PRESS RELEASE: Due to the unprecedented amount of orders Down4sound has received over the past few weeks, we have encountered some unforeseen delays as a result of depleted stock. Please be assured that the entire Down4sound team is working tirelessly to get every order processed and shipped as fast as possible. We value every single one of our customers and greatly appreciate your patience and understanding of the situation we are facing. Thank you all and be blessed.

Single 12" Custom Kerf Ported Subwoofer Box (HAND MADE IN THE USA)

Price: $499.99
(11 reviews) Write a Review



Custom built Subwoofer Box. Pictures are for examples only each box is custom built to your liking. 

**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**

11 Reviews

  • 5
    Top notch

    Posted by Mike Sperry on Sep 25th 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 22nd 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 5th 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 24th 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 27th 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.

  • 5

    Posted by Shane Norwood on Dec 28th 2018

    I can’t say enough about the amazing craftsmanship and customer service. Keith kept me posted on the status of the build from start to finish. The shipping packaging was beyond belief. Customer service is always top notch with JP and Down4Sound but this experience blew me away. Buy your enclosure from D4S - is you will NOT be disappointed!

  • 5
    Awesome Best Boxes availabile

    Posted by Rick on Oct 25th 2018

    Beat box availabile extremely durable and heavy duty for sure!! UPS man asked why a subwoofer box has to weigh that much!! Keith Is a magician with these boxes can’t go wrong!! Definitely will order another one

  • 5
    Absolutely Slams

    Posted by N.E on Jul 28th 2018

    Keith put a box together for my Fi TEAM Series V2 12" and it couldn't be more perfect. The sound this box puts out with that sub is phenomenal! That Fi hammers hard while still knocking out some lows.Tuned @ 32Hz, and absolutely rocks. I would have another enclosure built here, no hesitations. You get what you pay for, remember this!

    This little mountain town here in N.Idaho hates me, but I love this box!

  • 5
    Tremendous Knock

    Posted by Knock King of Kuni on Jun 27th 2018

    This box, plus my Fi NEO 12 and DB Apocalypse amp has make whole car flexing. Beautifully built, and the LED window is hella dope.