Handcrafted bass and custom audio builds that hit harder

At Campbell Custom Audio, we design and build tailored subwoofer boxes and high-performance Bluetooth speakers crafted to elevate your sound experience in St. Louis and beyond.

What we build for you

From vehicle-specific vented sub enclosures to one-of-a-kind Bluetooth boomboxes, every piece is tuned for maximum acoustic performance, precision, and durability.

Custom subwoofer boxes

Engineered to exact airspace and tuning frequencies for your specific subwoofers and vehicle trunk or cab space, delivering clean, pounding bass.

Bespoke Bluetooth speakers

Portable, battery-powered sound systems built inside custom wood enclosures. Enjoy rich, room-filling sound with artisanal craftsmanship wherever you go.

Custom fabrication & tuning

High-grade Baltic birch or MDF construction with custom carpet, bedliner, or stained wood finishes tailored to match your personal aesthetic.

Audio advice & build logs

Need help dialing in your amp gains, choosing the right port area, or picking drivers? Check out our workshop guides and behind-the-scenes logs.

"The quality of the enclosure completely transformed my car's sound. The craftsmanship is flawless and the bass is tight and punchy. Truly top-tier work!"

Satisfied customer, St. Louis MO

Built with passion for pure sound

At Campbell Custom Audio, we believe that off-the-shelf boxes never do your speakers justice. We measure, cut, and finish every custom enclosure with acoustic precision to make sure you get smiles per decibel every time you turn on your system.

Frequently asked questions

Find answers to common questions about our custom speaker enclosures, materials, ordering process, and build timelines.

What materials do you use for your enclosures?

We primarily construct our enclosures from premium Baltic birch plywood and high-density MDF, assembled with heavy-duty wood glue, internal bracing, and air-tight seals to prevent flex and resonance.

Do you design boxes to fit my specific vehicle?

Yes! Every custom vehicle build is measured to fit your specific trunk space, under-seat clearance, or truck cab dimensions while maintaining the optimal internal volume for your subwoofers.

Can you build sealed and ported boxes?

Absolutely. We build sealed, ported, kerfed, bandpass, and transmission-line enclosures depending on the frequency response and output goals you want to achieve.

How long does a custom enclosure build take?

Standard custom sub enclosures typically take 1 to 2 weeks from final design approval to completion. Complex finishes and custom Bluetooth units may take slightly longer.

Can I order a custom Bluetooth speaker?

Yes, we build portable custom Bluetooth speakers tailored with your choice of wood finish, amplifier power, battery capacity, and premium audio drivers.

How do I request a quote for my project?

Simply reach out via our custom order pricing page or contact us directly with your speaker models, available space, and desired finish for a personalized quote.

Get in touch

Campbell Custom Audio
St. Louis, Missouri

Workshop hours

Monday - Friday: 9am - 6pm
Saturday: 10am - 4pm
Sunday: Closed

Direct contact

256-318-9673

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