 mm) Net Weight: 101.41 lb Gross Weight: 109.35 lb View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: TCX Ohm: 1 Subwoofer Size: 15 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

The Down4Sound DOWN4SOUND TCX 15" SUBWOOFER - 2 OHM DVC | 2700W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=28.9Hz, Qts=0.46. Maximum linear excursion (Xmax): 35mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound DOWN4SOUND TCX 18" SUBWOOFER - 1 OHM DVC | 2700W RMS is a high-performance subwoofer. Thiele-Small parameters: Fs=30.207Hz, Qts=0.521. Designed for deep bass reproduction and high SPL output.

Description Warranty Information Additional Information 0 Reviews Description The DOWN4SOUND TCX 18” Subwoofer D2 is built for extreme output, heavy power handling, and clean low-end delivery. Featuring a 3" 8-layer flat aluminum voice coil , carbon fiber cone , stitched high-roll surround , and an oversized 5-stack Y35 ferrite motor , this subwoofer is engineered to dominate both daily systems and demo builds. With a triple-spider suspension , fully vented motor structure , and extended pole piece , the TCX-18 D2 is optimized for long throw and sustained abuse. From punchy low bass to extended sweeps, it delivers consistent pressure without breaking a sweat. Key Features 2700W RMS power handling Dual 2-ohm voice coil (D2) 3-inch 8-layer flat aluminum voice coil Carbon fiber cone ~39 mm one-way Xmax 5-stack Y35 heavy-duty motor Stitched high-roll surround Triple-spider suspension Dual flared pole vent, gap venting, and fully vented motor & backplate Technical Specifications (T/S Parameters) Resonance Frequency (Fs): 30.207 Hz Qms: 5.202 Qes: 0.598 Qts: 0.521 Mms (Moving Mass): 620.257 g Cms (Compliance): 39.745 μm/N Vas: 24.882 L Sd: 113.411 cm² BL Product: 27.216 T·m Sensitivity (SPL): 83.9 dB Xmax: ~39 mm (one-way) Driver Displacement: 0.31 cu ft Engineering and Construction Extended pole piece for smooth, clean long-throw travel Dual flared pole vent and gap venting for reduced turbulence Fully vented backplate and motor structure for thermal control Precision-wound 3″ 8-layer flat aluminum voice coil (bifilar) on a 0.3 mm anodized aluminum former Carbon fiber cone for rigidity, fast response, and reduced flex Built to survive high power, long sessions, and real-world abuse Recommended Enclosure Ported: 5.5 – 6.5 cu ft Recommended Tuning: 30 Hz Optimized for deep, high-output low-frequency performance Physical Dimensions (Key Installation Specs) Mounting Cutout Diameter (Through Cut): 16.54 in (420 mm) Overall Cutout Diameter (Flush-Mount Recess): 18.35 in (466 mm) Mounting Depth: 14.25 in (361.95 mm) Motor Diameter: 9.45 in (240 mm) Net Weight: 104.72 lb Gross Weight: 116 lb View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: TCX Ohm: 1 Subwoofer Size: 18 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

Description 5 Reviews Description CURRENTLY 6-8 WEEK BUILD TIME Custom built Sub woofer Box (HAND MADE IN THE USA) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 5 Reviews 5 Speaker enclosure Posted by Andy Stapleton on Jul 28, 2021 Great product and will order my next enclosure from you guys. 5 Dual 10" custom subwoofer box Posted by Calvin Escobar on Jul 21, 2021 Built for two Sundown Audio X10 V2s 3 cubic feet tuned to I believe 32hz. The subs are facing up and port is facing back towards the liftgate. I'm not sure who built my box, but DAMN does this thing look gorgeous, the carpeting job looks and feels incredible and the box itself feels extremely high quality even with the mid duty option so I can only imagine a heavy duty box. sound is phenomenal and an added little bonus my truck smells great thanks to the unique wood smell mixing with my vanillaroma little trees air fresheners lol! I will never go back to a prefab box after this. The sound is so much richer, cleaner, punchy and much more full that I couldn't even believe they were the same subs and same JP23 amplifier that they were on before! I was nervous that the dog would come with battle scars due to shipping or worse, would come busted but the builder took measures to the extreme and used pool noodles on every corner and flat surface of the box, shrink wrapped a ton and surrounded in cardboard boxes then boxed again. Listen, If you're looking for a custom box do us all a favor and most importantly do yourself the favor, don't make the mistake of buying a prefab box. You'll never be happy with its performance trust me I know. Spend the extra money and wait the build time get you a custom built to spec box that's quality made in the USA and will ensure smiles for miles! 5 Dual 10 enclosure Posted by Russell on Dec 05, 2019 absolutely Amazing ! and Keiths Customer Service was amazing ! was well worth the wait! 5 Speaker box Posted by Scott steenhoven on Apr 21, 2019 Box is wonderful. Very happy with the box and looks wonderful in my behicle 5 Duel 10’’ sub box Posted by Jeremy on Oct 24, 2018 One of the nicest box’s I’ve seen. Build quality is awesome. My subs fit perfect. I had to wait a little longer than I was hopping. The wait was well worth it! It took about 4 weeks. I’m sure Keith is very busy with lots of builds so the wait is not bad I’m just inpatient View All Close

Description 12 Reviews Description CURRENTLY 3-4 WEEK BUILD TIME (HAND MADE IN THE USA) BOX IN PICTURES IS JUST AN EXAMPLE. ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 12 Reviews 5 12 subwoofer box Posted by Antonnio Mcquarters on Sep 27, 2025 Best box i have purchased, my friends love it and it blends in with the set up i have in my truck, sound amazing and is solid, thanks alot ! 5 Dual 12 custom kerf port hand made enclosure Posted by Chad Woesner on Aug 25, 2025 Thank you down4sound john did an amazing job building my enclosure to my exact measurements and color very solid and sounds amazing I couldn't be happier with this build. I will definitely be doing more business with you guys for my next project. Thanks again. 3 Enclosure build is awesome perfectly made Posted by Angel Mota on Aug 08, 2022 The only reason for the Three stars is because it took a little longer than the 6 to 8 weeks build time it says actually took about 12 weeks but other than that its a well built enclosure 5 Box sounds and looks great Posted by Chris Fiske on Mar 09, 2022 This will be the second box I've had built.. two different people did the box's and I have to say, you can definitely tell the difference in builders not gone say which box is better or worse they both nice but you can tell one took more time then the other one... 5 Everything was excellent Posted by Robert Stevenson on Oct 27, 2020 This box is a work of art Keith does amazing work! I would highly recommend if your looking for top notch work! 5 Best enclosure ever Posted by Jason Ghering on Sep 08, 2020 From the time I ordered the enclosure till finish. Barb helped me every step and let me know any changes, and if delays. She is a great person and Keiths work is amazing and best I ever seen. 2 Oh boy Posted by Tj on Jul 27, 2020 The build quality of this box is out of this world fantastic. The reason for my lower score is because of the build time, shipping and terminal cup. The build time took about 2-3 weeks longer than I was promised,shipping took 3 days longer than promised. For the terminal cup, the way it is installed/bulid in needs to be a push style cup. The fact i have to use ring terminals for the speaker wire is crazy. When you get the wire hooked up to the terminal cup and put back in,it bends the hell out of the wire and is currently causing issues and now im looking at having to replace ther terminal cup 5 Just do it Posted by Mitch Oliver on Oct 25, 2019 If your thinking about it, just do it! You WILL NOT be disappointed. After having my car audio shop I go to build me a box that turned out wrong (cubic feet was too small, tuned incredibly high not at 32HZ like I asked, not flush mounted like I asked) I decided to go with D4S. I received my box last night and the craftsmanship is outstanding! Keith Sanders is awesome and totally killed it! It’s exactly build to the specs I wanted. You can get them cheaper from shops but what happened to me might happen to you. You get what you pay for. This new box made all the difference. It’s so much cleaner and louder now. Very pleased. 5 Awesome! Posted by Johnathan Foxworthy on Apr 10, 2019 Amazing Craftsmanship. Best customer service! 5 Best Enclosure and Excellent Craftsmanship! Posted by Wil Santiago on Nov 07, 2018 First of all let me say thanks to Kieth and Barbara for excellent customer service. Barbara took care of my order and kept me informed throughout the process. I did not rush or bother them with endless communications. Keith sent me out some pictures of the enclosure and and the process before shipping. Now to the best part, I received the enclosure on Monday and with the packaging, I was very impressed so I knew if they took this much time to package the box, I could expect nothing but a 5 star box inside. I was blown away with Keith's craftsmanship and right away I had to text Barbara and let them know how happy I was. About 2 months ago, I order a kerf ported enclosure from another online seller who is always running specials on kerf ported boxes and I must tell you, first of all, you get what you pay for, second of all, the box went into the trash a month ago. The box I got from D4S came sanded perfectly, great wood, rounded corners, 45's inside all the corners for reinforcement, and packaging was excellent! I will continue to order from D4S. Thank you all! Next View All Close

Description 7 Reviews Description Custom 15 inch subwoofer box : CURRENTLY 3-4 WEEK BUILD TIME (HAND MADE IN THE USA) Custom built Sub woofer Box. PICTURE IS JUST AN EXAMPLE. YOUR BOX WILL BE MADE TO YOUR EXACT SPECIFICATION AND REQUESTS. ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 7 Reviews 5 Sub Box Posted by Bilger on Jul 29, 2022 The designer worked with me for exactly what I was looking for and with a pair of Sundown Xv3 15's this thing beats the crap out of my car pretty sure i'm doing a 150db on music with a Salt 8k and i got to meet the box builder to pick it up. Well worth it. Just remember it will take a good bit of time for it to be done expect maybe 3-4 months from purchase date till its at your doorstep. 4 custom built box Posted by aaron fluent on May 15, 2022 only reason I am giving 4 stars is because it has some flaws, I couldn't build a box like this, so it meets my standards, the design of this box for my specific subs is a game changer! 5 Quality craftsmanship Posted by Max on Jan 21, 2022 My trunk area is tight with my Jeep Grand Cherokee but D4S on the other side of USA, got what I wanted to do, being in Georgia. Superb craftsmanship and top notch communication during the build. If you got it, I’d spend it. Especially if you just don’t have time or wanna f with building one yourself. Mine was built with a 10” port instead of slot ported. Wasn’t sure at first but these guys know what to do. 5 Dual 15 sub box Posted by thomas maloy on Nov 09, 2021 Keith is hands down one of the best builders out there the build process is outstanding almost daily updates pics,videos and is always available to answer any questions you mite have and when it arrives it’s packaged just perfect and when you open it up it’s then that you realize you didn’t buy just a sub box you bought Keith’s art cause the box is truly amazing and the quality is hands down this is a box that will last thank you to down4sound and thank you to keith sanders for the amazing build. 5 Absolute BEST! Posted by TC Wigger on Mar 13, 2020 It’s been a hard wait but my dual 15 Nsv4 box arrived today. As soon as I removed the packaging, I was absolutely stunned! The craftsmanship of the enclosure is unlike anything I’ve ever had in the past. From start to finish, I was more than impressed. I emailed with exact measurements and the exact type of enclosure I wanted and JP walked me through the process. The designer called me when he started the design and we worked out a couple tweeks in the enclosure to make it work better in my Highlander.. After that, Keith Sanders called to discuss the build process and confirm everything I wanted. Throughout the build, Keith sent me pics and videos so I could see exactly how things were moving along. It was amazing to feel so involved throughout this process! This has been, Hands Down, the best build experience I’ve ever been a part of. This enclosure will be with me for years to come! If you think they cost too much, just remember that you get what you pay for. And if you do go for it, and it shows up, you’ll be TOTALLY glad you did! Thank you so much JP, John, and Keith for everything. You’ve got my support 100% 5 Dual 15" Subwoofer Enclosure Posted by Kimo Velleses on Aug 05, 2019 The entire process from order to delivery was seamless! Customer service and communication throughout the build was spot on. They make sure it is exactly how you want it and do a dang good job making it happen. The end result far surpassed my expectations as the attention to detail is second to none. Thank you all again for the amazing work! 5 Dual 15 inch subwoofer enclosure Posted by Mikel Cunningham on Sep 19, 2018 From the start the customer service is the best in the game. I recieved progress updates throughout the build and the builder keith sanders outdid himself on my build. Best no wall enclosure I've ever seen. Big thanks to Barbara for keeping me updated on everything and the outstanding customer service. Mr. Down4soundshop himself johnathan price keeps it real with you and has the best products for the best prices. Also you cant beat the free bees you get with your order. I'm going to be a down4sound customer 4 life!!! Thanks again to the whole down4sound crew. View All Close

Description 0 Reviews Description Dual 18" Custom Sub Boxes with Kerf CURRENTLY 3-4 WEEK BUILD TIME PLEASE PUT IN ORDER NOTES IF YOU NEED THIS BOX FOR 6.5" SUBS OR 8" SUBS. The pictures here are just an example. Your exact box will be tailored to your wants and needs. Down4Sound is has sold thousands to thousands of happy customers, these boxes are shipped safely. Order your custom sub box today! (HAND MADE IN THE USA) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for Sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 0 Reviews View All Close

