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PREMIUM SUBWOOFER ENCLOSURES BUILT TO HIT HARDER
CNC-cut from premium Baltic birch or MDF. Hand-finished in California. Engineered for the subs you actually run — Sundown, DC Audio, JL, and more. Starting at $199.

SHOP SUBWOOFER BOXES BY SIZE
Find the right enclosure for your setup. Every box is tuned to manufacturer specs and built from premium Baltic birch or MDF.
12" Subwoofer Boxes
120 products · Starting at $299
10" Subwoofer Boxes
105 products · Starting at $279
15" Subwoofer Boxes
118 products · Starting at $349
8" Subwoofer Boxes
27 products · Starting at $249
18" Subwoofer Boxes
41 products · Starting at $449
6.5" Subwoofer Boxes
0 products · Starting at $199
ENCLOSURES FOR EVERY MAJOR SUBWOOFER BRAND
We build boxes spec'd to manufacturer recommendations for volume, tuning frequency, and port area. Choose your brand to see matched enclosures.
WHAT OUR CUSTOMERS SAY
Real feedback from verified buyers — every review is tied to a real purchase.
BEST-SELLING SUBWOOFER ENCLOSURES
Our most popular boxes — proven designs built from premium Baltic birch or MDF with precision CNC cuts and hand-applied finishes.
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WHY CAR AUDIO ENTHUSIASTS CHOOSE BASSHEAD SUPPLY
We're a manufacturer, not a middleman. Every subwoofer enclosure is designed in-house, CNC-cut from premium Baltic birch or MDF, and hand-finished at our shop in Thousand Oaks, California.
Every box is built to order in your choice of material — 18mm or 24mm Baltic birch, or 3/4-inch or 1-inch triple-refined MDF — with panel and baffle thickness matched to the subwoofer's power handling and excursion. No particle board, no shortcuts. Whether you need a ported box tuned to 32 Hz for daily driving or a competition-grade enclosure with reinforced baffles, we build it right the first time.
Ported enclosures
Tuned for maximum output and deep bass extension. Port area calculated per subwoofer model for optimal airflow and minimal port noise.
Sealed enclosures
Tight, accurate bass in a compact package. Perfect for SQ builds, daily drivers, and space-constrained installs.
Flat-pack shipping
Select models available as flat-pack kits for reduced shipping cost. Pre-cut panels with all hardware included — assemble with wood glue and clamps.
Cut-to-size Baltic birch
Need raw material for a custom build? We sell 18mm and 24mm Baltic birch sheets cut to your dimensions on our CNC.
EVERY BOX, HAND-BUILT IN CALIFORNIA
From sheet stock to finished enclosure — CNC-cut, assembled, sanded, and quality-checked in Thousand Oaks.





FREQUENTLY ASKED QUESTIONS
Common questions about our subwoofer enclosures, materials, and shipping.
Ported boxes are louder and produce deeper bass — best for hip-hop, EDM, and SPL competition. Sealed boxes give tighter, more controlled bass with a smaller footprint — ideal for rock, jazz, and sound-quality builds. Check your subwoofer's small parameters or the manufacturer's documentation for recommendations. Still not sure? Email info@bassheadsupply.com with your setup and we'll point you in the right direction.
Both build great enclosures — the right choice comes down to your goals. Baltic birch is our premium material: 13-ply and 17-ply cross-laminated panels that are strong, light, and hold fasteners well. Birch shrugs off humidity and takes a stain beautifully — ideal if you want the best strength-to-weight ratio and a finished, natural-wood look. MDF is a proven, value-priced alternative — we use a triple refined MDF, a heavier, higher-grade board that's dense and acoustically "dead," so the panel adds very little coloration of its own. On our Performance line, MDF enclosures are sealed with a durable black bedliner coating for a tough finish; on our Foundation line they ship bare for the best price. Choose birch for premium strength, light weight, and a stained finish; choose MDF for a dense, dead-panel build at a lower price. Not sure which fits your setup? Email info@bassheadsupply.com and we'll help you decide.
Yes. We carry enclosures designed for Sundown Audio, DC Audio, Deaf Bonce, JL Audio, Kicker, American Bass, Trinity Audio, and Resilient Sounds — all spec'd to manufacturer recommendations for airspace volume, tuning frequency, and port area. If you don't see your sub listed, contact us and we'll build one for it.
Most orders ship the same business day. If an item is not currently in stock, please allow up to two weeks.
The right box size depends on your subwoofer model's recommended airspace (measured in cubic feet) and the type of enclosure. Every subwoofer manufacturer publishes recommended sealed and ported volumes. Our product pages list the net volume and tuning frequency for each enclosure so you can match it to your sub's specs.
Yes — custom work is a regular part of what we do. Our standard catalog of 240+ designs covers most popular subwoofer models, but we regularly build to spec for unusual dimensions, specific tunings, multi-sub setups, double baffles, extra bracing, and other reinforced builds. Email info@bassheadsupply.com with your requirements and we'll get you a quote.
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Browse 240+ enclosures built from Baltic birch or MDF. Free shipping on all orders.
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