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Built to Hit Harder

PREMIUM SUBWOOFER ENCLOSURES BUILT TO HIT HARDER

CNC-cut from Baltic birch plywood. Hand-finished in California. Engineered for the subs you actually run — Sundown, DC Audio, JL, and more. Starting at $199.

MADE IN USA
Thousand Oaks, California
BALTIC BIRCH
13–17 ply construction
CNC PRECISION
±0.005" tolerance
240+ SKUS
6.5" through 18" subs

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.

Customer Reviews

WHAT OUR CUSTOMERS SAY

Real feedback from verified buyers — every review is tied to a real purchase.

Shipping was a little slow but that’s not on the seller. Box is stellar. Cabinet grade I mean perfect. Worth the money. Edges are smooth. Finish is perfect.
Bada$$ box very clean looking and beautiful. Sounds awesome. Had a shi$ q bomb box they made my subs come alive by pushing the box. Shipping was great well protected. Thanks guys.
Had a minor issue with the box when it arrived, but seller was more than willing to make it right. The box itself looks and sounds awesome! Box compliments the sub very well!
Really a beautiful enclosure.... the wood work is amazing...... and the finish of the wood is beautiful. thanks
I hope this review goes to help anyone looking to buy an enclosure for HEAVY SUBWOOFERS... SPEAKING SUNDOWN AUDIO X12 V3 MODELS IM AM MORE THAN WILLING TO BUY AGAIN AND AGAIN DUE TO THE QUALITY AND CRAFTSMANSHIP OF MY…
Great 10 inch box huge hi‑end sound to it made very nice and packed super well sounds great with my 600w q bass sub rocks it love it birch has best sound by far
Box is absolutely beautiful inside and out. I recommend this box to anyone looking for a master piece for their sound system. Can't wait to show it off. Thank you
awesome sub box. excellent build quality and best customer service. best subs for sq as well. Andrew is a saint in the car audio business. extremely helpful
Received the box on Tuesday 2 weeks ago and installed it that night. It sounds amazing. The birch plywood construction is amazing and would look at home in a high end furniture store. I will definitely be ordering again…
Amazing enclosure!! Awesome build quality and sound quality!! Great price too!! Thank you!!
Solid box very impressed my sundown ns v6 sounds great in it definitely recommend craftsmanship is on point!
Box gets low and loud, came with zero imperfections when shipped. Shipping was fast too.

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 plywood, and hand-finished at our shop in Thousand Oaks, California.

Every box is built from 18mm or 24mm Baltic birch — panel and baffle thickness matched to the subwoofer's power handling and excursion. No MDF, 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.

240+
Enclosure SKUs in stock
13–17
Ply birch veneer layers
18/24MM
Baltic birch panel thickness
USA
Designed & built in California
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.
Inside the Shop

EVERY BOX, HAND-BUILT IN CALIFORNIA

From sheet stock to finished enclosure — CNC-cut, assembled, sanded, and quality-checked in Thousand Oaks.

CNC cutting
CNC cutting
Cut parts
Cut parts
Secondary machining
Secondary machining
Glue up
Glue up
Sanding
Sanding

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.
Baltic birch is stronger, lighter, and more resonance-resistant than MDF. Our 13-ply and 17-ply panels won't swell from moisture and hold fasteners significantly better — both critical for enclosures handling serious power. MDF is cheaper but heavier, more fragile, and prone to water damage. Every Basshead Supply enclosure uses genuine Baltic birch, never MDF or particle board.
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 the 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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