Down4Sound Accessories

Description 2 Reviews Description 10" MDF RINGS 3/4 SOLD AS A PAIR RING ID- 9 1/4” RING OD- 11 1/8” FLUSH RING ID- 10 3/8” View All Close 2 Reviews 5 Great product Posted by Omar Rivera Rivera on Sep 27, 2021 Awesome product thanks 5 5star Posted by Shawn Stewart on Mar 20, 2019 Fast shipping solid product great team View All Close

Description 1 Review Description 3/4” mdf rings perfect for Crescendo Audio Ft1 tweeters and more! Available in standard or flush mount! Tweeter is not included with rings. You are buying a pair of rings only RING od 3 3/4” ring ID- 2 1/2” flush mount ID- 3 3/16” View All Close 1 Review 5 Great work Posted by Johnny Thompson, Jr. on Jan 22, 2019 I ordered these for my install. I was expecting a couple of days delay in shipping, but they were shipped the same day as the rest of my order, which was the day of my order. Would definitely recommend them. View All Close

Description 2 Reviews Description FLUSH MOUNT OPTION IS NO LONGER AVAILABLE 3/4” mdf rings perfect for Deaf bonce t-25 tweeters and more! Available in standard or flush mount! Tweeter is not included with rings. You are buying a pair of rings only RING od: 4.25” ring ID: 2.5” flush mount ID: 3 9/16” View All Close 2 Reviews 5 Very nice made fit like a glove very happy Posted by Martin Segura on Jul 18, 2023 Do recommend d4s friendly staff and fast shipping will buy again 5 Quality MDF Rings! Posted by Alfredo Meza on May 30, 2020 They are built with high quality and definitely recommend the flush rings View All Close

Description 5 Reviews Description 6 1/2 " MDF RINGS 3/4" THICK SOLD AS A PAIR standard 6.5” ring measurements ID- 5 5/8” OD- 7 3/16” flush ID- 6 5/8” oversize 6.5” ring measurements ID-5 7/8” OD- 7 3/8” FLUSH ID - 7” View All Close 5 Reviews 5 Great product ?? Posted by Edgar on Dec 24, 2025 Quality from Star to finish.... D4S for the win ? 5 6.5 mdf rings Posted by Nicky on Sep 11, 2023 I've gotten different sets from d4s and they all work perfectly if u have trouble gettin an oversized 6.5 say like the deaf bonce ap-m67an which has a bigger cut out these are the answer yo your problem or if your speaker has a fat magnet like the new hexicones there's different mounting options to accommodate what u need 5 MDF rings Posted by Jeremey Goodson on Mar 07, 2020 These are perfect ! Should have ordered 1 more pair though lol. 5 6.75 mdf rings Posted by Jeremey Goodson on Mar 05, 2020 I just got these today. Great quality. They look and feel great, just my dumb self ordered the wrong size! Thought my Arnold's were bigger lol. Reordered regular 6.5s and will be perfect! 5 Mdf rings Posted by Daniel on Jan 08, 2019 Perfect fit ! Excellent craftsmanship ! View All Close

Description 1 Review Description 8" MDF RINGS 3/4 SOLD AS A PAIR RING ID- 7 1/4” RING OD- 8 15/16” flush ID- 8 3/4” Flush Mount Option is No Longer Available, DISCONTINUED View All Close 1 Review 5 8" MDF RINGS Posted by Isaiah on Apr 21, 2018 Great product the quality and precision was spot on. View All Close

The Down4Sound CHG-15A - 12V Lithium Charger is a car audio accessory. Designed to enhance your audio system installation and performance.

The Down4Sound CHG-8A - 12V Lithium Charger is a car audio accessory. Designed to enhance your audio system installation and performance.

Description 3 Reviews Description Down4Sound Plug is a direct replacement part designed for seamless use with the below supported Minimax Mini Channel, JP77, and Ezy PWR 810. Built for reliable performance and easy installation, it ensures your system stays connected and running smoothly. Supported Amplifiers: View All Close 3 Reviews 5 This replacement rca for my d4s amp was perfect. Great quality. Posted by David Thurman on Mar 14, 2026 Thank you for the fast shipping. And great products. Will for sure buy again. Only wished I would of gotten a d4s sticker. Lol 5 works really well Posted by Alton Shultz on Jul 09, 2025 I bought a pair of these so i could replace my old ones and I have zero issues with them. Amazing quality 3 Mm1004 pigtails Posted by Jason Maxwell on Jun 10, 2025 One of the 2 that came with the amp started cutting out and then I figured it out the side that goes into the amp the pins inside were loose so I just ordered a new one it’s back and working good again View All Close

Description 20 Reviews Description Down4Sound's & Car Audio's 1st Ever Amplifier Tuning Tool with Built-In LED's! This aluminum installation tool is compact in design allows you carry the tuning device ANYWHERE without getting in the way PERFECT FOR on the spot adjustment for ALMOST ANY Amplifier, Crossover, and DSP. Two interchangeable fixtures with six different sizes for Phillips and Flatheads Insert Drivers. The D4S Amplifier Tuning Tool has a Bright LED Light allows the Installer to see what he or she is doing while tuning an Amplifier, Crossover, DSP, and MORE! *IF YOUR TOOL DOESN'T LIGHT UP UNSCREW THE TOP OFF OF IT AND MAKE SURE THE BATTERY PROTECTOR IS REMOVED TO ALLOW CONNECTION. View All Close 20 Reviews 5 D4s tool Posted by Chris howell on May 06, 2025 Love this thing. Easy to use. Good amp adjuster 4 Amplifier tuning tool Posted by Jeremy lee on Jul 28, 2024 It's a very handy tool when getting into tight spaces to tune amps. Would be nice if the light actually worked(yes I rem9ved to battery blocker). 5his light issue is the only thing stopping from rat8ng 5 Starz. Definitely recommend to my friends. 5 A.T.T. Posted by Worldwide Team Bass Cat on Apr 12, 2024 This is a great product. The craftsmanship is great the tips fit great in the amps crossover pods. And having the different tips is nice so I can use them on some of my other equipment. And even if my light does not work lol and yes I took the white plastic ring out of the way ? it is still a great product and been in Car Audio since 1988 never had a light tuning amps so I don't need one now ? 5 Handy tool Posted by Jeremy Nordgren on Jan 01, 2024 Handy tool with a light for adjustments 5 Tuning Tool Posted by Edward Dobson on Feb 17, 2023 Fast shipping will buy again 5 Great tool Posted by Jordan P on Mar 17, 2022 Bought this awhile back and it has been my go-to amp tool. Love the led light, very convenient! 5 Amplifier tuning tool Posted by Robert Welling on Jan 10, 2022 I'm writing another review about this tool because I had said in my previous review that the light on the tuning tool did not work. Afterwards, d4s called me and I told them that I tried everything to get it to work but had no luck. They sent me a new one and it works great. Thats what I'm talking about. Great customer service. I'm a loyal d4s customer and I recommend them to everyone. Thanks d4s, your the best 5 tunnig tool Posted by Alan ray on Feb 19, 2021 the best thing since sliced bread 5 Nice tool Posted by Vic Salazar on Dec 04, 2020 This is a very good tool to have buy it you'll like it .... 5 very handy tool Posted by Todd Self on Sep 11, 2020 this item is a handy and well constructed tool. made of durable aluminum instead of cheap plastic. the light is plenty bright and perfect for low light conditions. another great thing about this tool is that the batteries can be replaced. well worth the price. Next View All Close

