Dual 15" Custom Kerf Ported Subwoofer Box (HAND MADE IN THE USA)

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.

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!

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.

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.

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%

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!

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.