12 INCH SUB BOX ENCLOSURES
Why Choose a 12” Subwoofer Box from Down4Sound?
When you want to feel every note of your bassline, our 12 inch sub boxes deliver. Designed with competition-level airflow and kerf-ported designs, each enclosure maximizes output while keeping your sub safe and responsive. We offer a full range of options—from single 12 inch enclosures to dual setups tuned to 32Hz.
Our PRO-FAB and Team D4S series boxes are CNC-cut from high-grade MDF or premium birch wood, braced for strength, and coated in a durable black bedliner finish. Whether you're building a daily driver or a show car, these enclosures are precision-tuned and pre-tested by the Down4Sound team.
- Kerf-ported for tighter, deeper lows
- Dual & single 12” sub options available
- Built with CNC-cut MDF or birch wood
- Black bedliner finish for durability & style
- Ships fast from our U.S. warehouse
Need help choosing? Ask our team or check our Sub Box Guide to match your subs perfectly. Let the bass drop—with Down4Sound.
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DOWN4SOUND | PRO-FAB HD3 12 | 1 12 SUB BOX | SINGLE HD 12-INCH KERF PORT SUBWOOFER ENCLOSURE BOX
DOWN4SOUND
MSRP: $799.99$529.99High 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...HD3-1-12KPMSRP: $799.99$529.99Qty in Cart: 0Quantity:Price:MSRP: $799.99$529.99Subtotal: -
DOWN4SOUND | PRO-FAB V2 12 | 1 12 SUB BOX | SINGLE 12-INCH KERF PORT SUBWOOFER ENCLOSURE BOX
DOWN4SOUND
MSRP: $399.99$219.99Single 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...Single- BB-Kerf 12 Team D4S BOXMSRP: $399.99$219.99Qty in Cart: 0Quantity:Price:MSRP: $399.99$219.99Subtotal: