Down4Sound Down4sound PRO-FAB Birch FLAT PACK 1 15 | 1 15 Sub Box | DIY Single 15-Inch Ported Subwoofer Enclosure Box

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