Description 0 Reviews Description D4S Big Fat Fannie is the first 12V cooling fan specifically designed to cool car audio amplifiers. The low profile form factor and wide airflow cross-section allows for a flat channel of air to flow across amplifier heat sinks. Looking for a sleek 12V amplifier cooling fan and don't want a loud bilge pump sticking out like a sore thumb? Now you've got Fannie—the first 12V car audio amplifier cooling fan designed to look like it actually belongs in your install. Fannie offers simple positive and negative input power and can handle up to 18VDC. RGB and works with all amplifiers. Shop now & save on this limited edition D4S Fannie. Product Brand 12VDC Voltage Range 9~18VDC Dimensions 1.81" H, 22.88" L, 5.13" W Weight 2.04 lbs Product Manufacturer Sparked Innovations, LLC View All Close 0 Reviews View All Close

Description 58 Reviews Description After Extensive testing in my own vehicles for a while I am now proud to offer Down4sound digital volt meters! I have tried several others with poor results....and sadly a couple of them are very popular. That is the main reason why I wanted to test mine for a while before offering them for sale! Capable of working with all of your Car audio systems! 12v,14v,16v and 18v are no problem at all! AVAILABLE IN GREEN, BLUE OR RED. Dimensions: 1.89" x 1.14" x .84" (L*W* H) Cutting size: 1.79" x 1.02" mm (L*W) Minimum input: 3.50V DC Maximum input: 30.0V DC Measurement range: DC 3.50 - 30.0V Measurement accuracy: +/- (0.5% + 2 Digit) Display mode: Three 0.56 LED digital tube RED: REMOTE BLACK: GROUND View All Close 58 Reviews 5 Great product ?? Posted by Edgar on Nov 11, 2025 Awesome product 3 Volt meter(s) Posted by Darren on Sep 04, 2025 Ordered 2 green meters and got 2 different types the numbers are bigger on one than the other and 1 is faster responding..oh well they work ao thats what matters for now 3 Volt meter Posted by Mike Johnson on Nov 03, 2024 Easy to hook up and install was simple to do.. 5 Awesome product Posted by Freddy on Mar 19, 2024 Easy to install and works good 3 Voltmeter Posted by Jonathan yates on Nov 24, 2023 Color was listed as "galaxy purple" however its definitely white 4 Galaxy purple ain't purple but the rest are bright an accurate! Posted by Brandon metalleg basshead burns on Jun 20, 2023 Galaxy purple needs a serious revamp. It's white. I ain't color blind. I got a purple volt meter. This ain't no where close. But red an green look great. Very accurate an good refresh rate. 5 VM Posted by Gerardo on Apr 20, 2023 Best I've ever purchased. Bright display. 1 Overhyped cheap quality volt meter Posted by Cesar Menchaca on Mar 21, 2023 I purchased the galaxy purple color & was already disappointed. it’s a very light purple when I thought it would be a neon purple color along with all the other neon colors. I accidentally pulled on the wires & ripped them from the connections. I had a homie reattach them so it was eventually fixed. I have an Amazon volt meter that was cheaper than this one without the discount & has a better turn on & more of an accurate reading and overall higher quality. This D4S volt meter is just wayy to overhyped for quality that isn’t there. DISAPPOINTED 3 D4s volt meter Posted by William Burt on Mar 03, 2023 I like the size of the meter and how the lights present but the wires are way to small and the soldering is just hardly holding them on. Any light tug or movement of the meter just popped out the wire. Tried to fix it but just not worth the time for 6 bucks. Its cool in concept but just needs a little tweeking. Running the smd volt meter and i just love it so no going back now 5 Voltmeter Posted by Travis West on Jan 13, 2023 Meter is dead on when tested and easy to install very nice thanks d4s Next View All Close