Description 5 Reviews Description Dual 6.5 or 8" Dual Custom Sub Boxes with Kerf CURRENTLY 3-4 WEEK BUILD TIME PLEASE PUT IN ORDER NOTES IF YOU NEED THIS BOX FOR 6.5" SUBS OR 8" SUBS. The pictures here are just an example. Your exact box will be tailored to your wants and needs. Down4Sound is has sold thousands to thousands of happy customers, these boxes are shipped safely. Order your custom sub box today! (HAND MADE IN THE USA) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 5 Reviews 5 In house custom sub enclosure Posted by Chris on Oct 17, 2019 This has got to be one of the best built enclosures I have gotten. The whole experience was awesome! Received updating photos of the progression of the build and awesome communication with that actually craftsman on my project. Even had off topic conversation just in car audio in general and always got fast response. 5 Amazing quality and service Posted by curtis heckman on Jul 31, 2019 From start to finish Barbara and Keith were phenomenal! Barbara verified all the specs and kept me in the loop prior to the build, then Keith knocked it out of the part. Keith sent pictures of the build from start to finish and contacted me to ensure all of the details. These guys run a tight ship and put out nothing but quality. D4S is hands down the best in the business. Don’t hesitate to buy, if you want outstanding quality and a service after the sale you will not find better. 5 Great experience through whole process Posted by Michael Peterson on Dec 27, 2018 Johnathan was awesome on ordering process called me on the phone to verify all details, Barbara took care of the box design texting me with specs and a detailed design, and finally Keith Sanders knocked it out of the park sending me pictures during the build process! Great experience throughout the whole process, about ready to order another box. A NSV4-10D2 can't wait for the next process with this awesome shop!! 5 that down 4 sound difference!!!!! Posted by Robert cooper on Nov 11, 2017 These boxes are definitely some next level stuff. I had several questions about the box as there are many options available for the build. Jp was there to help me & I have to say that down for sound difference is no joke. These dudes are definitely the best in the business. 5 awesome!! Posted by alec mcdaniel on Aug 28, 2017 Nicest boxes I've ever seen, thanks jp for the D4S experience!! View All Close

The Down4Sound DVX 12" SUBWOOFER - DVC | 1700W RMS is a high-performance subwoofer featuring a 4-inch cone. Rated at 1700W RMS. Thiele-Small parameters: Fs=38.95Hz, Qts=0.503. Maximum linear excursion (Xmax): 33mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound DVX 15" SUBWOOFER - DVC | 1700W RMS is a high-performance subwoofer featuring a 4-inch cone. Rated at 1700W RMS. Thiele-Small parameters: Fs=30.413Hz, Qts=0.447. Maximum linear excursion (Xmax): 33mm. Designed for deep bass reproduction and high SPL output.

Description 0 Reviews Description CURRENTLY 3-4 WEEK BUILD TIME (HAND MADE IN THE USA) Custom built Sub woofer Box. PICTURE IS JUST AN EXAMPLE. YOUR BOX WILL BE MADE TO YOUR EXACT SPECIFICATION AND REQUESTS. ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 0 Reviews View All Close

Description 0 Reviews Description CURRENTLY 3-4 WEEK BUILD TIME (HAND MADE IN THE USA) Custom built Sub woofer Box, Each box is built to your exact wants and needs. Pictures are just examples of what we have built for customers in the past. ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 0 Reviews View All Close

Description 1 Review Description CURRENTLY 3-4 WEEK BUILD TIME Custom built Sub woofer Box (HAND MADE IN THE USA) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 1 Review 5 Quad 15" Sweet enclosure Posted by Shawn Lee on Sep 23, 2018 Looks nice well built sounds good 5 stars for sure. View All Close

Description 0 Reviews Description *****Sales are final***** CURRENTLY 3-4 WEEK BUILD TIME Custom built Sub woofer Box, Each box is built to your exact wants and needs. Pictures are just examples of what we have built for customers in the past. (HAND MADE IN THE USA) **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 0 Reviews View All Close

Description 1 Review Description 6.5" or 8" custom sub boxes by Down4Sound CURRENTLY 3-4 WEEK BUILD TIME Custom built Sub woofer Box, Each box is built to your exact wants and needs. Pictures are just examples of what we have built for customers in the past. (HAND MADE IN THE USA) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 1 Review 5 Get that D4S difference Posted by Alexander on Jan 29, 2020 Just wow! I’m impressed at the build quality and the tone this box makes with my 4 ampere audio subs in it! I have had different models of subs 8’s,10’s,12’s and 15’s in my vehicle and lets just say these Ampere 6.5 subs in the proper tuned enclosure make air move and the sound is out of this world ! I would suggest if you have the money or credit do it right get a box built to spec by the pro Keith Sanders you will not regret it one bit! JP doesn't lie get some of the D4S difference you will be glad you took care of you! View All Close

The Down4Sound SB 10" SUBWOOFER - DVC | 500W RMS is a high-performance subwoofer featuring a 4-inch cone. Rated at 500W RMS. Thiele-Small parameters: Fs=37.717Hz, Qts=0.427. Maximum linear excursion (Xmax): 21mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound SB 12" SUBWOOFER - DVC | 500W RMS is a high-performance subwoofer featuring a 4-inch cone. Rated at 500W RMS. Thiele-Small parameters: Fs=29.890Hz, Qts=0.516. Maximum linear excursion (Xmax): 21mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound SB 8" SUBWOOFER - DVC | 500W RMS is a high-performance subwoofer featuring a 4-inch cone. Rated at 500W RMS. Thiele-Small parameters: Fs=39.620Hz, Qts=0.543. Maximum linear excursion (Xmax): 21mm. Designed for deep bass reproduction and high SPL output.

Description Warranty Information 7 Reviews Description Looking for a High-Quality 10-Inch Ported Sub Box Enclosure? The Down4sound PRO-FAB 10 is the Ultimate Solution! If you're looking for a 10-inch sub box that delivers amazing sound performance, look no further than the Down4sound PRO-FAB 10. This high-quality 10 inch ported sub box enclosure is specially designed to give you the deep, rich bass that you crave. Built to Last: Our PRO-FAB 10 10 Inch Prefab Enclosure is Made with Strong and Durable Materials Unlike other sub box enclosures on the market, the PRO-FAB 10 is built to last. Constructed with strong and durable materials, like high grade bedliner armor this prefab subwoofer box can withstand years of use without compromising its sound quality. Plus, its sleek design makes it an attractive addition to any car interior. Easy to Install: Simply Plug in and Start Enjoying the Amazing Sound Quality of the PRO-FAB 10 Sub Box Enclosure You don't need any technical knowledge or complicated setup to enjoy the amazing sound quality of the PRO-FAB 10. Simply plug it in and start listening to your favorite tunes. Its easy installation process makes it a perfect addition to any car audio system. Affordable Pricing: Experience Unmatched Sound Quality Without Breaking the Bank At Down4sound, we believe that everyone should be able to enjoy amazing sound quality without breaking the bank. That's why we offer the PRO-FAB 10 at an affordable price. Upgrade Your Audio Experience Today: Order Your Down4sound PRO-FAB 10 10-Inch Sub Box Enclosure Now! Don't waste your money on flimsy, poorly tuned sub box enclosures. Upgrade to the PRO-FAB 10 today and experience the difference. Order your Down4sound PRO-FAB 10 10-inch sub box enclosure now and start experiencing the deep, rich bass that you've been missing out on! 1.25 Cube Single 10" Enclosure 32Hz Tuning .75" MDF Subwoofer cutout - 9 1/8" Mounting Depth -11.5" Black Bedliner Finish Plastic terminal Cup Plastic Bag Foam Corners Double Wall Box Shipping Box Good for up to 3000w Rated Power (Any higher power than this and we highly recommend you get one of our custom hand built heavy duty enclosures) Designed by Bassahaulic Productions Total Size: L x W x H: 19 x 15.5 x 13 Recommended subwoofers for example are any more budget type of subs such as any Sundown audio subwoofer up to the U series. DO NOT USE THIS BOX FOR ANY BIGGER SUB THAN THAT SUCH AS THE X SERIES, ZV5 SERIES AND UP . IT WILL BREAK THE BOX. Anything above that in size and you would want to purchase one of our custom one off (hand built to order) subwoofer boxes. **** All Sales are Final *** View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our websi te. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior returning of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take in affect from the date of purchase and must also be stated on orginal sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close 7 Reviews 5 Worth it! Posted by Dac on Sep 26, 2025 Like I said it's worth it! This box is one of the best prefab box that I have purchased. I have custom, premade, and other brands off Amazon. This box is very well built and the quality is definitely up there. Once they restock their other sizes I will grab them too! Don't hesitate and spend the little extra for something that you can enjoy for years. 5 Pro-Fab 10” ported enclosure Posted by Brian on Sep 25, 2025 Awesome enclosure and fits really well in my Honda Fit. Well built and feels solid. 4 Single 10" profab V.1 Posted by Ruben on Aug 20, 2025 I like the box and its solid, heavy . I dont like the postive and negative bolt on terminals where you have to add ring terminals. You should have an option for quick release. Thats honestly the only thing I dont like. 5 Box Posted by Jose Martinez on May 21, 2022 Box is better in person! Highly recommended 5 Great Box Posted by robbie on Sep 03, 2021 This is the best box I have ever owned, it's extremely well built and it just screams quality. it actually looks even better in person than on the stock photo. 5 10in Profab enclosure Posted by Ronald Hardcastle Jr on Mar 16, 2021 I bought 1 SA 10 classic, Profab box, and SFB1000 from D4S. The box is tuned to 32hz. The box is made very solid!! sub sounds great in the box. Definitely will purchase from D4S again.. D4S was awesome to deal with. Shipping was fast. 5 This thing slams lows! Posted by Dylan Eberflus on Sep 22, 2020 I put my sundown E10 in this thing just 1 entry level 10 and my whole interior headliner, windshield, doors shake! This box has the best sounding low notes I’ve heard compared to other pre made boxes from other company’s. Very happy! View All Close

Description 4 Reviews Description CURRENTLY 3-4 WEEK BUILD TIME Custom built Sub woofer Box (HAND MADE IN THE USA) Pictures are just examples of what we have done for customers ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 4 Reviews 5 Single 10 kerf port Posted by Tyler Chrisman on Aug 19, 2025 The box is amazing and arrived on time go get that down4sound difference! Cool beans! 5 very nice box! aweosme sound. FRIENDLY staff! Posted by Jacob Isebrands on Feb 06, 2025 Jonny D made my box and he communicated every time I emailed him, even around Christmas! I was able to change my tuning from 34hz to 30hz which is SUPER cool. I changed some parameters in my order and he allowed it. when they box came it was packaged really thorough. No damage even though the box had some dents. craftsmanship was great. I installed my 10" HAWK and played it on my taramps 3000.1 HD amp with a kenwood DMX958XR and tuned it. it sounds REALLY good. its as tight as a sealed box. Very strange. must be the design. I chose the heavy duty box so the wood is thick. Im using mine as a makeshift table too! this box was designed for a high output 10" sub. This box was worth the money. I got binding posts put in instead of terminals which is FAR better and Jonny helped me out with that. THANK YOU BRO! this box makes my system GREAT AGAIN! Ill be referring my friends to you guys. 5 blown away Posted by jeromy on Mar 16, 2018 When I got the box out of the packaging and saw it for the first time I was completely blown away with the craftsmanship. The box is amazing super smooth and all the corners are nice and rounded off. Great job down 4 sound 5 Craftsmanship Posted by Chad on Oct 05, 2017 Way more than expected, beautiful wood work extremely solid and sturdy box. Don’t hesitate you ABSOLUTELY get what you pay for and then some. Extremely satisfied View All Close

Description 16 Reviews Description CURRENTLY 3-4 WEEK BUILD TIME (HAND MADE IN THE USA) Custom built Subwoofer Box. Pictures are for examples only each box is custom built to your liking. ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 16 Reviews 5 Sub box Posted by Josh on Jan 02, 2025 Box is exactly what I asked for. The builder kept in contact with me an it was a great turn around time also 5 12 Posted by Bobby Wells on Jun 06, 2022 I have a salt2 pushing a u12. This box is awesome, no other words can describe it. Totally happy 5 12" kerf box Posted by Bobby Wells on Jun 06, 2022 I have a salt2 pushing a u12. This box is awesome, no other words can describe it. Totally happy 5 Custom box Posted by Bud Johnson on Jan 24, 2022 This is hands down the best subwoofer box I have ever owned. It sounds great and the craftsmanship is excellent! Ted did a great job! 5 Down4Sound Difference Top Notch Posted by Nathan Newsom on Aug 11, 2021 Had one custom built for a Sundown NSV5 12". Absolutely amazing. The whole process was amazing. From when you first put in the order, you will be in contact with Down4Sound making sure that everything is how you will like it. Dion was my builder, and he consistently sent me updates as he was building the enclosure so I could watch the ongoing process from across the country, and the finished product is just absolutely beautiful. I definitely was not expecting the customer service that I received. It was beyond Top Notch. Don't even get me started on the packaging. Hint: It's going to arrive safely to the destination without ANY damage what-so-ever. Order one, you'll see what I mean. 5 Top notch Posted by Mike Sperry on Sep 25, 2019 Very well built box. So happy that they made it out a better material than mfd. With the DC audio sub I have installed in it sounds... I cannot find a high enough prays for how it sounds and holds up. No rattling from the box or fluttering noises from the port. D4S is going to be my number one go to for sub boxes. Thanks for the amazing craftmanship. 5 Custom box single set up Posted by Terrence Morning on Sep 22, 2019 I finally found time to get my speaker in my box & into my Jeep & I'm very satisfied with the strength & tuning that was put into my build. 5 The best enclosure for sure Posted by Miguel rodriguez on Aug 05, 2019 The best enclosure I have ever own totally love the results would definitely be coming back for other one 5 customer service Posted by Justin Wade on May 24, 2019 Best customer service experience. I was able to get in contact with Keith quickly and easily. Sent me updates and was open to changes to the box. 5 STOUT Single 12" Kerf Ported Box Posted by Andy Samuel on Mar 27, 2019 The craftsmanship Keith puts into his boxes is astonishing. I have never seen something so beautiful. The quality of the box is beyond amazing. I ordered the Heavy Duty box version and this thing is solid and heavy. The packing that D4S did to protect the box in shipping is above and beyond. It was wrapped, cardboard boxed, Styrofoam noodled, wrapped again, and boxed another time and put on a pallet. I am beyond impressed at the time they took to protect the box in shipping. JP was helpful during the ordering process and when I had a question along the design process, Keith communicated very well when he was building the box, and Barbara was very helpful going back and forth with to make sure i got exactly what I wanted. I cant believe the overall work ethics that D4S has. Their customer support is top notch in today's age where its hard to find reputable businesses to do business with. I wouldn't hesitate for a second to work with D4S again. Next View All Close

Description 11 Reviews Description CURRENTLY 3-4 WEEK BUILD TIME (HAND MADE IN THE USA) Custom built Sub woofer Box. Pictures are just examples. Your box will be made to your liking :) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 11 Reviews 5 Custom 15 box Posted by Dustin on Apr 14, 2022 Box is amazing. Designer and builder kept in contact with me to update and ask my opinion and goals. Couldn't be happier with it. 5 Single 15 " sub box Posted by Jesse Gonzalez on Oct 01, 2021 I order a single 15" heavy duty ported box tuned to 32 for a x15 sundown sub wooow I can't be more amazed of the quality the looks and finish and specially the sound of it daaaaam it takes up my expedition it sounds amazing I really recommend u guys in ordering one 5 Love it Posted by Alex on Jul 28, 2021 I waited a cool 4 months for my box. Nonetheless just installed this in another vehicle than intended and with the same measurements i was BARELY able to squeeze it in which was amazing. I have a 15” Sundown X, inverted, tuned to 32-34 in a 4.5 cube box. I barely turn it up and all my trim wants to fly out. This is my 2nd box purchase and my first was made by keith so expectations were set. Whilst being another builder the attention to detail could have been better but stuff happens and i could not have done a better job myself. Definitely worth it without a question! 5 Custom sub box Posted by Laurants MCCLOSKEY on Jun 26, 2021 Took about 3 months from order date to arrival, but very well built & extremely efficient. I also chose mid duty as opposed to heavy duty when filling out the order form where you enter your dimensions etc. So I can't even imagine what type of tank they woulda built had i chose heavy duty, one of the box builders contacted me through text directly to ask if any of the dimensions were flexible as he was looking to get a little more internal volume out of the box build which eased my mind to know they were making sure I was happy with the finished product. If you're looking for quality & competence from a custom box builder, your on the right website 5 Best I've ever had! Posted by Evan Henley on May 15, 2021 I'm very happy with the enclosure I ordered for a sundown xv2 15, its definitely heavy duty. It's built to last and it looks amazing. 100% satisfied and worth every penny! 5 Nightshade 15” ENCLOSURE Posted by John Carvahal on Jan 16, 2020 Excellent communication got me exactly what I needed/wanted and more from this purchase. I wish they were hiring.. 5 Custom Box Posted by Jeremy Sprague on Oct 24, 2019 Definitely not prefab and built like a TANK...well built and plenty of communications with the builder Keith Sanders fast shipping and well protected. Definitely would recommend anyone wanting a custom box built for your Sub Specific Do it... 5 D4S SUB BOX Posted by Jamie Page on Aug 20, 2019 This box by far exceeded my expectations. Keith is the man. Definitely my go to shop for any and all car audio. 5 AMAZING!!! Posted by John on Mar 16, 2019 I love my D4S enclosure. Quality is spot on. Absolutely gorgeous finish with the high gloss. And not to mention the LED light in the plexi glass window really set it off. I highly recommend getting one of these, worth every penny. 5 Custom box for NSV4 12 Posted by Brandon Badger on Mar 10, 2018 Best box I have ever seen or owned. JP was extremely helpful throughout the whole process. This will be my first stop from now on for any car audio purchases. Next View All Close

Description 3 Reviews Description CURRENTLY 3-4 WEEK BUILD TIME Custom built Sub woofer Box (HAND MADE IN THE USA) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 3 Reviews 5 Monster box Posted by Chuck on Oct 12, 2020 Was built fast as heck, got updates every step of the way. And even messages about if I had any concerns of it and how I wanted it to be positioned. Once it started getting built I was sent photos of all the progress stages it was at. Once it arrived at my house it was quad boxed foam packed under that and plastic wrapped like crazy. Aka super protected shipping. Built like a tank and rugged as hell. Yet still lighter than. Other boxes I've had goes to show the difference between mdf and birtch wood. If your looking for a box that will last decades and will slam the lows id go with one of these 5 18” d4s enclosure Posted by Chris H on May 04, 2020 I’ve purchased many sub enclosures over the years. This one from d4s is def the best one I’ve ever purchased. The quality and craftsmanship are excellent. The packing and wrapping of the enclosure for shipping was perfect. I was worried ups would just toss it around. I will probably purchase another enclosure for my 2 12s. Oh and the box sounds great and tuned to the specs I wanted. 5 Its a beast Posted by Kevin Brunt on Apr 30, 2020 This box is amazing boys at d4s killed it much thanks View All Close

Description 3 Reviews Description CURRENTLY 3-4 WEEK BUILD TIME PLEASE PUT IN ORDER COMMENTS IF YOU NEED THE BOX BUILT FOR A 6.5" SUB OR AN 8" SUB Custom built Sub woofer Box. The pictures here are just an example. Your exact box will be tailored to your wants and needs. (HAND MADE IN THE USA) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 3 Reviews 5 Keith gets down on these boxes, period. Posted by Esteban Herrera on Apr 02, 2020 The craftsmanship and skill used to build these boxes is A1. My box came out absolutely beautiful and very well built. As far as quality and looks, this is as good as it gets. Truthfully, my box does not sound the greatest but that is most likely my fault. Now, when i say it doesnt sound the greatest i just mean it isnt loud at all, the box produces very clean sound actually. This is probably because of a few things. 1, the dimensions for the box were fairly small which made the box's cubic footage slightly less than 1 cubic ft. (sundown x-8 recommends .75 cu.ft, my box is .85 cu. ft) 2nd, the box is upward firing. 3rd, the person who actually made the blueprints for my box essentially told me my box could not be tuned to 32hz (recommended for my sub) so i was told 35hz was the closest tuning possible. honestly i am very upset i spent $390 on a box that doesnt produce the sound i desire, but life is a learning game i suppose. Although i spent a large amount of my hard earned money on something i will need to replace, i still highly recommend these custom enclosures, just be sure your design will sound good in the end. in case you were curious, my sound system includes the following: sundown sae 1500, sundown x-8, obviously a custom enclosure as well as sky high car audio 1/0 OFC. 5 Extremely quality Posted by Christopher Landon Woodward on Apr 01, 2020 I am extremely pleased with the quality of this box. Attention to detail is definitely noticeable. Keith is the man. He even called me to give me an update on the build and sent some pics during the build. In all in all. The box is very well built and sounds amazing. 5 Amazing Posted by Robert Sublett on Jan 20, 2019 Literally the best. The attention to detail and quality is well worth ever penny. D4S View All Close

The Down4Sound Tcx 10" Subwoofer - Dvc | 2700W Rms is a high-performance subwoofer featuring a 4-inch cone. Rated at 2700W RMS. Thiele-Small parameters: Fs=39.760Hz, Qts=0.582. Maximum linear excursion (Xmax): 30mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound Tcx 12" Subwoofer - Dvc | 2700W Rms is a high-performance subwoofer featuring a 4-inch cone. Rated at 2700W RMS. Thiele-Small parameters: Fs=36.216Hz, Qts=0.492. Maximum linear excursion (Xmax): 35mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound Tcx 15" Subwoofer - Dvc | 2700W Rms is a high-performance subwoofer featuring a 4-inch cone. Rated at 2700W RMS. Thiele-Small parameters: Fs=28.9Hz, Qts=0.46. Maximum linear excursion (Xmax): 35mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound Tcx 18" Subwoofer - Dvc | 2700W Rms is a high-performance subwoofer featuring a 4-inch cone. Rated at 2700W RMS. Thiele-Small parameters: Fs=30.207Hz, Qts=0.521. Maximum linear excursion (Xmax): 36mm. Designed for deep bass reproduction and high SPL output.

Description 0 Reviews Description CURRENTLY 3-4 WEEK BUILD TIME Custom built Sub woofer Box (HAND MADE IN THE USA) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 0 Reviews View All Close

Description 0 Reviews Description CURRENTLY 3-4 WEEK BUILD TIME (HAND MADE IN THE USA) BOX IN PICTURES IS JUST AN EXAMPLE. ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 0 Reviews View All Close

Description 1 Review Description CURRENTLY 6-8 WEEK BUILD TIME (HAND MADE IN THE USA) Custom built Sub woofer Box. PICTURE IS JUST AN EXAMPLE. YOUR BOX WILL BE MADE TO YOUR EXACT SPECIFICATION AND REQUESTS. ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 1 Review 5 Custom Box was awsome. Tuned at the right hertz Posted by Sathaphon angel on Sep 26, 2025 Love how the box builder, Johnny kept me up to date with my box. Taking pictures and text messages what gave me patience!! View All Close

Description 1 Review Description Triple 18" Custom Sub Boxes with Kerf CURRENTLY AROUND A 3-4 WEEK BUILD TIME PLEASE PUT IN ORDER NOTES IF YOU NEED THIS BOX FOR 6.5" SUBS OR 8" SUBS. The pictures here are just an example. Your exact box will be tailored to your wants and needs. Down4Sound is has sold thousands to thousands of happy customers, these boxes are shipped safely. Order your custom sub box today! (HAND MADE IN THE USA) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 1 Review 5 Triple 18 box Posted by T.J. Colleran on Nov 26, 2021 Absolutely amazing craftsmanship top notch quality of material and the craftsmanship was absolutely amazing I am so happy to have this box I gained 2 db 3 fi omegas on 3 salt 8ks wired to .5 doing a 159.6 on the glass driver door open View All Close

Description 0 Reviews Description Triple 6.5 or 8" Triple Custom Sub Boxes with Kerf CURRENTLY 3-4 WEEK BUILD TIME PLEASE PUT IN ORDER NOTES IF YOU NEED THIS BOX FOR 6.5" SUBS OR 8" SUBS. The pictures here are just an example. Your exact box will be tailored to your wants and needs. Down4Sound is has sold thousands to thousands of happy customers, these boxes are shipped safely. Order your custom sub box today! (HAND MADE IN THE USA) ORDERS CAN ONLY BE CANCELED WITHIN 24 HOURS OF PURCHASE, AFTER 24 HOURS THEY BECOME FINALE SALE. **Maximum available dimensions for sub box to fit inside of. Its mandatory to provide and very important for you to measure so when you place your order you know your subwoofer box will fit in the space you have for it, there is no returns on these boxes as they are built to order to fit your exact needs** View All Close 0 Reviews View All Close

Description Warranty Information Additional Information 2 Reviews Description The DOWN4SOUND DBz-10 D2 is built for car audio enthusiasts who want massive bass, high value, and rugged performance without the premium price tag. Delivering a powerful 1300W RMS, this subwoofer offers exceptional output in both compact and mid-sized enclosures. With a dual 2-ohm voice coil configuration, a real carbon fiber dustcap, and an efficient motor system, the DBz-10 D2 provides reliable, hard-hitting bass for daily drivers and show builds alike. Key Features 1300W RMS power handling Dual 2-ohm voice coil design 2.75-inch high-temperature voice coil 28 mm one-way Xmax for extreme linear travel Real carbon fiber dustcap for strength and rigidity Advanced venting throughout the motor for improved cooling Heavy-duty design optimized for high output and long-term durability Technical Specifications (T/S Parameters) Revc (DC Resistance): 3.960 ohm Resonance Frequency (Fs): 40.136 Hz Qms: 2.929 Qes: 0.489 Qts: 0.419 Mms (Moving Mass): 288.732 g Cms (Compliance): 54.460 μm/N Rms (Mechanical Resistance): 0.810 Vas: 10.181 L Sd: 56.305 cm² BL Product: 24.291 T·m Sensitivity (SPL): 83.2 dB Xmax: 28 mm (one-way, mechanical) Displacement: 0.09 cu ft Engineering and Construction Optimized mid-size motor for high efficiency and strong output Rear gap ventilation reduces coil temperatures during extended play Reinforced suspension for stable, reliable high-excursion performance Precision-wound 2.75 inch coil supports high thermal loads Carbon fiber dustcap increases rigidity and reduces distortion Designed as a powerful, affordable upgrade for any system Recommended Enclosures Sealed Enclosure: 0.5 cubic foot (net) Ported Enclosure: 1.0 cubic foot (net) Recommended Tuning: 32 Hz Recommended Port Area: 12–15 square inches total port area This enclosure range provides the DBz-10 D2 with an excellent balance between low-end extension and punchy upper bass while maintaining clean airflow through the port. Physical Dimensions Cutout Diameter: 9.45 in (240 mm) Mounting Depth: 7.36 in (187 mm) Outside Diameter: 10.79 in (274 mm) Motor Diameter: 9.45 in (240 mm) Net Weight: 31.7 lb (14.4 kg) Gross Weight: 35.3 lb (16.0 kg) Why You Should Buy the DBz-10 D2 Massive output for its size with true 1300W RMS performance Compact footprint with deep, punchy bass response Dual 2-ohm voice coils offer flexible wiring options Carbon fiber dustcap enhances both performance and aesthetics Designed for users who want powerful bass without overspending Ideal Applications Daily-driven music systems seeking strong low-end performance Builds tuned in the 28–35 Hz range , where the DBz-10 produces deep, rolling lows with real vehicle cabin gain Trunk, SUV, hatchback, and under-seat enclosures SQL and SPL-influenced daily setups Users wanting responsive punch with usable low-end extension for everyday slamming View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DBz Ohm: 2 Subwoofer Size: 10 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 2 Reviews 5 DOWN4SOUND DBz 10" SUBWOOFER Posted by Ruben on Aug 20, 2025 This 10" is so cool looking. Its intense when you look at it in real life. Its beautiful. The thing sounds amazing. So glad I bought this D4S vice a sundown. They need to make carbon fiber amps as an option. 5 DBz 10" subs Posted by Chris Caudel on May 13, 2025 I am running 8 of these in an iso/free air configuration at about 600w each and I have been very impressed. They sound great ans they look great as well. For the money they are a great choice. View All Close

Description Warranty Information Additional Information 2 Reviews Description The DOWN4SOUND DBz-10 D4 is built for car audio enthusiasts seeking massive bass, rugged performance, and unbeatable value. Delivering a true 1300W RMS, this subwoofer produces strong, punchy bass without demanding a premium budget. With a dual 4-ohm voice coil configuration, the DBz-10 D4 offers wiring flexibility for a wide variety of amplifier setups. Its real carbon fiber dustcap adds a sleek aesthetic while improving rigidity and long-term durability. Built to perform in both compact and mid-sized enclosures, the DBz-10 D4 delivers serious output for daily drivers, demo setups, and cost-effective high-performance builds. Key Features 1300W RMS power handling Dual 4-ohm voice coil design 2.75-inch high-temperature voice coil 28 mm one-way Xmax for extreme linear excursion Real carbon fiber dustcap for strength, rigidity, and premium appearance Advanced venting throughout the motor structure for improved cooling Heavy-duty build engineered for long-term high-output use Technical Specifications (T/S Parameters) Revc (DC Resistance): 6.050 ohm Resonance Frequency (Fs): 40.803 Hz Qms: 2.360 Qes: 0.510 Qts: 0.420 Mms (Moving Mass): 331.124 g Cms (Compliance): 45.948 μm/N Rms: 0.795 Vas: 8.600 L Sd: 56.305 cm² BL Product: 31.746 T·m Sensitivity (SPL): 82.5 dB Xmax: 28 mm (one-way, mechanical) Displacement: 0.09 cu ft Engineering and Construction High-efficiency motor system engineered for aggressive output Rear gap and pole venting for improved cooling and reduced thermal compression Reinforced suspension designed for reliable high-excursion performance Precision-wound 2.75" voice coil built for thermal strength Premium carbon fiber dustcap improves rigidity and reduces cone flex Built to maximize output while maintaining long-term durability Recommended Enclosures Sealed Enclosure: 0.5 cubic foot (net) Ported Enclosure: 1.0 cubic foot (net) Recommended Tuning: 32 Hz Recommended Port Area: 12–15 square inches total port area This enclosure range gives the DBz-10 D4 excellent balance between low-end extension and punchy upper bass for daily listening while maintaining proper airflow through the port. Physical Dimensions Cutout Diameter: 9.45 in (240 mm) Mounting Depth: 7.36 in (187 mm) Outside Diameter: 10.79 in (274 mm) Motor Diameter: 7.48 in (190 mm) Net Weight: 31.7 lb (14.4 kg) Gross Weight: 35.3 lb (16.0 kg) Why You Should Buy the DBz-10 D4 Delivers true 1300W RMS performance suitable for demanding systems Compact footprint with impressive output capability Dual 4-ohm coils provide wiring flexibility across common amplifier setups Carbon fiber dustcap enhances both appearance and structural rigidity Perfect blend of affordability, durability, and daily-driving performance Ideal Applications Daily-driven builds needing high output without large enclosure requirements Systems tuned in the 28–35 Hz range, where the DBz-10 D4 produces deep, rolling lows enhanced by real cabin gain Ported or sealed enclosures in sedans, SUVs, hatchbacks, and trucks SQL-style daily setups seeking a balance of low-end authority and punch Users wanting responsive, aggressive bass performance at a budget-friendly price View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DBz Ohm: 4 Subwoofer Size: 10 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 2 Reviews 5 10” DBZ dual 4 ohm subwoofer Posted by Preston on Feb 26, 2025 A Very affordable heavy duty well made subwoofer that looks great and handles alot of power. 5 D4s Dbz subs Posted by Paul Smith on Oct 31, 2024 These subs look so good l had to comment!! Here goes: I am going to try these out in my civic first to see how they do. If these hold up like I know the amps do these are going to be the secret weapon no one saw coming PERIOD!!!!!! DOWN4SOUND BREAKIN GROUND!!!! LOL View All Close

Description Warranty Information Additional Information 6 Reviews Description The DOWN4SOUND DBz-12 D2 is built for car audio enthusiasts who want huge bass, rugged construction, and unbeatable value. Delivering a true 1300W RMS, this 12-inch subwoofer is designed for daily systems and high-output builds that demand big performance without the big price tag. Featuring a dual 2-ohm voice coil configuration and a real carbon fiber dustcap, the DBz-12 D2 offers flexible wiring options, strong durability, and powerful low-frequency output. Key Features 1300W RMS power handling Dual 2-ohm voice coil design 2.75-inch high-temperature voice coil 28 mm one-way Xmax Real carbon fiber dustcap Advanced motor venting for improved cooling Heavy-duty motor structure Technical Specifications (T/S Parameters) Revc (DC Resistance): 3.960 ohm Resonance Frequency (Fs): 38.106 Hz Qms: 2.772 Qes: 0.511 Qts: 0.431 Mms (Moving Mass): 311.818 g Cms (Compliance): 56.943 μm/N Rms: 0.786 Vas: 22.381 L Sd: 59.093 cm² BL Product: 26.133 T·m Sensitivity (SPL): 85.7 dB Xmax: 28 mm Displacement: 0.15 cu ft Engineering and Construction Extended pole piece for improved linear control Rear gap and pole venting for coil cooling Long-fiber spider system for consistent suspension behavior Precision-wound 2.75-inch voice coil Carbon fiber dustcap for strength and rigidity Recommended Enclosure Sealed: 1.0 cubic foot Ported: 1.75 cubic feet Recommended Tuning: 32 Hz Recommended Port Area: 21 to 26 square inches total Physical Dimensions Cutout Diameter: 11.26 in (286 mm) Mounting Depth: 7.68 in (195 mm) Outside Diameter: 12.44 in (316 mm) Motor Diameter: 11.14 in (283 mm) Net Weight: 32.8 lb Gross Weight: 36.4 lb Why You Should Buy Strong 1300W RMS performance Deep, punchy low-frequency output Flexible dual 2-ohm wiring options Durable construction with premium materials Carbon fiber dustcap enhances appearance and reliability Ideal Applications Daily systems needing reliable, powerful low-end performance Ported or sealed installs in sedans, SUVs, trucks, and hatchbacks Systems tuned in the range for deeper, fuller bass SQL-style daily builds balancing punch and depth Users seeking high-value, high-output performance View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DBz Ohm: 2 Subwoofer Size: 12 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 6 Reviews 5 12” dbz subwoofer Posted by Michael Carter on May 02, 2025 I’ve never had a sub woofer of this quality . It’s absolutely insane if you on the fence just do it there is nothing bad to say about this sub plays really clear lows 5 2ohmDVC DBz 12" Posted by Wes R on Mar 13, 2025 If you get that bass itch and you don't want to break the bank, I do recommend the dbz12 2 ohm DVC. Still breaking in this stiff speaker. Can handle double bass, crisp, clean and accurate. 5 2ohmDVC DBz 12" Posted by Wes R on Mar 06, 2025 The subwoofer plays super clean, loud and punches hard. I have her in a 1.7 cube box. It hurts on some songs. Toccata in B by bass mekanik 5 Best sub I've heard Posted by Aaron wuellner on Dec 16, 2024 I've gotta say this is the best sounding 12 inch sub I've bought the sound quality is rich I was like sweet when I saw its got 4 gauge terminals the best sub I've owned t is on a jp1.2z3 and the box is the d4s flat pack 5 Great Subs Posted by Dymont Spellman on Nov 08, 2024 Subs came in and they are the best. 5 new D4S subs!!! Posted by Emiliano Avellaneda on Nov 07, 2024 I have the new DBZ 12 on a jp13 in a flat pack box. Day 1 not even broken in and this thing slams. I wish I had a clear window on the box so I could see subwoofer because this thing is beautiful. Definitely worth buying! View All Close

Description Warranty Information Additional Information 7 Reviews Description The DOWN4SOUND DBz-12 D4 is engineered for car audio enthusiasts who want big bass, rugged durability, and outstanding value. Delivering a true 1300W RMS, this 12-inch subwoofer provides aggressive, punchy low-frequency output suited for daily-driven systems and high-demand builds. Featuring a dual 4-ohm voice coil configuration and a real carbon fiber dustcap, the DBz-12 D4 offers flexible wiring options, premium styling, and long-lasting performance. Key Features 1300W RMS power handling Dual 4-ohm voice coil design 2.75-inch high-temperature voice coil 28 mm one-way Xmax Real carbon fiber dustcap Advanced motor venting for improved cooling Heavy-duty motor structure Technical Specifications (T/S Parameters) Revc (DC Resistance): 6.050 ohm Resonance Frequency (Fs): 39.707 Hz Qms: 2.433 Qes: 0.559 Qts: 0.454 Mms (Moving Mass): 349.676 g Cms (Compliance): 45.946 μm/N Rms: 0.779 Vas: 18.391 L Sd: 59.093 cm² BL Product: 30.757 T·m Sensitivity (SPL): 85.0 dB Xmax: 28 mm Displacement: 0.15 cu ft Engineering and Construction Extended pole piece for improved linear travel Rear gap and pole venting for coil cooling Long-fiber spider system for stable suspension control Precision-wound 2.75-inch voice coil Premium carbon fiber dustcap for enhanced rigidity Recommended Enclosure Sealed: 1.0 cubic foot Ported: 1.75 cubic feet Recommended Tuning: 32 Hz Recommended Port Area: 21 to 26 square inches total Physical Dimensions Cutout Diameter: 11.26 in (286 mm) Mounting Depth: 7.68 in (195 mm) Outside Diameter: 12.44 in (316 mm) Motor Diameter: 11.14 in (283 mm) Net Weight: 32.8 lb Gross Weight: 36.4 lb Why You Should Buy Strong 1300W RMS performance Deep, punchy low-frequency output Flexible dual 4-ohm wiring options Durable construction with premium materials Carbon fiber dustcap enhances appearance and reliability Ideal Applications Daily-driven systems requiring strong, reliable low-end performance Ported or sealed enclosures in sedans, SUVs, trucks, and hatchbacks Systems tuned for deeper, fuller bass SQL-style daily setups balancing punch and depth Users seeking high-output performance at an affordable price View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DBz Ohm: 4 Subwoofer Size: 12 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 7 Reviews 5 DVZ 12’s D4 Posted by Matt Townsend on Feb 21, 2026 Bought these to replace my EMF Audio Lowballer 12’s I had in a custom 6th order isobaric box. These D4S subs are substantially larger and hit WAY harder than the EMF’s. Would recommend. 5 Great product Posted by Everardo on Jun 21, 2025 Well recommend.. 2 12s hits solid on a set up of JP23 amp with a blow thru single cab 5 These subs bump hard Posted by Jerry on Mar 30, 2025 I replace the Skar EVL 12's with these subs. I'm running 2 of these subs paired with a Sundown SFB 5000 and they can take all the power the amp puts out. These subs sound clean and hits the low notes with authority. I like the carbon fiber cap and it matches the carbon fiber I have in my Jeep. For the price this a budget banger for sure. Thank you JP for offering this subwoofer for us budget bangers. 4 2 dbz 12s Posted by Jason on Feb 23, 2025 So far so good ! Underpowered at the moment but that will change soon !!!!! 5 amazing subs Posted by kevin on Dec 13, 2024 switch from sundown sa to these bad boyz didn't retune my amp and turn the bass down (for break in time) powered by a jp23 and let me tell you this they hit 2x harder then the sundowns can't wait to turn them up 5 D4s Dbz subs Posted by Paul Smith on Sep 29, 2024 To all of my Bassheads out there!! I personally think these subs will the go to for the basshead on a budget PERIOD!!!! I figured it out here goes: 2 Dbz 12s in a d4s profab enclosure 2 sets of d4s jfx65 coaxials a d4s 4 gauge ofc amp kit and a jp95 to run it all. All on stock electrical wait for it all for 1200.00 bucks!! ULTIMATE BASS STARTER SETUP!! JUST SAYIN!!! D4S FOR LIFE!!!! 5 D4s Dbz subs Posted by Paul Smith on Sep 27, 2024 I want to start off by saying, just looking at the quality and craftsmanship these will be for entry level subs will be the go to subwoofer for the budget banger looking for bass at an affordable price PERIOD!!! I would put these in a d4s profab like the sundown sa classics and watch them fly off the shelf!! The perfect setup would be a sub box combo with a jp95 running jfx65 coaxials front and rear and enjoy all day!!! Just sayin!! Your welcome Jp!! Lol View All Close

Description Warranty Information Additional Information 2 Reviews Description The DOWN4SOUND DBz-15 D4 is built for listeners who want massive bass output, rugged construction, and unbeatable value. With a true 1300W RMS rating, this 15-inch subwoofer is designed to deliver aggressive low-frequency performance in daily-driven systems and high-output builds. Featuring a dual 4-ohm voice coil configuration and a real carbon fiber dustcap, the DBz-15 D4 offers strong durability, versatile wiring options, and powerful bass response. Key Features 1300W RMS power handling Dual 4-ohm voice coil design 2.75-inch high-temperature voice coil 30 mm Xmax Real carbon fiber dustcap Advanced motor venting for improved cooling Heavy-duty motor structure Technical Specifications (T/S Parameters) Revc (DC Resistance): 6.050 ohm Resonance Frequency (Fs): 39.561 Hz Qms: 2.826 Qes: 0.714 Qts: 0.570 Mms (Moving Mass): 435.722 g Cms (Compliance): 37.445 μm/N Rms: 0.774 Vas: 40.977 L Sd: 88.141 cm² BL Product: 30.322 T·m Sensitivity (SPL): 87.4 dB Xmax: 30 mm Displacement: 0.19 cu ft Engineering and Construction Extended pole piece for linear excursion Rear gap and pole venting for improved airflow and cooling Long-fiber spider system for suspension control Precision-wound 2.75-inch coil for high thermal capacity Premium carbon fiber dustcap for added rigidity Recommended Enclosure Sealed: 2.0 cubic feet Ported: 3.0 cubic feet Recommended Tuning: 32 Hz Recommended Port Area: 36 to 45 square inches total Physical Dimensions Cutout Diameter: 13.86 in (352 mm) Mounting Depth: 8.43 in (214 mm) Outside Diameter: 15.59 in (396 mm) Motor Diameter: 13.74 in (349 mm) Net Weight: 34 lb Gross Weight: 37.9 lb Why You Should Buy Strong 1300W RMS performance Deep, powerful low-frequency output Dual 4-ohm coils for flexible wiring Durable construction capable of handling high SPL Carbon fiber dustcap for strength and visual appeal Ideal Applications Daily-driven systems needing deep, powerful bass Ported or sealed enclosures in SUVs, sedans, hatchbacks, and trucks Systems tuned in the 28–35 Hz range for fuller low-end performance SQL-style daily setups requiring both punch and depth Users seeking high-value performance without sacrificing output View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DBz Ohm: 4 Subwoofer Size: 15 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 2 Reviews 5 Love them Posted by Chris Morgan on Jan 28, 2026 I recently purchased 2 dbz 15s have not yet hooked them up I am doing a slow build thinking about getting a 3rd and doing 3 15s build but with that being said they look great fell solid will definitely update when I complete the build 5 Budget bangers!!!! Posted by BANGERS!!!! on Dec 21, 2024 I had 6 jl W0s and swapped direct for 6 of these bad boys, even on a single JP33 these things are absolute animals!!!!! Sound quality is in paradise with the jls!!!! View All Close

Description Warranty Information Additional Information 0 Reviews Description The DOWN4SOUND DBz-18 D4 is engineered for listeners who want massive bass output, rugged construction, and unbeatable value. With a true 1300W RMS rating, this 18-inch subwoofer delivers deep, aggressive low-frequency performance suited for daily-driven systems and high-output builds. Featuring a dual 4-ohm voice coil configuration and a real carbon fiber dustcap, the DBz-18 D4 offers wiring flexibility, long-term durability, and powerful bass response. Key Features 1300W RMS power handling Dual 4-ohm voice coil design 2.75-inch high-temperature voice coil 30 mm of Xmax Real carbon fiber dustcap Advanced motor venting Heavy-duty motor structure Technical Specifications (T/S Parameters) Revc (DC Resistance): 6.050 ohm Resonance Frequency (Fs): 30.810 Hz Qms: 2.745 Qes: 0.620 Qts: 0.506 Mms (Moving Mass): 481.756 g Cms (Compliance): 48.844 μm/N Rms: 0.780 Vas: 101.023 L Sd: 120.887 cm² BL Product: 31.152 T·m Sensitivity (SPL): 89.5 dB Xmax: 30 mm Displacement: 0.21 cu ft Engineering and Construction Extended pole piece Rear gap and pole venting Long-fiber spider system Precision-wound 2.75-inch coil Carbon fiber dustcap Recommended Enclosure Sealed: 3.5 cubic feet Ported: 4.5 cubic feet Recommended Tuning: 32 Hz Recommended Port Area: 54 to 68 square inches total Physical Dimensions Cutout Diameter: 16.81 in (427 mm) Mounting Depth: 9.96 in (253 mm) Outside Diameter: 18.47 in (469 mm) Motor Diameter: 16.61 in (422 mm) Net Weight: 34.2 lb Gross Weight: 38.5 lb Why You Should Buy Deep, powerful low-frequency performance True 1300W RMS output Flexible wiring Durable construction Carbon fiber dustcap Ideal Applications Daily-driven deep-bass systems Ported or sealed enclosures in SUVs, trucks, hatchbacks, and sedans Systems tuned in 28–35 Hz range SQL-style daily builds Users seeking high output at an affordable price View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DBz Ohm: 4 Subwoofer Size: 18 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

Description Warranty Information Additional Information 8 Reviews Description The DOWN4SOUND DBz-8 D4 is the ultimate budget banger designed to deliver exceptional performance and value. With a true 700W RMS power rating, this subwoofer provides big, punchy bass without the big price tag. Featuring a dual 4-ohm voice coil configuration, the DBz-8 offers versatile wiring options and strong output in compact enclosures. The real carbon fiber dustcap adds a premium aesthetic while increasing structural rigidity and performance. Every component is engineered for efficiency, durability, and long-term reliability, making the DBz-8 D4 an ideal upgrade for daily drivers, small-space installs, or budget-friendly high-output systems. Key Features 700W RMS power handling Dual 4-ohm voice coil design 2.5-inch high-temperature voice coil 21 mm Xmax for impressive linear travel Real carbon fiber dustcap for strength, rigidity, and premium appearance Advanced venting throughout the motor structure for improved cooling Heavy-duty construction optimized for compact high-output performance Technical Specifications (T/S Parameters) Revc (DC Resistance): 6.400 ohm Resonance Frequency (Fs): 46.157 Hz Qms: 1.895 Qes: 0.618 Qts: 0.466 Mms (Moving Mass): 202.138 g Cms (Compliance): 57.318 μm/N Rms (Mechanical Resistance): 0.757 Vas: 3.290 L Sd: 210.105 cm² BL Product: 24.797 T·m Sensitivity (SPL): 79.2 dB Xmax: 21 mm Displacement: 0.07 cu ft Engineering and Construction Compact, efficient motor engineered for strong output Rear gap ventilation for improved coil cooling and reduced thermal compression Reinforced suspension system for stable high-excursion performance Real carbon fiber dustcap enhances rigidity and prevents deformation Precision-wound 2.5" coil supports high power levels without heat fatigue Built to provide maximum performance at an affordable cost Recommended Enclosures Sealed Enclosure: 0.3 – 0.4 cu ft (net) Ported Enclosure: 0.75 – 1.0 cu ft (net) Recommended Tuning: 32 Hz Recommended Port Area: 9 – 15 sq in total Physical Dimensions Cutout Diameter: 7.32 in (186 mm) Mounting Depth: 6.61 in (168 mm) Outside Diameter: 8.71 in (221 mm) Motor Diameter: 6.69 in (170 mm) Net Weight: 23.6 lb (10.7 kg) Gross Weight: 26.9 lb (12.2 kg) Why You Should Buy the DBz-8 D4 High-quality bass on a budget Compact 8" form factor with strong low-end output Dual 4-ohm coils allow flexible wiring options Carbon fiber dustcap adds strength and a premium aesthetic Perfect blend of affordability, power, and durability Ideal Applications Daily-driven bass systems requiring big sound in tight spaces Builds tuned in the 28–35 Hz range , where the DBz-8 produces deep, rolling lows that come alive with real cabin gain Compact ported enclosures, under-seat installs, hatchbacks, and small SUV systems SQL-style daily setups emphasizing strong midbass punch with usable low-end authority Users wanting responsive, aggressive bass performance without needing a large enclosure View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DBz Ohm: 4 Subwoofer Size: 8 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 8 Reviews 4 8 inch sub Posted by Lance on Nov 22, 2025 They sound great but after 3 12,s it's not near the punch but they are taking a beating trying to get there 5 8” subs Posted by 8” subs on Aug 27, 2025 The quality is amazing, and they hit hard 5 Great small sub Posted by Andrew on Dec 19, 2024 These things are some beefy little 8" and for the money run with some more expensive brand big 8"s. Got 2 of these Paired with a D4s dual ported under seat enclosure for my buddy's truck and we were surprised at the output. For someone wanting a good decent 8" with good output and excursion these are it, might be getting so.e 15s for myself based on how much I like these. 5 Sounds great Posted by Brett on Dec 18, 2024 I have one of these in a CT Sounds slot port box on an NVX BDA7501 monoblock with a true RMS power output of 836watts. It gets low and loud. I installed it in my daughter's Buick Regal for her early Christmas present. She loves it and I'm impressed with how loud it is. 5 D4S 8s Posted by Rick Pena on Nov 21, 2024 Sounds great coming from a set of g5 and DC M48s. Sounds and hits just as good as 8s doubled the price. Been running them for 3 weeks to this day. I guess it's time to sale my DC 8s. 5 D4S 8s Posted by Rick Pena on Nov 21, 2024 Sounds great coming from a set of g5 and DC M48s. Sounds and hits just as good as 8s doubled the price. Been running them for 3 weeks to this day. I guess it's time to sale my DC 8s. 5 Bangers Posted by Don Kelley on Nov 12, 2024 Made the jump from 2 shallow 10’s to 2 8’s. After breaking them in for a few days, these guys are pounding the lows. I need more amp to push them harder. 5 DBZ 8 Posted by Rick Pena on Nov 08, 2024 What a great sub. Paired up with the jp23 v1.5 at 1 ohm. This sub has exceeded my expectations especially for the price. View All Close

Description Warranty Information Additional Information 8 Reviews Description The DOWN4SOUND DVX-12 D2 is engineered for listeners who demand authoritative, precise, and durable low-frequency performance in a compact footprint. Built with a high-strength motor, extended mechanical throw, and a real carbon fiber dustcap, the DVX-12 delivers exceptional output and accuracy suitable for daily driving, demonstration builds, and high-power systems. This model provides a true 1700W RMS power rating and a dual 2-ohm voice coil configuration for flexible amplifier matching and wiring options. Every component is designed for efficiency, cooling, and long-term reliability under significant sound pressure levels. Key Features 1700W RMS power handling Dual 2-ohm voice coil design 3-inch high-temperature voice coil 33 mm one-way Xmax for extended linear travel Full carbon fiber dustcap for strength and rigidity Advanced venting throughout the motor structure for improved cooling Heavy-duty construction designed for high-output applications 8.66-inch (220 mm) motor diameter Highly extended pole piece for increased linear throw Pole vent flared on both ends for superior airflow and low noise Technical Specifications (T/S Parameters) Revc (DC Resistance): 3.790 ohm Resonance Frequency (Fs): 38.387 Hz Qms: 2.981 Qes: 0.504 Qts: 0.431 Mms (Moving Mass): 350.780 g Cms (Compliance): 49.823 μm/N Rms (Mechanical Resistance): 0.827 Vas: 138.126 L Sd: 43.374 cm² BL Product: 26.202 T·m Sensitivity (SPL): 83.5 dB Xmax: 33 mm Displacement: 0.15 cu ft Engineering and Construction Extended pole piece for improved linear performance and mechanical control Dual-flared pole venting for low-noise airflow and efficient heat removal Rear gap ventilation for reduced voice coil temperatures during sustained playback 8.66-inch (220 mm) motor diameter for substantial magnetic strength Long-fiber spider system for reliable, consistent suspension behavior Carbon fiber dustcap for reduced moving mass and enhanced rigidity Recommended Enclosure Ported Enclosure: Volume: 2.5 cubic feet (net) Tuning Frequency: 32 Hz This alignment provides strong low-frequency extension, balanced output, and low distortion suitable for daily music listening and high-output builds. Physical Dimensions Cutout Diameter: 11.14 in (283 mm) Mounting Depth: 9.37 in (238 mm) Outside Diameter: 12.44 in (316 mm) Motor Diameter: 8.66 in (220 mm) Weight: 60 lb Why Choose the DVX-12 D2 High output capability with accurate, controlled low-frequency reproduction Durable design optimized for long-term performance in demanding systems Flexible wiring thanks to the dual 2-ohm voice coils Real carbon fiber dustcap adds both strength and professional appearance Designed for users who require deep, powerful bass without sacrificing clarity Ideal Applications Daily music systems High-power demo builds Trunk or SUV installations SQL (Sound Quality Loud) and SPL-leaning setups Users seeking punchy, strong low-end response in the 30–50 Hz range View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DVX Ohm: 2 Subwoofer Size: 12 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 8 Reviews 5 Very Nice Subs they get low!! Posted by Jeremiah Shead on Feb 09, 2026 It's a very nice sub pictures dont do it justice. I have 2 DVX's 12 inch with a big 3 with a jp33 and a coustom box they are the truth!! 5 DOWN4SOUND DVX 12" SUBWOOFER - 2 OHM DVC | 1700W RMS Posted by Jose Morales on Jun 24, 2025 I love it, this sub looks an sound amazing 3 Subwoofer Posted by Darrell Mitchell on May 29, 2025 Thought it would handle a little more wattage but I’m ready for the new version! Not turning to a different brand!!! ? 5 Really good Posted by Camarllo McDonald on Mar 07, 2025 Recommend them they’re really loud good for the money 5 DVX 12 Posted by Brian on Feb 13, 2025 I have 2 of these in a custom enclosure on a jp63 at a half ohm amd they are bad as a hell. Produce MAJOR lows and my box isn't even tuned tht low 33hz. They still also have a ton of tht punch tht some ppl seem to worry they will lose with an spl type sub. Plus the carbon fiber dust cap with the raised D4S logo is beautiful. Buy them while you can especially with the tax return sale price. 5 Awesome sub for the low'zzzzz Posted by Marshall on Feb 06, 2025 This sub is badass but it's hungry. I have one in a single cab 24 Silverado with a JP23 v.2 and it's snacking on that amp. Make sure your electrical is good and you won't be disappointed. 5 DVX 12 dual 2 ohm Posted by Philip R. on Jan 16, 2025 This sub produces deep low bass is some frequencies you can only feel . I was running another decent quality sub i will not bad mouth . It was good . But the DVX is o-h s-o much better. Cleaner and lower with clarity you can hear . I am so pleased with the sub I'm making the effort to go ahead and upholster my enclosure and showcase the equipment i have. I paired the DVX with the JP 23 V 1 . I believe it was a match made in bass head heaven . A perfect match . Thanks Jp . So many people like to complain in the world we live in today. You have done nothing but take care of me and I appreciate you. I'm not rich but and can't afford to spend a fortune on a stereo for my car and SUV but you will always have my business. Thank you . You are the best. 5 It’s loud and doesn’t bottom out! Posted by Ethan stewart on Dec 23, 2024 I’m still breaking it in, but I have mounted mine inverted and at some tones you can hear the coil making little noises wouldn’t be noticeable if it was mounted regularly but it takes power really well no clipping and no bottoming out it’s loud as hell! Ds18 180ah agm dual1/0 ofc Jp23v2 single dvx12 wired at 1ohm inverted in a 2.7 cuft box tuned at 30 hz View All Close

Description Warranty Information Additional Information 4 Reviews Description The DOWN4SOUND DVX-12 D4 is engineered for listeners who demand authoritative, precise, and durable low-frequency performance. Built with a high-strength motor, extended mechanical throw, and a real carbon fiber dustcap, the DVX-12 delivers exceptional output and accuracy suitable for daily driving, demonstration builds, and high-power systems. This model provides a true 1700W RMS power rating and a dual 4-ohm voice coil configuration for flexible amplifier matching and wiring options. Every component is designed for efficiency, cooling, and long-term reliability under significant sound pressure levels. Key Features 1700W RMS power handling Dual 4-ohm voice coil design 3-inch high-temperature voice coil 33 mm one-way Xmax for extended linear travel Full carbon fiber dustcap for strength and rigidity Advanced venting throughout the motor structure for improved cooling 60-lb heavy-duty construction designed for high output applications 8.66-inch (220 mm) motor diameter Highly extended pole piece for increased linear throw and durability Pole vent flared on both ends for superior airflow and low noise Technical Specifications (T/S Parameters) Revc (DC Resistance): 6.050 ohm Resonance Frequency (Fs): 38.950 Hz Qms: 3.083 Qes: 0.600 Qts: 0.503 Mms (Moving Mass): 330.308 g Cms (Compliance): 50.549 μm/N Vas: 138.504 L Sd: 43.374 cm² BL Product: 28.541 T·m Sensitivity (SPL): 83.1 dB Xmax: 33 mm (one-way, mechanical) Displacement: 0.15 cu ft Engineering and Construction Extended pole piece for improved linear performance and mechanical control Dual-flared pole venting for low-noise airflow and efficient heat removal Rear gap ventilation for reduced voice coil temperatures during sustained playback 8.66-inch (220 mm) motor diameter for substantial magnetic strength Long-fiber spider system for reliable, consistent suspension behavior Carbon fiber dustcap for reduced moving mass and enhanced cone rigidity Recommended Enclosure Ported Enclosure: Volume: 2.5 cubic feet (net) Tuning Frequency: 32 Hz This alignment provides strong low-frequency extension, balanced output, and low distortion suitable for daily music listening and high-output builds. Physical Dimensions Cutout Diameter: 11.14 in (283 mm) Mounting Depth: 9.37 in (238 mm) Outside Diameter: 12.44 in (316 mm) Motor Diameter: 8.66 in (220 mm) Weight: 60 lb Why Choose the DVX-12 D4 High output capability with accurate, controlled low-frequency reproduction Durable design optimized for long-term performance in demanding systems Flexible wiring thanks to the dual 4-ohm voice coils Real carbon fiber dustcap adds both strength and professional appearance Designed for users who require deep, powerful bass without sacrificing clarity Ideal Applications Daily music systems High-power demo builds Trunk or SUV installations SQL (Sound Quality Loud) and SPL-leaning setups View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DVX Ohm: 4 Subwoofer Size: 12 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 4 Reviews 5 My thoughts on the DVX 12’s Posted by Garrett Garrison on Mar 23, 2026 I’ve had a lot of top end subwoofers over the years, grant it I’m not a professional but I can hear the difference in a quality subwoofer and a cheap subwoofer. These subs have blown my mind since day one. I love the looks of them and in the right box they get down even on not so great electrical. I’ve got an RP4500 pushing my 2 dvx’s and they want more. So will be upgrading to 2 lithium instead of one and a bigger amp. Thank you down 4 sound for the great products. 5 Awesome Posted by Pate Stanley on Jan 20, 2026 Deep Bass sounds great 5 Love this Subwoofer Posted by Rodrigo Villarreal on Jan 23, 2025 A amazing subwoofer, recently upgraded to these and a day and night difference. paired it with a JP33 and now my truck feels and sounds like a completely different vehicle. plan on doing a blow through and upgrading to 2 of these ? 5 D4s Dvx subwoofers Posted by Paul Smith on Sep 23, 2024 I personally can not WAIT repeat WAIT till these come out PERIOD!!!!!! I THINK in my opinion these are going to be a GAME CHANGER!!!! I am going to be first one to get these for my PSYCHOTIC CIVIC BUILD. My whole system except my components will be all DOWN4SOUND. It will be MIGRAINE IN THE MEMBRANE FOR SURE!!! Down4sound for life!!!! DOWN4SOUND GIVIN OUT BEATDOWNS BOOM ? YOUR DONE!! TAKE CARE JP GOD BLESS YOU MAN ?!!! View All Close

Description Warranty Information Additional Information 3 Reviews Description The DOWN4SOUND DVX-15 D4 is engineered for listeners who demand authoritative, precise, and durable low-frequency performance. Built with a high-strength motor, extended mechanical throw, and a real carbon fiber dustcap, the DVX-15 delivers exceptional output and accuracy suitable for daily driving, demonstration builds, and high-power systems. This model provides a true 1700W RMS power rating and a dual 4-ohm voice coil configuration for flexible amplifier matching and wiring options. Every component is designed for efficiency, cooling, and long-term reliability under significant sound pressure levels. Key Features 1700W RMS power handling Dual 4-ohm voice coil design 3-inch high-temperature voice coil 33 mm one-way Xmax for extended linear travel Full carbon fiber dustcap for strength and rigidity Advanced venting throughout the motor structure for improved cooling 65-lb heavy-duty construction designed for high output applications Technical Specifications (T/S Parameters) Revc (DC Resistance): 6.050 ohm Resonance Frequency (Fs): 30.413 Hz Qms: 2.732 Qes: 0.534 Qts: 0.447 Mms (Moving Mass): 387.231 g Cms (Compliance): 70.720 μm/N Rms (Mechanical Resistance): 0.803 Vas: 53.606 L Sd: 73.062 cm² BL Product: 28.948 T·m Sensitivity (SPL): 86.4 dB Xmax: 33 mm Displacement: 0.20 cu ft Engineering and Construction Extended pole piece for improved linear performance and mechanical control Dual-flared pole venting for low noise airflow and efficient heat removal Rear gap ventilation for reduced voice coil temperatures during sustained playback 8.66-inch (220 mm) motor diameter for substantial magnetic strength Long-fiber spider system for reliable, consistent suspension behavior Carbon fiber dustcap for reduced moving mass and enhanced cone rigidity Recommended Enclosure Ported Enclosure: Volume: 4.5 cubic feet (net) Tuning Frequency: 32 Hz This alignment provides strong low-frequency extension, balanced output, and low distortion suitable for daily music listening and high-output builds. Physical Dimensions Cutout Diameter: 14.17 in (360 mm) Mounting Depth: 10.63 in (270 mm) Outside Diameter: 15.59 in (396 mm) Weight: 65 lb Why Choose the DVX-15 D4 High output capability with accurate, controlled low-frequency reproduction Durable design optimized for long-term performance in demanding systems Flexible wiring thanks to the dual 4-ohm voice coils Real carbon fiber dustcap adds both strength and professional appearance Designed for users who require deep, powerful bass without sacrificing clarity Ideal Applications Daily music systems High-power demo builds Trunk or wall installations SQL (Sound Quality Loud) and SPL-leaning setups Users seeking strong low-end response View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DVX Ohm: 4 Subwoofer Size: 15 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 3 Reviews 5 DVX! Posted by Mason Bukovich on Sep 11, 2025 If you are looking for a woofer that'll move hair and choke you out. Look no further! These dvxs are incredible woofers. Currently have 2 15 dvxs in my 2012 sonata hybrid and im doing a 156! Highly recommend! 5 badass subs forsure Posted by roger sutherland on Mar 08, 2025 just purchased 6 of these subs going in a 4th order powered by 3 jp73s super excited to get this build completed. 5 15" beast Posted by Eric Dye on Nov 19, 2024 Love these! Installed a couple for a client, so happy ,they want more! I'm gonna get my funding and load up! View All Close

Description Warranty Information Additional Information 0 Reviews Description The DOWN4SOUND DVX-18 D2 is engineered for listeners who demand authoritative, precise, and durable low-frequency performance. Built with a massive high-strength motor, extended mechanical throw, and a real premium carbon fiber dustcap, the DVX-18 delivers exceptional output and accuracy suitable for daily driving, demonstration builds, and high-power systems. This model provides a true 1700W RMS power rating and a dual 2-ohm voice coil configuration for flexible amplifier matching and wiring options. Every component is designed for efficiency, cooling, and long-term reliability under significant sound pressure levels. Key Features 1700W RMS power handling Dual 2-ohm voice coil design 3-inch high-temperature voice coil 33 mm one-way Xmax for extended linear travel Full carbon fiber dustcap for strength, rigidity, and premium appearance Advanced venting throughout the motor structure for improved cooling 68-lb heavy-duty construction designed for extreme output applications 8.66-inch (220 mm) motor diameter Highly extended pole piece for increased linear throw and durability Pole vent flared on both ends for superior airflow and low noise Technical Specifications (T/S Parameters) Revc (DC Resistance): 3.790 ohm Resonance Frequency (Fs): 29.859 Hz Qms: 3.017 Qes: 0.559 Qts: 0.472 Mms (Moving Mass): 504.787 g Cms (Compliance): 56.284 μm/N Rms (Mechanical Resistance): 0.799 Vas: 102.798 L Sd: 113.411 cm² BL Product: 26.334 T·m Sensitivity (SPL): 88.8 dB Xmax: 33 mm Displacement: 0.23 cu ft Engineering and Construction Extended pole piece for improved linear performance and mechanical control Dual-flared pole venting for low-noise airflow and efficient heat removal Rear gap ventilation for reduced voice coil temperatures during sustained playback 8.66-inch (220 mm) motor diameter for substantial magnetic strength Long-fiber spider system for reliable, consistent suspension behavior Premium carbon fiber dustcap for enhanced strength and reduced moving mass Recommended Enclosure Ported Enclosure: Volume: 7 cubic feet (net) Tuning Frequency: 28–32 Hz This alignment provides deep low-frequency extension, high output, and low distortion suitable for daily music listening and large-cabin high-power builds. Physical Dimensions Cutout Diameter: 17.00 in (431.8 mm) Mounting Depth: 11.81 in (300 mm) Outside Diameter: 18.49 in (469 mm) Motor Diameter: 8.66 in (220 mm) Weight: 68 lb Why Choose the DVX-18 D2 Extreme output capability with accurate, controlled low-frequency reproduction Durable construction optimized for long-term performance in demanding systems Flexible wiring thanks to the dual 2-ohm voice coils Real carbon fiber dustcap adds both strength and a premium visual finish Designed for users who require deep, powerful bass without sacrificing clarity Ideal Applications Large-cabin daily music systems High-power demo builds Trunk, wall, or 4th/6th-order enclosures SQL (Sound Quality Loud) and SPL-leaning setups Users seeking powerful low-end performance in the 25–45 Hz range View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DVX Ohm: 2 Subwoofer Size: 18 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

Description Warranty Information Additional Information 0 Reviews Description The DOWN4SOUND DVX-18 D4 is engineered for listeners who demand authoritative, precise, and durable low-frequency performance. Built with a massive high-strength motor, extended mechanical throw, and a real premium carbon fiber dustcap, the DVX-18 delivers exceptional output and accuracy suitable for daily driving, demonstration builds, and high-power systems. This model provides a true 1700W RMS power rating and a dual 4-ohm voice coil configuration for flexible amplifier matching and wiring options. Every component is designed for efficiency, cooling, and long-term reliability under significant sound pressure levels. Key Features 1700W RMS power handling Dual 4-ohm voice coil design 3-inch high-temperature voice coil 33 mm one-way Xmax for extended linear travel Full carbon fiber dustcap for strength and rigidity Advanced venting throughout the motor structure for improved cooling 68-lb heavy-duty construction designed for extreme output applications 8.66-inch (220 mm) motor diameter Highly extended pole piece for increased linear throw Pole vent flared on both ends for superior airflow and low noise Technical Specifications (T/S Parameters) Revc (DC Resistance): 6.050 ohm Resonance Frequency (Fs): 28.036 Hz Qms: 3.012 Qes: 0.659 Qts: 0.541 Mms (Moving Mass): 492.526 g Cms (Compliance): 56.483 μm/N Rms (Mechanical Resistance): 0.803 Vas: 119.508 L Sd: 113.411 cm² BL Product: 28.212 T·m Sensitivity (SPL): 87.9 dB Xmax: 33 mm Displacement: 0.23 cu ft Engineering and Construction Extended pole piece for improved linear performance and mechanical control Dual-flared pole venting for low-noise airflow and efficient heat removal Rear gap ventilation for reduced voice coil temperatures during sustained playback 8.66-inch (220 mm) motor diameter for substantial magnetic strength Long-fiber spider system for reliable, consistent suspension behavior Carbon fiber dustcap for reduced moving mass and enhanced rigidity Recommended Enclosure Ported Enclosure: Volume: 7 cubic feet (net) Tuning Frequency: 28–32 Hz This alignment provides deep low-frequency extension, high output, and low distortion suitable for daily music listening and large-cabin high-power builds. Physical Dimensions Cutout Diameter: 17.00 in (431.8 mm) Mounting Depth: 11.81 in (300 mm) Outside Diameter: 18.49 in (469 mm) Motor Diameter: 8.66 in (220 mm) Weight: 68 lb Why Choose the DVX-18 D4 Extreme output capability with accurate, controlled low-frequency reproduction Durable construction optimized for long-term performance in demanding systems Flexible wiring thanks to the dual 4-ohm voice coils Real carbon fiber dustcap adds both structural strength and a premium appearance Designed for users who require deep, powerful bass without sacrificing clarity Ideal Applications Large-cabin daily music systems High-power demo builds Trunk, wall, or 4th/6th-order enclosures SQL (Sound Quality Loud) and SPL-leaning setups Users seeking strong low-end response in the 25–45 Hz range View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: DVX Ohm: 4 Subwoofer Size: 18 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

Description Warranty Information Additional Information 2 Reviews Description Upgrade your car audio experience with the DOWN4SOUND SB-10 Subwoofer, built to deliver precise, deep bass and exceptional clarity. Featuring a dual 4-ohm voice coil configuration and 500W RMS power handling, this subwoofer offers a perfect balance of compact design, durability, and high-performance audio. Engineered with a highly optimized suspension system and robust motor assembly, the SB-10 D4 is ideal for versatile installations and daily high-output use. Key Features 500W RMS power handling Dual 4-ohm voice coil configuration 2.5-inch high-temperature voice coil 21 mm one-way Xmax Highly optimized suspension Compact design suitable for versatile installs Technical Specifications (T/S Parameters) Revc (DC Resistance): 4.030 ohm Resonance Frequency (Fs): 37.717 Hz Qms: 3.510 Qes: 0.486 Qts: 0.427 Mms (Moving Mass): 158.478 g Cms (Compliance): 158.882 μm/N Rms: 0.740 Vas: 25.653 L Sd: 333.654 cm² BL Product: 16.190 T·m Sensitivity (SPL): 84.1 dB Xmax: 21 mm Displacement: 0.09 cu ft Engineering and Construction Optimized suspension for accurate bass reproduction Vented motor system for improved cooling Precision-wound 2.5-inch voice coil Durable cone and surround assembly Compact motor design optimized for output and control Recommended Enclosures Ported: 1.0 cu ft (net) Port Area: 15 sq in Tuning: 35 Hz Sealed: Not recommended Physical Dimensions Cutout Diameter: 9.06 in (230 mm) Outside Diameter: 10.28 in (261 mm) Mounting Depth: 6.46 in (164 mm) Motor Height: 3.54 in (90 mm) Net Weight: 21.9 lb Gross Weight: 25.2 lb Why You Should Buy Powerful performance in a compact design Dual 4-ohm coils enable flexible wiring options Built for durability and long-term use Optimized suspension delivers clean, precise low-frequency output Ideal Applications Ported enclosures for strong, accurate bass output Tight installs needing high-performance low-frequency response Daily-driven systems seeking clean, controlled bass Builds requiring flexible wiring and reliable performance View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: SB Ohm: 4 Subwoofer Size: 10 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 2 Reviews 5 Sb10 d4 Posted by Jimmy Barrett on Oct 27, 2025 Great sounding subs i installed the in a f150 Foxbox they fit perfectly 5 SB 10d4 Posted by Pete Kaltsas on Feb 20, 2025 These things have great sound quality. They hit hard and fast. Bass you can feel! Well worth the money. I’m thinking they’re are conservatively rated. They are still breaking in and sound better and better every day. I’m impressed thus far. View All Close

Description Warranty Information Additional Information 5 Reviews Description Experience the perfect blend of power and precision with the DOWN4SOUND SB-12 Subwoofer, designed for enthusiasts who crave deep, clean bass. Featuring a dual 4-ohm voice coil configuration and 500W RMS power handling, this subwoofer is optimized for versatile setups and delivers consistent low-frequency performance. Its durable construction ensures long-lasting reliability, making it ideal for daily-driven systems and high-performance builds. Key Features 500W RMS power handling Dual 4-ohm voice coil design 2.5-inch high-temperature voice coil 21 mm one-way Xmax Highly optimized suspension Versatile design suitable for various installs Technical Specifications (T/S Parameters) Revc (DC Resistance): 6.130 ohm Resonance Frequency (Fs): 29.890 Hz Qms: 3.624 Qes: 0.602 Qts: 0.516 Mms (Moving Mass): 215.963 g Cms (Compliance): 131.189 μm/N Rms: 0.764 Vas: 48.592 L Sd: 510.071 cm² BL Product: 20.324 T·m Sensitivity (SPL): 85.2 dB Xmax: 21 mm Displacement: 0.15 cu ft Engineering and Construction Optimized suspension for precise bass control Vented motor for improved thermal management Precision-wound 2.5-inch coil Durable cone and surround assembly Efficient motor design for controlled low-frequency performance Recommended Enclosures Ported: 1.75 cu ft (net) Port Area: 26 sq in Port Tuning: 35 Hz Sealed: Not recommended Physical Dimensions Cutout Diameter: 10.87 in (276 mm) Outside Diameter: 12.44 in (316 mm) Mounting Depth: 6.81 in (173 mm) Motor Height: 3.54 in (90 mm) Net Weight: 22.05 lb Gross Weight: 27.4 lb Why You Should Buy Reliable 500W RMS performance Flexible dual 4-ohm wiring options Accurate, clean low-frequency output Durable construction built for long-term use Ideal Applications Ported enclosures for deep, controlled bass Daily-driven vehicles needing accurate LF response SUVs, sedans, hatchbacks, and trucks Users seeking dependable, space-efficient bass performance View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: SB Ohm: 4 Subwoofer Size: 12 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 5 Reviews 5 Hardest hitting Sub i've ever owned Posted by Unknown on Sep 29, 2025 This thing hits hard paired up with a JP8. My only regret is not getting the 2 OHM DVC model. Though I was originally going to use this with my old amplifier which only supported down to 2 OHM. Highly recommend, if you are looking. 5 Down4sound SB 12 500w subwoofer Posted by Richard on Sep 21, 2025 These subs definitely bang for the price I am totally satisfied with my purchase if you wanna bang on a budget these are the subs to get I have mine paired with a jp23 and they take every bit of power it's putting out. 5 sb12s Posted by jeremy evans on Mar 08, 2025 Best budget 500 watt sub you can get love them!!!! 5 sb12s Posted by jeremy evans on Feb 24, 2025 Ended up getting 2 of the sb12s man they get loud and low gta love them. If you wanna get loud for cheap these are the subs for you. 5 Down4sound Sb 12s Posted by Paul Smith on Jan 16, 2025 I have to start off by saying Jp has done it again!!! Just when you think it can't get any better Jp BLOWS PEOPLE'S MINDS AGAIN!! If this doesn't get you in the bass game I don't know what will. Here we go: 2 street beat 12s in a profab on a jp8 at 1ohm, a jp84 for the highs,a 4ga ofc amp kit ,sundown saz 4ch rcas ,and 4 jpfx65s and BOOM ? you have a FANTASTIC SYSTEM you can enjoy all day and not BREAK THE BANK!! YOUR WELCOME JP!! View All Close

Description Warranty Information Additional Information 2 Reviews Description Experience powerful, deep, and accurate bass with the DOWN4SOUND SB-15 Subwoofer, designed for enthusiasts who demand strong low-frequency output in a versatile, durable design. Featuring a dual 4-ohm voice coil configuration and 500W RMS power handling, the SB-15 D4 delivers clean, controlled bass suitable for daily-driven systems and performance-focused builds. Its optimized suspension and robust motor structure ensure reliability and consistent performance. Key Features 500W RMS power handling Dual 4-ohm voice coil configuration 2.5-inch high-temperature voice coil 21 mm one-way Xmax Highly optimized suspension Versatile design for a wide range of installs Technical Specifications (T/S Parameters) Revc (DC Resistance): 6.130 ohm Resonance Frequency (Fs): 31.067 Hz Qms: 4.301 Qes: 0.939 Qts: 0.771 Mms (Moving Mass): 277.986 g Cms (Compliance): 94.477 μm/N Rms: 0.736 Vas: 92.878 L Sd: 582.958 cm² BL Product: 18.818 T·m Sensitivity (SPL): 86.6 dB Xmax: 21 mm Displacement: 0.19 cu ft Engineering and Construction Optimized suspension for clean, accurate bass Vented motor for improved heat management Precision-wound 2.5-inch coil Durable cone and surround assembly Efficient motor design for controlled LF performance Recommended Enclosures Ported: 3.0 cu ft (net) Port Area: 32 sq in Port Tuning: 32 Hz Sealed: Not recommended Physical Dimensions Cutout Diameter: 13.62 in (346 mm) Outside Diameter: 15.51 in (394 mm) Mounting Depth: 7.10 in (180 mm) Motor Height: 3.54 in (90 mm) Net Weight: 23.15 lb Gross Weight: 25.35 lb Why You Should Buy Powerful, clean bass performance Dual 4-ohm coils provide flexible wiring options Durable construction for long-term reliability Accurate and controlled low-frequency output Ideal Applications Ported enclosures delivering deep, strong bass Daily drivers needing accurate LF response SUVs, sedans, hatchbacks, and trucks Users wanting high output without oversized power demands View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: SB Ohm: 4 Subwoofer Size: 15 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 2 Reviews 5 Sb 15" dual 4 Posted by Miguel on Mar 06, 2026 Wow im in love of how hard they hit its the first time me using this speaker ? I would definitely keep with team down4sound 5 Down4Sound SB 15 Posted by Kaleb Brucker on Aug 30, 2025 i bought 2 of these for my living room, (lil overkill prolly) got a JP95t with JBL stadium 6x9, These 15s really fill the house up with bass, even at very low volume, if you cant hear it, u can feel it. haven't really had them turned up do to it all in a house and doesn't need to be that loud, But for the price and quality, i love them View All Close

