PREFAB AKA "PRO-FAB" SUBWOOFER BOXES

Build your own high-performance subwoofer enclosure with the Down4Sound PRO-FAB Birch Flat Pack Single 10, a DIY ported sub box designed for audio enthusiasts and DIY lovers. This flat pack includes pre-cut birch panels, precision-engineered to deliver...

Create your own high-performance subwoofer enclosure with the Down4Sound PRO-FAB Birch Flat Pack Dual 6.5, a DIY ported sub box crafted for exceptional sound quality and custom car audio projects. Designed for dual 6.5-inch subwoofers, this kit features...

Down4sound - Single 8 Inch Ported Sub Box enclosure (PROFAB BOX) Take your DIY audio project to the next level with the Down4Sound PRO-FAB DIY Flat Pack, tailored for a single 8-inch subwoofer. This ported enclosure kit is precision-engineered to...

Down4Sound PRO-FAB Birch Flat Pack Dual 8-Inch Ported Subwoofer Enclosure Box - DIY Kit with Precise Dimensions for Superior Bass  Elevate your car audio game with the Down4Sound PRO-FAB Birch Flat Pack Dual 8, a DIY ported subwoofer enclosure kit...

Tailored for the 2007-2013 GM/Chevy Crew Cab, this Down4Sound PRO-FAB No Lift enclosure provides a powerful, precise bass experience with dual 8-inch subwoofer openings. Constructed from premium birch, this enclosure is designed to fit seamlessly under...

Perfectly tailored for 2019-2024 GM Crew Cab models, the Down4Sound PRO-FAB enclosure is engineered to provide powerful, precise bass with dual 8-inch subwoofer openings. Crafted from premium birch wood and coated with a durable polyurethane bedliner,...

Upgrade your Chevy/GM Crew Cab’s audio with the Down4Sound PRO-FAB DuoSide 8-Inch Subwoofer Truck Box, designed specifically for 2007-2013 models. Featuring two 8-inch subwoofer openings on the passenger side, this ported enclosure maximizes bass...

Vehicle Fitment:Specifically designed to fit 1999-2007 Chevy and GMC Crew Cab trucks. Speaker Capacity:Accommodates 4x 6.5-inch subwoofers, providing an optimized sound experience for those who demand powerful audio in their vehicle. Installation...

Experience Extreme Sound with the PRO-FAB HD3 Dual 2 12 Inch KERF Ported Subwoofer HD Birch Enclosure Are you craving high-performance audio and extreme sound quality? Look no further than Down4sound's PRO-FAB HD3 Dual 12 Inch Ported Subwoofer HD Birch...

High performance and extreme sound, that's what you can expect from Down4sound's "PRO-FAB HD3" Single 12 Inch Ported Subwoofer HD Birch Enclosure. With a THICK triple baffle design, this enclosure has been specially crafted to handle the planet’s...

Dual 12 Inch KERF-Port Sub Box Enclosure - Down4sound PRO-FAB V2 KERF 2-12  Enhance Your Car Audio System with the PROFAB V2 KERF PORT Subwoofer Enclosure Discover the ultimate addition to elevate your car audio system's sound quality – the...

Single 12 Inch KERF-Port Sub Box Enclosure - Down4sound PRO-FAB V2 KERF 1-12  NEW v2 Prefab aka PROFAB single 12 kerf ported sub box enclosure is made from top-of-the-line materials that are designed to withstand even the most intense vibrations...