Description Warranty Information 0 Reviews Description *ONLY COMPATIBLE WITH JP40 LITHIUM BATTERY* THE IMPORTANCE OF THE REMOTE DISPLAY: In demanding conditions of high amperage discharge, fast charging, and extended high amperage discharge, it is important to monitor the battery to keep the battery from being damaged. If the battery is discharged below the minimum voltage the battery will be damaged, and such damage will cause the battery to lose performance and/or cause a dangerous operating condition which could result in personal injury, equipment damage, or death. The same is true if the battery is allowed to over heat, or be over charged. This remote tool is a way to monitor the battery’s operation within the specified parameters without a putting restrictive Battery Management System (BMS) that reduces the amount of control the user has over the battery’s operation. As with all tools, it is only as effective as the user. If the warnings are not heeded, or ignored the battery may become damaged, and this will void the warranty. CONNECTION METHOD The remote monitor has 2 plugs, a Phone jack, and an 2 pin port. The phone jack is connected from the remote monitor and the plug labeled “remote” on the face of the battery. The 2 pin plug on the remote monitor can be used to connect the monitor to a 12V power supply, (Example: the cars ignition system.) as a alternate power supply to keep the remote monitor from using the battery’s power. INSTRUCTION FOR USE: Connect the battery with the remote monitor using the supplied cable. To Change Voltage/Capacity Display The default mode of the voltage/capacity display is the battery’s voltage. If the button marked “Voltage/Capacity” is pressed, the display will change to the show the battery’s capacity in percentage of remaining charge. If the button is pressed again, it will return to the default display. To Change The Temperature Display: The default mode of the temperature display is in Fahrenheit (Fo). If the button marked “Temperature” is pressed, the display will change to the unit of Celsius (Co). If the button is pressed again, it will return to the default display. REMOTE The JP40 Remote Display ships in the default setting that allows for plug and play use with the JP40 battery. Initial programming is not required when you purchase this remote for use with JP40. However, this remote is also designed to be used universally with AGM, Li-Po, LTO and other LFP type batteries in many configurations. Although the programming details shown below are accessible, they are only applicable to the universal remote model, which includes the voltage and temperature sending unit that can be used external to any battery. This will not allow for the accurate internal temperature readings you get from your JP40 Battery since the sending unit is already inside the battery. The programming instructions are provided below for knowledge about these functions in case the menu is accessed accidentally, and the settings need to be corrected for accurate functionality of the remote display. Press and hold the “Menu” button for six (6) seconds to access the program mode. The display will flash indicating it is in program mode. If no buttons are pressed within six (6) seconds the unit will automatically exit program mode. To set battery type, enter program mode. Use the Buttons marked with the up and down arrows to select the correct battery type. The battery types available to select are as follows: L - Lithium Ion Batteries (Li-ion, Li-po) [ Cell Voltage is 3.6V-3.8V ] F - Lithium Iron Phosphate Batteries (LFP) [ Cell Voltage is 3.2V ] P - Lead Acid Batteries (AGM) [ Battery Voltage is 12V ] t - Lithium Titanate Oxide Batteries (LTO) [ Cell Voltage 2.4V ] Once the battery type is selected, press the “Menu” button again to set the number of cells in series. The display will once again flash, Set the number of cells in series using the up and down arrows as before. EXAMPLE: 3S - is set to 03 4S - is set to 04 5S - is set to 05.... Etc. After six (6) seconds with no buttons pushed, the unit will exit program mode automatically. If the setting are not correct, re-enter program mode and select the correct settings. If the remote setting are incorrect, the information displayed by the remote will also be incorrect. 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 1 Review Description VERSION is V3 NOW !! D4S Fannie is the first 12V cooling fan specifically designed to cool car audio amplifiers. The low profile form factor and wide airflow cross-section allows for a flat channel of air to flow across amplifier heat sinks. Looking for a sleek 12V amplifier cooling fan and don't want a loud bilge pump sticking out like a sore thumb? Now you've got Fannie—the first 12V car audio amplifier cooling fan designed to look like it actually belongs in your install. Fannie offers simple positive and negative input power and can handle up to 18VDC. RGB and works with all amplifiers. Shop now & save on this limited edition D4S Fannie. Product Brand 12VDC Voltage Range 9~18VDC Dimensions 1.81" H, 11.44" L, 5.13" W Weight 2.04 lbs Product Manufacturer Sparked Innovations, LLC Current Draw @ 12.6VDC 1.92A Current Draw @ 14.4VDC 2.25A View All Close 1 Review 5 Best fan you can buy! Posted by Deanne Vredenburg on Aug 14, 2024 I'm so happy I came across this fan setup. It not only has more than enough cfm to keep your fans cool, it looks killer in my set up on my amp rack. I just wish I had waited for the sale. Even though I paid full price I believe it to be worth every penny! Love it, will buy more soon. View All Close

DOWN4SOUND - RECONE KIT | DBz-18D2 These are standard drop-in recone kits ONLY.

DOWN4SOUND - RECONE KIT | TCX-12D1 These are standard drop-in recone kits ONLY.