Description Warranty Information Additional Information 3 Reviews Description Experience compact yet powerful bass performance with the DOWN4SOUND SB-8 Subwoofer, designed for car audio enthusiasts who demand clean and impactful sound in a smaller footprint. Featuring a dual 4-ohm voice coil configuration and true 500W RMS power handling, this 8-inch subwoofer is ideal for tight installations and high-performance daily systems. A refined suspension system and durable motor assembly ensure reliable, accurate bass and long-term performance. Key Features 500W RMS power handling Dual 4-ohm voice coil configuration 2.5-inch high-temperature voice coil 21 mm one-way Xmax Highly optimized suspension Compact design ideal for tight installations Technical Specifications (T/S Parameters) Revc (DC Resistance): 5.800 ohm Resonance Frequency (Fs): 39.620 Hz Qms: 3.118 Qes: 0.657 Qts: 0.543 Mms (Moving Mass): 133.659 g Cms (Compliance): 120.732 μm/N Rms: 0.773 Vas: 9.330 L Sd: 210.106 cm² BL Product: 17.140 T·m Sensitivity (SPL): 80.0 dB Xmax: 21 mm Displacement: 0.07 cu ft Mounting Depth: 4.98 inches Engineering and Construction Optimized suspension for accurate low-frequency reproduction Vented motor for improved heat dissipation Precision-wound 2.5-inch voice coil Durable cone and surround assembly Compact motor optimized for tight-space performance Recommended Enclosures Ported: 0.65 cu ft (net) Port Area: 9 sq in Tuning: 35 Hz Sealed: Not recommended Physical Dimensions Cutout Diameter: 7.09 in (180 mm) Outside Diameter: 8.50 in (216 mm) Mounting Depth: 4.98 in (126.5 mm) Motor Height: 2.36 in (60 mm) Net Weight: 30 lb Gross Weight: 33.1 lb Why You Should Buy Compact powerhouse delivering solid, clean bass Durable design built for long-term performance Dual 4-ohm coils offer flexible wiring options Accurate and controlled sound reproduction Ideal Applications Tight-space installations in cars, trucks, and SUVs Ported designs needing strong output and accuracy Daily-driven systems seeking clean, punchy bass Users wanting high performance from a compact 8-inch sub View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: SB Ohm: 4 Subwoofer Size: 8 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 3 Reviews 5 DOWN4SOUND SB 8" SUBWOOFER Posted by Jimmy Barrett on Mar 18, 2026 Great subs they sound amazing and handles way more power than 500 watts 5 Good little 8" subwoofer Posted by Unknown on Mar 04, 2026 I am impressed with these subwoofers I have 2 of them in a dual ported box tuned to 38hz and there louder than I thought they would be I highly recommend these subs and budget price best bang for your buck. I have them powerd by a d4s mm1000 amplifier. 5 SB8-D2 Posted by Nathan L. on Feb 08, 2025 This thing is a little monster and you are not gonna find a equivalent sub anywhere at this price and probably the biggest value yet....other than Black Friday when I got a JP23v2 for $230. Couple things I'd like to see is the X-max labeled in the specs and I noticed all the weights are off. Almost seems like on each size the weight is for 2 subs. Regardless the fact you can get a 16lb 8" for under a Ben is pretty awesome! View All Close

Description Warranty Information Additional Information 0 Reviews Description DOWN4SOUND TCX 10” Subwoofer D1 – 2700W RMS High-Output Car Audio Sub The DOWN4SOUND TCX 10” Subwoofer D1 is engineered for extreme output in tight spaces, delivering massive pressure with precise control. Designed for serious daily drivers and demo systems, the TCX 10 combines high thermal stability, aggressive motor force, and long-throw suspension to produce clean, authoritative low-end without compromise. At its core is a 3-inch 8-layer flat aluminum voice coil paired with a carbon fiber cone and a heavy-duty 5-stack Y35 ferrite motor. The result is a compact yet brutally capable subwoofer built to handle real power and sustained abuse while maintaining control and reliability. Key Features 2700W RMS power handling Dual 1-ohm voice coil (D1) 3-inch 8-layer flat aluminum voice coil Carbon fiber cone for rigidity and low distortion ~33 mm one-way Xmax Heavy-duty 5-stack Y35 ferrite motor Stitched high-roll surround Triple-spider suspension system Fully vented motor and backplate for enhanced cooling Technical Specifications (T/S Parameters) Resonance Frequency (Fs): 39.97 Hz Qms: 3.586 Qes: 0.463 Qts: 0.410 Moving Mass (Mms): 430.9 g Compliance (Cms): 36.79 µm/N Vas: 6.89 L Sd: 113.41 cm² BL Product: 20.51 T·m Sensitivity (SPL): 81.6 dB Xmax: ~33 mm (one-way) Displacement: 0.23 cu ft Engineering and Construction Extended pole piece for controlled long-throw excursion Dual flared pole vent for smooth, quiet airflow Fully vented motor structure and backplate Precision-wound 3-inch 8-layer flat aluminum bifilar voice coil Anodized aluminum former for improved heat dissipation Carbon fiber cone minimizes flex under extreme load Designed for long-term thermal stability at high output Recommended Enclosure Ported enclosure volume: 1.25 – 1.75 cu ft Recommended tuning frequency: 34 Hz Optimized for tight, aggressive bass in compact systems Physical Dimensions (Key Installation Specs) Cutout Diameter: 10.03 in (255 mm) Overall Diameter (Top Gasket): 11.42 in (290 mm) Mounting Depth: 11.50 in (292 mm) Motor Diameter: 10.28 in (261 mm) Net Weight: 97.66 lb Gross Weight: 102.5 lb View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: TCX Ohm: 1 Subwoofer Size: 10 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

Description Warranty Information Additional Information 0 Reviews Description The DOWN4SOUND TCX-12 D2 is engineered for extreme output, thermal efficiency, and structural control. Designed to thrive in high-current systems, this 12-inch subwoofer delivers a massive 2700W RMS while keeping the cone stable and the motor cool under aggressive use. Built around a 3-inch 8-layer flat aluminum voice coil , carbon fiber cone, and a 5-stack Y35 motor , the TCX-12 D2 is optimized for 2-ohm loads , high excursion, and sustained high-power play. Whether it’s a daily street build or a demo enclosure, this sub brings controlled violence on demand. Key Features 2700W RMS power handling Dual 2-ohm voice coil (D2) 3-inch 8-layer flat aluminum voice coil Carbon fiber cone ~39 mm one-way Xmax 5-stack Y35 heavy-duty motor Stitched high-roll surround Triple-spider suspension Fully vented motor & backplate for cooling Technical Specifications (T/S Parameters) Resonance Frequency (Fs): 36.216 Hz Qms: 4.697 Qes: 0.561 Qts: 0.492 Mms (Moving Mass): 507.764 g Cms (Compliance): 44.038 μm/N Vas: 10.506 L Sd: 113.411 cm² BL Product: 27.834 T·m Sensitivity (SPL): 83.1 dB Xmax: ~39 mm (one-way) Displacement: 0.25 cu ft Engineering and Construction Extended pole piece for linear travel Dual flared pole vent for smooth cooling airflow Fully vented motor and backplate for thermal stability Triple-spider suspension for cone control at high excursion Precision-wound 3″ 8-layer flat aluminum voice coil (bifilar) on a 0.3 mm anodized aluminum former Carbon fiber cone for rigidity and reduced flex Built to survive high power, long sessions, and real-world abuse Recommended Enclosure Ported: 2.0 – 2.5 cu ft Recommended Tuning: 32 Hz Optimized for deep, aggressive bass with strong control and efficiency Physical Dimensions (Key Installation Specs) Mounting Cutout Diameter (Through Cut): 10.83 in (275 mm) Overall Cutout Diameter (Flush-Mount Recess): 12.32 in (313 mm) Mounting Depth: 12.126 in (308 mm) Motor Diameter: 10.275 in (261 mm) Net Weight: 98.77 lb Gross Weight: 104.3 lb Why You Should Buy 2700W RMS output from a true 12-inch platform Designed for high-current, low-impedance systems Excellent thermal management and mechanical control Carbon fiber cone + triple spider = stability under abuse Built for enthusiasts chasing maximum output with control Ideal Applications High-power daily-driven systems Demo and street-slam builds Vehicles with upgraded electrical and limited enclosure space Builders who want brutal output without losing control Systems where normal 12s simply aren’t enough View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: TCX Ohm: 2 Subwoofer Size: 12 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

Description Warranty Information Additional Information 0 Reviews Description The DOWN4SOUND TCX 15” Subwoofer D2 is engineered for high-performance bass with long-lasting durability. Whether you’re building a street banger or a full demo wall, the TCX-15 D2 delivers aggressive output with clean, deep low-frequency response. With a true 2700W RMS rating, a 3-inch 8-layer flat aluminum voice coil , carbon fiber cone , and a massive 5-stack Y35 ferrite motor , this subwoofer delivers the perfect balance of power, control, and precision. A vented backplate, rear gap venting, and dual flared pole vents keep the coil running cool even during sustained high-power use. Key Features 2700W RMS power handling Dual 2-ohm voice coil (D2) 3-inch 8-layer flat aluminum voice coil Carbon fiber cone ~39 mm one-way Xmax 5-stack Y35 heavy-duty motor Stitched high-roll surround Triple-spider suspension Rear gap and fully vented motor & backplate for cooling Technical Specifications (T/S Parameters) Resonance Frequency (Fs): 28.9 Hz Qms (Mechanical Q): 4.91 Qes (Electrical Q): 0.50 Qts (Total Q): 0.46 Total Moving Mass (Mms): ~608.7 g Suspension Compliance (Cms): ~49.8 μm/N Equivalent Volume (Vas): ~37.7 L Sensitivity (SPL): 84.3 dB @ 1W / 90.5 dB @ 2.83V Xmax: ~39 mm (one-way) Driver Displacement: ~0.22 cu ft Engineering and Construction Extended pole piece for clean, linear throw Dual flared pole vents for reduced turbulence Rear gap and motor venting for improved thermal regulation Precision-wound 3″ 8-layer flat aluminum voice coil (bifilar) on a 0.3 mm anodized aluminum former Carbon fiber cone for rigidity and reduced flex Built to survive high power, long sessions, and real-world abuse Recommended Enclosure Ported: 3.25 – 4.0 cu ft Recommended Tuning: 30–32 Hz Optimized for deep, aggressive low-frequency output Physical Dimensions (Key Installation Specs) Mounting Cutout Diameter (Through Cut): 13.56 in (344.5 mm) Overall Cutout Diameter (Flush-Mount Recess): 15.39 in (391 mm) Mounting Depth: 13.50 in (342.9 mm) Motor Diameter: 9.45 in (240 mm) Net Weight: 101.41 lb Gross Weight: 109.35 lb View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: TCX Ohm: 2 Subwoofer Size: 15 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

Description Warranty Information Additional Information 0 Reviews Description The DOWN4SOUND TCX 18” Subwoofer D2 is built for extreme output, heavy power handling, and clean low-end delivery. Featuring a 3" 8-layer flat aluminum voice coil , carbon fiber cone , stitched high-roll surround , and an oversized 5-stack Y35 ferrite motor , this subwoofer is engineered to dominate both daily systems and demo builds. With a triple-spider suspension , fully vented motor structure , and extended pole piece , the TCX-18 D2 is optimized for long throw and sustained abuse. From punchy lows to extended sweeps, it delivers consistent pressure without breaking a sweat. Key Features 2700W RMS power handling Dual 2-ohm voice coil (D2) 3-inch 8-layer flat aluminum voice coil Carbon fiber cone ~39 mm one-way Xmax 5-stack Y35 heavy-duty motor Stitched high-roll surround Triple-spider suspension Dual flared pole vent, gap venting, and fully vented motor & backplate Technical Specifications (T/S Parameters) Resonance Frequency (Fs): 30.207 Hz Qms: 5.202 Qes: 0.598 Qts: 0.521 Mms (Moving Mass): 620.257 g Cms (Compliance): 39.745 μm/N Vas: 24.882 L Sd: 113.411 cm² BL Product: 27.216 T·m Sensitivity (SPL): 83.9 dB Xmax: ~39 mm (one-way) Driver Displacement: 0.31 cu ft Engineering and Construction Extended pole piece for smooth, clean long-throw travel Dual flared pole vent and gap venting for reduced turbulence Fully vented backplate and motor structure for thermal control Precision-wound 3″ 8-layer flat aluminum voice coil (bifilar) on a 0.3 mm anodized aluminum former Carbon fiber cone for rigidity, fast response, and reduced flex Built to survive high power, long sessions, and real-world abuse Recommended Enclosure Ported: 5.5 – 6.5 cu ft Recommended Tuning: 30 Hz Optimized for deep, high-output low-frequency performance Physical Dimensions (Key Installation Specs) Mounting Cutout Diameter (Through Cut): 16.54 in (420 mm) Overall Cutout Diameter (Flush-Mount Recess): 18.35 in (466 mm) Mounting Depth: 14.25 in (361.95 mm) Motor Diameter: 9.45 in (240 mm) Net Weight: 104.72 lb Gross Weight: 116 lb View All Close Warranty Information Warranty Information Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier. All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only. At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return! * Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt. Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/ Down4Sound - Hours of Operation Monday 6am - 9pm PDT Tuesday 6am - 9pm PDT Wednesday 6am - 9pm PDT Thursday 6am - 9pm PDT Friday 6am - 9pm PDT Saturday 8am - 4pm PDT Sunday Closed View All Close Additional Information Model: TCX Ohm: 1 Subwoofer Size: 18 Product Type: Subwoofer Subwoofer Type: DUAL VOICE COIL View All Close 0 Reviews View All Close

The Down4Sound DVX 18" SUBWOOFER - DVC | 1700W RMS is a high-performance subwoofer featuring a 4-inch cone. Rated at 1700W RMS. Thiele-Small parameters: Fs=28.036Hz, Qts=0.541. Maximum linear excursion (Xmax): 33mm. Designed for deep bass reproduction and high SPL output.

The Down4Sound SB 15" SUBWOOFER - DVC | 500W RMS is a high-performance subwoofer featuring a 4-inch cone. Rated at 500W RMS. Thiele-Small parameters: Fs=31.067Hz, Qts=0.771. Maximum linear excursion (Xmax): 21mm. Designed for deep bass reproduction and high SPL output.