Description Warranty Information 132 Reviews Description D4S 12 Volt LITHIUM BATTERY DETAILS ( PLEASE READ THIS ENTIRE DESCRIPTION FROM START TO FINISH FOR BEST RESULTS WITH THIS BATTERY ) You’re looking at the first ever DOWN4SOUND lithium battery! We are super excited to bring the smallest, yet most powerful lithium battery to date, in car audio! Pairing a super small footprint with tons of output makes it a win-win! For all features and specifications on why the Down4Sound LTO-6.0 should be your ONLY CHOICE for your next lithium purchase, please read more about this GAME CHANGER below. Model - LTO-6.0 cells capable of 40C, rated for 20C daily use to maintain 12v+ Designed to work directly inline with stock charging voltages (No voltage-boosting needed to achieve optimal results). Can be paired with regular 12v / non-lithium batteries with no issues. 14.8v Maximum Charge voltage (DO NOT EXCEED THIS OR BATTERY DAMAGE / FAILURE COULD OCCUR). DO NOT MOUNT UNDER THE HOOD UNDER ANY CIRCUMSTANCES AS SEVERE DAMAGE / FAILURE COULD OCCUR. Wattage Range - 3000-5000W (Depends largely on alternator input). Example - 120-160A alternator - 3000w rating 240-270A alternator - 4000w rating 320-370A alternator - 5000w rating CRAZY RECHARGE RATE (can take a High-Output alternator by itself with NO ISSUES). 6 Ah 70 Wh Battery Technology - LTO (Lithium Titanate Oxide). *We feel this is the safest lithium technology. Built-in Balancing (No other parts or assembly needed). Comes with conventional M6 terminals for ease of installation. DO NOT OVER-TIGHTEN BATTERY TERMINALS! Whether using the automotive post adapters, bolts or screws, the tightening torque should never exceed 6 ft-lbs MAX on any Down4Sound battery! USE TERMINAL BLOCKS WHEN USING IN HIGH CURRENT APPLICATION When connecting to this battery a solid, low resistance connection is suggested. Because of the high output of this battery, excessive heat can develop on and around the terminals that can cause damage to the battery housing. Do not apply an excessive load if using steel posts or other high resistance materials to connect to this battery. 1/O gauge cable or larger is recommended for all connections Lightweight & compact design Weight - 4 pounds! YES, YOU READ THAT RIGHT! FOUR POUNDS! Measurements Width - 7” Height - 4.75” Depth - 3.5” PROPER CHARGING IS CRUCIAL! Charge before initial use, be sure to read the instruction sheet for full instructions proper charging is crucial to the life of your Down4Sound battery. It is very important that the temperature of the battery remains cool with respect to the charge voltag e. CHARGING Typically the battery will ship at less than 100% State of Charge (SOC.) Please charge your new battery immediately upon receipt. For charging your 12V Lithium battery we recommend a battery charger specifically designed for lithium batteries Lithium batteries are by their very nature voltage sensitive. Further, the lithium battery is the most vulnerable to damage while charging. It is important that the charging process of the battery be fully understood and carefully controlled. Do not use a battery charger designed for “Flooded” or “Maintenance Free” batteries. Do not use a battery charger with a “de-sulfa-tion mode” or “float mode” . USING THIS STYLE OF CHARGER WILL CAUSE DAMAGE / FAILURE AND VOID WARRANTY. Remove the battery charger once the battery is full meaning 100% State of Charge. Unlike lead acid batteries, over charging lithium batteries does not help them nor cause them to store more power. Instead it harms them and should be strictly avoided. Lithium cells are in a state of stress when at 100% SoC and beyond. Continuous charging must be avoided. Lithium batteries do not have a “memory effect” therefore they do not have to be empty to benefit from re-charging. Simply recharge them when convenient and avoid overcharging. In general,float charging or battery maintain-ing should be avoided. Can be charged at a rate of 60A continuous, 400A 10 sec If you want to charge this battery with a battery charger, it MUST BE A LITHIUM BATTERY CHARGER such as https://www.down4soundshop.com/down4sound-d4s-chg-15a-12v-lithium-charger/ (Using a regular battery charger can damage the battery / void the warranty). STATE OF CHARGE 100% - 13.6V 96% - 13.2V 77% - 12.8V 54% - 12.4V 25% - 12V 10% - 11.6V 8% - 11.2V 5% - 10.8V 1% - 10.4V 0% - 10V Warranty: 1 year from date of purchase against manufacture defects. TIPS LIST Read the battery label and do not exceed any of the ratings. Do not over discharge this battery. Terminal voltage should at all times remain above 10V. Disconnect when not in use. Make sure you have the correct charger. Lithium batteries are voltage sensitive so pay close attention to the max voltage rating. Do not use an undersized battery for the job esp. in applications under 32 F. If the terminal voltage under load drops below 10V the battery is too small for the job. Stop and resolve this issue before continuing. Pulse loads by their very nature are a pseudo short circuit of the battery. This is fundamentally destructive to the battery so each battery’s State of Health should be regularly checked. INSTALLATION You may mount the lithium battery in any direction as long as it is secured from short circuits and/or movement. One word of caution though. This battery is very light and therefore it does not require a great deal of force to hold it. Do not crush the battery with battery retention systems. The threads are M6-1.0. Optional mounting kits and terminals are available. Observe the maximum torque ratings on the battery label Be extremely careful when making connections . Remember there is no low voltage disconnect, reverse polarity, or short circuit protection on the main terminals of this battery. Further the power output of a lithium battery is four times that of typical lead acid batteries. Short circuits will flow huge amounts of current instantly with the ability to melt metal.Do not expose to temperatures above 60oC (140oF). Avoid mounting this battery in the engine compartment if at all possible. Elevated temperatures accelerate the aging process of most battery types and lithium batteries are especially sensitive to high temperatures. Open circuit voltage should be above 12V, when fully charged after resting for 8 hours. If it is less than this after resting for 8 hours, the battery should be taken out of service and must be checked for capacity, cell balance, and State of Health before resuming operation. USAGE In general the lithium battery will outperform the lead acid battery it is replacing. If it does not, chances are you have a battery that is too small for the job. Stop now, take it out and return it for the correctly sized model. In general pulling the battery’s terminal voltage below 10V for even the shortest amount of time is asking for a premature failure. This must be avoided. Lithium batteries have a relatively flat discharge curve when compared to a lead acid battery. The good news is that the average terminal voltage throughout discharge will be 12.5V for 12V models. Unfortunately this can make judging the state of charge difficult when the battery is near empty. Lithium batteries at a low state of charge will still show a relatively high voltage. It is important to get to know the limits of your battery because over discharge below 10V must be strictly avoided. WARNINGS To reduce the risk of fire or personal injury including burns: - Do not over charge the battery (meaning exceed the maximum voltage OR amperage and remove the charger once the battery is at 100% SOC.). - Do not short circuit the terminals. - Use with alternators requires that the charging voltage be limited to 14.4V or less. 13.8~14.0 is preferred for 12V models. - Do not charge this battery if the terminal voltage is below 10V. - Contact Down4Sound for assistance before proceeding. - Avoid high temperature. Never operate the battery in environments above 130oF or if the battery itself exceeds 130oF at any point. - Lithium batteries contain flammable gases. Have a plan in place to respond to possible fire. Installation inside of metal enclosures is recommended in the event of fire. - Disconnect the battery in total before welding anywhere on the vehicle. Do not submerse in water. This battery is not waterproof. - Do not crush, puncture, or dispose in fire or water. - Do not attempt to open, disassemble, or service the battery pack TESTING LTO 6.0 Standalone Testing Notes: SPL TESTING SECTION. BURPS. STANDALONE. (Wattage verified with termlab) 1,000W. 12.93 to 12.85. Immediate recovery. 2,000W. 12.93 to 12.4. 5,000W. 12.93 to 12.05. 8,000w. 12.91 to 11.12. 8,300w. 14.1 to 11.4. After the 8,300w burp, battery recovered to 12.8. A 25a lithium charger was applied. 1m 4s later, battery was floating at 14.5. Battery stud temp raised 4*, and casing raised 2-3*. ****ENGINE TURNOVER TESTING SECTION*** 4 CYLINDER TURBO TEST *first crank* 12.8 to 11.96. Next test: Vehicle accessory mode for 5 minutes, then start: 5 minutes with head lights on. Engine still started fine. Dropped to 10.9. Quickly back up on a stock charge system. Next test: Brutal engine cranking (simulating super cold temps where engine needs numerous cranks to start). 3 engine cranks in a row. 5 seconds on then turn the engine off. 5 seconds later, start again. Starting at 12.9. Dropped to 11.4 on the last of 3 starts. Same test with an AGM (D5100) Dropped to 10.9. NO STUD OR BATTERY TEMP DIFFERENCE DURING THIS TEST WAS OBSERVED. ————————————————————— 6 CYLINDER TEST 12.9 to 11.77. Battery was above 14v with stock charging in 20 seconds. No lag noticed or difficulty starting. 3 start roulette placed battery in upper 10’s. Same test as performed above. NO STUD OR BATTERY TEMP DIFFERENCE DURING THIS TEST WAS OBSERVED. ————————————————————— 8 CYLINDER TEST (V8 mustang. Naturally aspirated) 12.9 to 11.4. Battery was above 14v with stock charging in 45 seconds. No lag noticed or difficulty starting. 3 start roulette battery seen 10.9 at the last run. NO STUD OR BATTERY TEMP DIFFERENCE DURING THIS TEST WAS OBSERVED. ————————————————————— DIESEL ENGINE (POWERSTROKE) 12.9 to 10.9 . Battery was above 14v with stock charging in 1 minute. No lag noticed or difficulty starting. Ignition problems in vehicle prevented 3 start roulette. NO STUD OR BATTERY TEMP DIFFERENCE DURING THIS TEST WAS OBSERVED. ————————————————————— 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 132 Reviews 5 The best especially with it being lightweight Posted by Charles Logan on Feb 07, 2026 I gain more speed now due to the trunk having less weight. I had a big group size agm battery with a heavy speaker and box. But that agm weigh the most 3 D4s 6.0 Posted by Alex Vargas on Feb 04, 2026 Massive voltage drop. I was told 2 of these would be fine for my sfb 8k and 4-12s I have a autotek 370 alt xs power 3400 under the hood Big 3 upgrade 2/0 wire ran to the back and the rest is 1/0 wire for ground and power to the lithiums/ d- bars etc and I’m getting worse voltage drop than before I had the lithiums. My grounds are good on a 3/8 bolt straight to the chassis Double 1/0 runs from the sfb on the power and ground side. I’m guessing I need to get a 3rd battery now. Waiting to hear back from down4sound 5 D4s LTO 6.0 lithium battery Posted by Joe Campos on Jan 17, 2026 Well I kinda doubted this battery but I looked at the reviews and everyone raved about it. So I got mine because they say it's powerful it's small and thats exactly what I need my amp kept shutting down because I suspected not enough power so I gave this a shot and all I can say is it lives up to the hype already bought one more planning on get 3 cause I should only be at 10-12k watts total rite now one 3k smart amp and it handles that well gonna add another 3k and 2 battery's wish me luck. 5 LTO 6.0 Posted by Clint Chambers on Jan 05, 2026 I got this little battery to help with my 2 XS Power d3400 along with my Mechman 400 amp alt. because added a bigger amp (JP33 to be exact)!! It works as it should and the tech support was great in suggesting this to me. Very happy with my purchase!!! A+++++++ 4 Don't know yet Posted by Willie Davis on Nov 20, 2025 After buying 4 of them I would have thought I will get a free battery charger but I am putting them in this weekend and I will get back with you all 4 Don't know yet Posted by Willie Davis on Nov 20, 2025 After buying 4 of them I would have thought I will get a free battery charger but I am putting them in this weekend and I will get back with you all 5 D4S LTO 6.0 Posted by Kelton on Apr 17, 2025 Great batteries. I have 2 strapped on a taramps bass 8k. 370 amp alt. I think i need a couple more! 5 Lithium Batteries Posted by Clyde Fields on Apr 16, 2025 They are holding the power very well and I'm glad I went thise lithium batteries. 5 Excellent Product!!! Posted by Andres G Restrepo on Mar 25, 2025 Works perfectly, before I had voltage issues on my Audi Q5 with Helix PSix, PTwo and POne. My system was dropping below 11 Volts when pushed. Now it doesn't go below 12.9 volts. Big difference for such a small battery. Very pleased. 5 Thank you Posted by Roy Dominguez on Mar 21, 2025 I love it Next View All Close

Description Warranty Information 1 Review Description A single JP-2HC supports up to a 2,000 watt system in conjunction with your stock electrical, and delivers 400% more capacity than a 3,000 farad super-capacitor bank(6s), and in a smaller space. LIC Capacitor bank High-Speed Charge/Recharge 1,000W-2,000W amplifier support Designed and Manufactured in the USA Accepts up to 4 AWG Power Terminal Replaces Batteries 30-40 lbs Heavier Typically Outputs Over 13.5v During Operation Lasts Two to Three Times as Long as Typical Lithium Battery (30,000-50,000 cycles) Wide Operating Voltage Range From 8-16v 2 year Manufacturer Defect Warranty Factory Battery Saver Lasting up to a decade and weighing in at 1.3lbs, the D4S-JP-2HC gives your audio system the power it needs, so your factory battery can do what it’s best at: powering your vehicle. 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 JP-2HC Posted by Brian on Mar 10, 2024 Well worth the money! I'm running a JP95 and before adding the 2HC I would see voltage drops into the high 11's when really pushing the amp hard. Now I see upper 12's at worse. I found some 1/0 ring terminals that fit perfectly to the 1/4 bolts. Would not hesitate to recommend. View All Close

Description Warranty Information 7 Reviews Description Single Channel Grade 8 Heavy Duty Down4sound Terminal Cup. (Square) 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 box terminal Posted by jason on Apr 02, 2025 Excellent terminal. Bought one cause flat pack said it didn't come with one but it did so I have extra. 5 Terminal cup review Posted by Jason hernandez on Dec 25, 2024 They worked perfect for my box! 5 Terminal Posted by Rod Mosier on Nov 10, 2024 Simply put!! Well built, amazing cheap price! They hold up well with all the vibrations too lol 5 Sub box terminal plate Posted by Tom Jordan on Nov 08, 2023 Built real good and don’t ask crazy price and got it very quick 5 Terminals Posted by James on Nov 07, 2023 Worked out perfectly 5 Great quality Posted by Terminal cup on May 31, 2023 Awesome product and way cheaper than the SMD terminals 5 Quality terminals Posted by Darrin on Nov 28, 2022 I ordered these but received the SMD ones. Either way I am happy View All Close

Description 3 Reviews Description DOWN4SOUND BASS KNOBS- FITS MOST AMPLIFIER BASS KNOBS CURRENTLY AVAILABLE IN BLACK, RED, AND BLUE View All Close 3 Reviews 4 Bass knob Posted by francisco erickson on Apr 12, 2020 I picked up the green one looks fantastic , only down fall is it broke my bass knob on my skv2 when I installed it , was super tight fit . Be carful when installing. 5 Bass knob Posted by Darren on May 28, 2019 Look great, fits perfect, fast delivery. Recommend 100 percent! 5 Bass knob Posted by Tony on May 03, 2019 Fits perfectly for my Skar rp2000 bass knob would definitely recommend this. They look good as well! View All Close

Description Videos Warranty Information 19 Reviews Description DOWN4SOUND D4S SUPER CAPACITOR BANK 500: 12V Super Capacitor Bank, Max Power 4,000W, 500 Farad Cap bank is shipped NOT CHARGED. You will have to charge it to add it to your system. Don't know how? No problem! Watch this video Operating Voltage: 12.0V - 16.2V Operating Temperature: -40 - 150 Capacitance: 500F Watt Hours: 18.2Wh Max Amps: 10,000A Works with AGM & Lithium Batteries. includes terminals and screws ( see images) 7" LENGTH x 5" WIDTH x 6" HEIGHT View All Close Videos What are CAPACITORS? ⚡️XS power SuperCELL / SUPER CAPS / CAPACITORS EXPLAINED⚡️ This video is going to cover the XS power Supercell / SuperBAN... XS Power Superbank First Charge! This video was made to show you the safest way to initially ch... 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 19 Reviews 5 Supercap 500 Farads Posted by Martinus Juan Hinton on Dec 08, 2023 No more headlights dimming. No more 1 volt plus voltage drop. Will stay in the 14’s. I want another asap. 5 500 farad cap Posted by Bigg Marty on Dec 03, 2023 No more headlights dimming. Stock alt 150 amp. Kicker amp cxa800.1 on two wdx 2 12 inch subs. 5 It good Posted by Maio on Aug 23, 2023 I like the down for sound experience 3 Great super cap bank but.. Posted by Lowprofile on May 28, 2023 This super cap bank is awesome & added a huge amount of improvement to my system. I have a 400 amp Js alternator paired with a D3400 under the hood & a secondary D6500 paired with super cap bank. For paying $350 I really think y’all could’ve done a better job by adding more attachments like different style lugs along with a charging light like XS POWER… but the most important thing is a better way to hold the caps together instead of zip ties, just looks ghetto asf and half assed if you ask me. I know im not the only one who thinks this..but other than that I was limited on space so it worked out. Just wish there was more thought out ya feel me??⭐️⭐️⭐️ 5 Beyond expectations Posted by Jason on Apr 01, 2023 Perfect addition to any system 5 Good Posted by Jeffrey Sprasky on Feb 07, 2023 Also bought the d4s 8 amp charger, which was perfect for my standards, these have to be slow charged so I also used a 2.7 volt bulb, it took around 20 hours to fully charge, but I was in no rush and wanted a very slow charge anyway, and it does what it is supposed to do, no more dimming lights, my voltage never reaches below 12.2 I also have the lithium 6.0, and 0 gauge ofc big 3 and ofc 0 gauge front to back with a 200amp alt. No issues 5 D4S 500 farad supercap Posted by Brandon on Jan 20, 2023 Awesome product. Works great and really impressed on how much it helps with voltage droppage. Only downside is I wish d4s would ship a light bulb resistor with it but other than that it's great. 5 D4S 500Farad ultracapacitor bank. Posted by Skilled1 on Dec 13, 2022 These are one of the most inexpensive ways to purchase a set of 6 XS power Ultracapacitor banks. They're already bussed and packed in a small footprint. Simply charge them with a 12v light bulb and lithium pulse charger. The light goes out and you are fully charged and ready to install. I have a Salt 8 with an Titan 8 and 500Farad cap bank for each of the 3 positive power inputs. Even an ECU controlled 21 Frontier can hold 12.8v and charge @13.5 . They can be ran up too 16v for those interested in changing their charging voltage. Best investment you can get is a solid electrical system. Your amps are only as good as the power you can supply them. 3 Super cap Posted by Douglas hillman on Apr 09, 2022 I think it would’ve been real nice when the customer pays $350 if you could add the bolts that go on the top so the customer can hook it up instead of having to go to Home Depot and spend more money to buy bolts. 4 terminal and charging light not included Posted by Jamie Gray on Feb 12, 2022 Works good but not terminals or charging light. Next View All Close

Description Warranty Information 1 Review Description The Down4Sound D4S AX5S 5 Way Digital Crossover is designed for car audio enthusiasts and professional installers who want precise system control without the complexity of software based DSP processors. Instead of relying on apps, laptops, or layered menus, the AX5S delivers direct digital crossover control through hands on, real time adjustment knobs. This approach allows you to tune your system instantly while listening, making it easier to dial in crossover points, balance output levels, and refine bass response without interrupting the listening experience. Complete System Frequency Control The AX5S provides dedicated subwoofer, front, and rear outputs , giving you full frequency management across your entire audio system. Each output section features independent level controls and adjustable filtering so every speaker receives only the frequencies it is designed to play. High pass, low pass, and band pass filters allow accurate crossover tuning for multi amplifier systems. A built in subsonic filter protects subwoofers from damaging ultra low frequencies, while bass boost and phase control help fine tune low end impact and integration. A wired remote bass level control is included, allowing convenient subwoofer adjustment directly from the driver’s seat. Designed for Clean Signal and Long Term Reliability The AX5S is built with sound quality and durability in mind. High quality Tiffany style RCA inputs ensure a secure, low noise connection, while gold plated terminals maintain strong signal transfer over time. Internal fuse protection and a compact, rugged chassis make the AX5S suitable for daily driven vehicles, competition builds, and professional installations. With a strong 9 volt RMS output and low total harmonic distortion, the AX5S delivers clean, consistent signal to your amplifiers. Ideal Use Cases The D4S AX5S is ideal for active car audio systems, multi amplifier setups, bass focused builds, and SQL systems that require precise crossover control without digital complexity. It is especially well suited for installers and enthusiasts who prefer physical tuning controls and immediate feedback. Key Features Five way digital active crossover Independent level controls for subwoofer, front, and rear outputs High pass, low pass, and band pass filtering Built in subsonic filter for subwoofer protection Bass boost control from 0 to 12 dB Selectable subwoofer phase control at 0 or 180 degrees Wired remote bass level control included Strong 9 volt RMS output High quality Tiffany RCA inputs Gold plated terminals Fuse protected design Compact chassis for easy installation Technical Specifications Crossover type: 5 way digital active Frequency response: 10 Hz to 50 kHz Output voltage: 9 V RMS Signal to noise ratio: 93 dB Channel separation: 60 dB Total harmonic distortion: less than 0.01 percent Input and output connections: RCA Remote output: 12 V Fuse rating: 3 amps Dimensions: 190 × 140 × 38 mm Dimensions in inches: approximately 7.48 × 5.51 × 1.50 inches Why Choose the AX5S The AX5S delivers digital crossover performance with the simplicity of physical controls. It allows fast, accurate tuning without software, provides complete control over subwoofer, front, and rear outputs, and is built with the reliability and signal quality expected in serious car audio systems. 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 crossover Posted by daniel orosco on Dec 11, 2025 works great really made a difference View All Close

Description 0 Reviews Description Sundown Show Fast Pass, Includes FREE Shirt and Shout outs on Social Media. View All Close 0 Reviews View All Close

Description Warranty Information 3 Reviews Description The Down4sound EZ SNI-35 2V is a 2 channel lineout converter, this 2ch lineout is a handy device to have in your car when integrating aftermarket Bass into the factory system. The EZ sni-35 lineout converter takes the speaker level signal from the car's head unit or amplifier, and through its specially designed circuitry, it converts it easily into a low voltage, line-level signal that is compatible with all aftermarket amp outputs. This allows you to quickly, and most importantly safely, install amps and speakers without having to cut into or splice complicated factory wiring. With our 2 channel lineout converter , you'll get a clean and flawless integration of aftermarket audio components into your vehicle so you can crank up some tunes with peace of mind. EZ installation for a 2 CH line out integration Perfect for adding bass to almost any ride with a OEM Radio 2CH Smart line-output converter 2CH high level input 2CH RCA output Surface mount component technology Lowest impedance and best power filter FR4 double sides PC board Remote trigger output with signal sensing Power LED indicator to show working status 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 Really good product easy to connect and no noise out of it Posted by Junior on Sep 21, 2024 This output converter is nice not too expensive works great easy to connect not complicated and it's not real big tried four other outputs and my opinion this one's by far one of the best ones 5 Loc Posted by Trisstan Shoemaker on Mar 09, 2023 Amazing line out converter very easy to install as well highly recommend. 5 DOWN4SOUND EZ-SNI35-2V Posted by Glenn macpherson on Jan 31, 2023 Great line converter. Easy to use View All Close

Description Warranty Information 12 Reviews Description Upgrade your car's audio system with the HiLo 5 5-Channel Lineout Converter . This aftermarket kit is designed to easily integrate factory wiring into your car audio system, providing a 5-channel HI to LOW Signal Conversion that ensures compatibility with all aftermarket amplifiers. With integrated clip detection functionality for optimal amplifier performance, you won't have to worry about complicated installation or hunting for the right conversion pieces - our 5-channel line out converter has everything you need for seamless integration of your sound system. Upgrade today - and enjoy better sound tomorrow! 4 CH High Level Input / 5 CH RCA Output Surface Mount Component Technology Direct Insert Power / Speaker Terminal Lowest Impedance and Best Power Filter FR4 Double Sides PCB Remote Trigger Output with Signal Sensing Power / Clipping LED Indicators 5 channel line out converter specifications: Working Voltage: 12V+ Input sensitivity : 0.1 - 16v Frequency response: 10Hz - 30KHz Input Impedance: 20K Ohms Standby Current: 200 Ma Size: 4.29 inch (L) x 3.46 Inch (W) 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 Awesome for factory units Posted by Myke on Oct 15, 2025 Had a buddy install this. Simple and easy to him. Works great on my factory headunit 5 Great buy Posted by Brian on Oct 05, 2025 Great HILOC for the $. Would buy again, and recommend to others. 5 INTELLIGENT CAR AUDIO 5CH LINE OUT WITH CLIP DETECTION Posted by Laura Gonzalez on Aug 18, 2025 Excellent product and the fact that’s affordable makes it even better. 5 Hi Lo converter Posted by Sal on Mar 06, 2025 It’s been 4 weeks that I placed my order and still have not received this item 5 This was the easiest part! Posted by Taylor Tucker on Oct 30, 2024 This made my install so much easier! It works great and I had no issues whatsoever. Plent of voltage and zero hiss or whine. Clip lights are a big plus! 5 Highly recommend Posted by Andre Brown on Oct 15, 2024 Highly recommended especially if you have a Dodge Charger that have all the settings in the factory radio, I bought the Pac AP4-CH41 and it didn't work as well as the D4S HiLoc 5 and it's price was way cheaper than the $300 Pac unit 5 Works great Posted by Geo on Apr 01, 2024 Best bang for your buck. Tried out so many diffent loc's this one is by far my favorite. Clean sounding super simple to use/ set up, and a great price. If your thinking about getting one just do it you wont regret it. 5 Converter Posted by Kyle Eshbaugh on Jan 06, 2024 The best converter for the money I have ever used!!!! 5 Great LOC Posted by Steve Bortnick on Dec 31, 2023 This LOC is so easy to install and setup. The input clip detect feature works flawlessly. Clean in, clean out. I replaced an LC7i with this unit. It’s a fraction of the price, easier to use and better sound quality. Thanks D4S for another great, affordable, high quality product!! 5 Nice Lineout Converter Posted by Jerry Wade on May 28, 2023 I purchase this converter to replace the old one I had for 10 years going from car to car. The old one was only has one set of outputs so this was a need upgrade to hookup multiple amps in the future. All I can say is this converter really clean up the sounds for my highs and also eliminated the wine noise I had before. The 4v is perfect for me because my sub amp max volts is 5v. I you need to keep your factory stereo as I had to, this is definite a good option to add amps and get a clean sound. Next View All Close

Description Warranty Information 1 Review Description The Down4Sound HiLoc7i 7-Channel Line Output Converter is the easiest way to add aftermarket amplifiers and subwoofers to your factory stereo. Engineered for clean integration, the HiLoc7i accepts your OEM high-level (speaker) signals and delivers strong 9V RMS RCA outputs , ensuring your amps get the signal they need for full performance. With 6 speaker-level inputs + 1 RCA input and 7 RCA outputs , the HiLoc7i gives you the flexibility to expand into multi-amp and subwoofer setups. Built-in OEM signal sensing provides automatic turn-on, while clipping indicators on each channel make tuning safer and easier. This converter is built for clean sound with THD <0.01% distortion , a 100dB signal-to-noise ratio , and a wide 10Hz–50kHz frequency response — meaning every detail of your music passes through. Compact, installer-friendly, and powerful, the HiLoc7i is the perfect solution for upgrading your factory sound system without replacing your head unit. If you’ve been asking “How do I add an amp to a factory radio?” — this is the answer. Key Features 7 RCA Output Channels 6 High-Level (Speaker) Inputs + 1 Low-Level RCA Input High-to-Low Level Signal Converter Built-in OEM Signal Sensing (Automatic Turn-On) Clipping Indicators on Each Channel Strong 9V RMS Output Signal Wide Frequency Response: 10Hz – 50kHz Low Distortion: THD <0.01% High Signal-to-Noise Ratio: ≥100dB Input Impedance: 20Ω Remote 12V Output (signal sensing) Fuse Rating: 3A Compact Size: 7.09 × 5.9 × 1.5 in (180 × 150 × 38 mm) 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 HiLoc7i Posted by Kevin on Oct 04, 2025 I recently purchased this item. Great deal.Definitely does it job. Running JP95t with 2-SB 10's. D4S mids and tweeters. View All Close

Description Warranty Information 38 Reviews Description Down4Sound's Universal Car Audio Bass Knob is now available in VERSION 2! We have upgraded the whole manufacturing process this time to being injection molded & we incorporated a volt meter as well! The finish is super smooth and soft to the touch. Volt meter hook up: Red Wire- Constant 12v power Black Wire - Ground Orange Wire - Remote in, From Source Unit Remote Output Blue Wire - Remote Out, Goes to Amp Remote Input LED COLOR LIGHT - BLUE Still made with the best internal parts and Rca's on the market. The Rotating Subwoofer is made from very strong plastic. This is one of, if not the best universal bass knob / remote with RCA's on the market. It will work with any amplifier that requires RCA inputs. 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 38 Reviews 5 Very nice bass knob for the money. Posted by Justin valerio on Mar 25, 2026 Very nice bass knob and works 10 times better then Amp bass knob. Voltage display screen clear and voltage it says is on the money tested it with voltage meter. Would buy again for other builds. Shipping on time nice sticker to show off only the best products from down 4 sound. Very nice customer service that gives you updates on the products you buy from them. Just got 2 SB 10s 4ohms love them nice strong hard bass that can beat for a long time. 5 Loved it!!!! Posted by Kevin Lewis on Mar 07, 2025 This thing is so cool and works perfectly it's gets louder when u turn it up and can even turn it all the way off exactly what I wanted and was hoping for Thank u all very much 5 Great product Posted by Raul Reyes on Feb 10, 2025 Love the product and functionality 5 Look good Posted by Eusebio Garza on Dec 24, 2024 I haven't had the time to hook it up but overall looks great 4 Bass knob Posted by Patrick Forrestier on Dec 21, 2024 Works perfect,just wish it was a lil smaller in size 5 D4S Bass Knob Posted by Rod Mosier on Nov 10, 2024 Always fast shipping, product description, great products! Love this Bass Knob, works great and love the looks! Well made!! Thanks JP for some killer products!! 5 DOWN4SOUND SUBWOOFER BASS KNOB V2 W/ VOLTAGE READOUT Posted by Albert Lujan on Sep 13, 2024 The bass knob is great. The only thing that could be better is if the knob is to loose. 5 Awesome bass knob, unique Posted by Brandon Arrowood on Apr 24, 2024 I got the bass knob for what I consider a great deal at $28. It definitely does what it is supposed to do and very easy to hook up. Voltage readout is spot on. The only thing that I wish was different is I wish the actual knob itself could be tighter. What I mean is the knob turns so easily that it will mive on its own if you set it down or in your lap. But it rolls in smooth and does great. Great for demos but I don't use it in my daily because of the knob being so sensitive to movement. But I live it for the price I have no complaints. Thank you JP and d4s team 5 Best bass knob Posted by Austin Holloway on Apr 24, 2024 Hands down one of the best bass knobs I have ever used or had and I’ve a lot of them. Love the feel of it and how smooth it is. The volt meter is very bright and easy to see will be buying another one before slamolgy for my other car 5 Bass knob Posted by Dustin on Apr 23, 2024 Very cool looking bass knob. Seams to be well built. Very happy with it. Next View All Close

Description 0 Reviews Description FT1 MDF Tweeter Ring Recessed (FLUSHED), sits within MDF Ring View All Close 0 Reviews View All Close

Description 10 Reviews Description V2 aluminum Bassknob wired bass knob for JP amplifiers WORKS ONLY WITH DOWN4SOUND JP AMPLIFIERS Backwards compatible with older JP amplifiers with a wired bass knob View All Close 10 Reviews 5 Bass knob Posted by Rudy on Sep 29, 2025 Lost my other bass knob is a car collision was unable to get it . This purple bass knob is exactly what I was expecting it’s great! Working 100 percent. Gives that thump! When needed 5 That D4S difference Posted by T. I Padgett on Sep 11, 2024 Was already repping D4S for years now has an issue where bass knob quit working wasn't sure if it was knob or cable ordered new knob with cable late Wednesday evening here in Florida was stoked to see expected delivery Monday Vegas to Florida when tracking updates now expected delivery Friday and it was. What can I say but wow awesome customer service thanks guys 5 Bass knob Posted by Tyrone Gattison on Apr 23, 2024 Only thing I didn't like was the extra 10 dollar charge for shipping when I didn't get the item on time got it 7 days late 5 Amazing Posted by Andrew Stephens on Feb 12, 2024 The only thing that could make it better is if it could turn on and off the amp. 5 Great bass knob Posted by Jordan Cheek on Feb 06, 2024 Works beautifully, the voltage and temp numbers recover very quickly and the knob itself is very smooth and stiff which allows it to shut the bass completely off with no wiggle room on the knob. Personally would make the mounting bracket removable so it’s comfortable to hold. 5 JP V.2 bass knob Posted by Jeremy R. on Jan 16, 2024 looks just like the amp and has all the features that you would want, also works great! 5 Aluminum Bass Knob Posted by Jtrevino805 on Aug 26, 2023 Excellent build quality. Heavy duty. Love the clip indicator. The brightness on the LED is perfect based on the previous model. 5 Jp63 bass knob Posted by Christopher Castiglia on Jun 27, 2023 Just a suggestion. But i think if the metal jp bassknobs matched whatever color the jp amp is.it would be insane.!!Love the teal color of the 63. 5 Jp63 Posted by Christopher Castiglia on Jun 09, 2023 Lovin my jp63 amp its amazing.!!Only complaint is the beautiful metal bass knob stopped turning on after only 2 weeks of use.Never dropped or tampered with at all.Overall this is an incredible amplifier and im so happy with it.Just really want another bassknob just dont want to put money into it when i just bought this amp like 2 weeks ago.lol 5 JP2 bass knob Posted by Mike on Apr 06, 2023 I have to admit, I haven’t used it yet but the quality is way better than the old one. Thanks guys! View All Close

The Down4Sound JP-CHG-20-BK | Black | Lithium Charger is a car audio accessory. Designed to enhance your audio system installation and performance.

Description 3 Reviews Description **THIS IS NOT A UNIVERSAL BASSKNOB ONLY COMPATIBLE W/ JP33/43/63/83 AMPS** Bass Knob with voltage and temperature meter and clip Indicator. View All Close 3 Reviews 5 Jp33 Bass Knob Posted by Wai on May 06, 2025 Great bk, great customer service as well, old bass knob broke and was scared i couldn't get it in the same titanium color i had, i asked if i could get it in that color instead of black and i did. 5 Bluetooth bass knob Posted by Anthony Pearce on Jun 08, 2024 Hands down! Absolutely! Love my Bluetooth bass knob. Super convenient. Don'need to run a remote wire to it. That USB is awesome for the power the clipping indicator is great to have on a base knob if there was a downside to this bass knob, the color did not match the amplifier. My is that awesome green ? #JP83 1 Jp33 Posted by Randy Brown on Apr 29, 2024 Love the amp but the bass knob won't connect to the amp, it's my second I've purchased but 3rd total, the replacement won't work the d4s shop wants me to return amp for a software update so it will pair with replacement bass knob.. View All Close

Description 1 Review Description ONLY COMPATIBLE WITH: JP3CPT, JP8, JP1.2z3, JP2.2z3 (Coming Soon), JP13, JP23v1.5, JP23v2, JP32.2, JP77, JP454, JP10.4 EZY-PWR-810, EZY-PWR-77(coming soon) MM1000KFD, MM1500KFD, MM3000KFD, MM1005KFD. View All Close 1 Review 5 Great Posted by Jimmy Barrett on Oct 07, 2024 Works great View All Close

Description Warranty Information 0 Reviews Description Samsung Note 20 ULtra Phone Case Rubber with Birch Wood insert Protects against scratches Standout at the show with the team D4S official Case 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 Samsung S20 Phone Case Rubber with Birch Wood insert Protects against scratches Standout at the show with the team D4S official Case 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 Samsung S20 Phone Case Rubber with Birch Wood insert Protects against scratches Standout at the show with the team D4S official Case 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