Custom Subwoofer Box Plans
Design your enclosure online in minutes and get a ready-to-build plan: exact panel dimensions, net volume, port tuning and a 3D model. No guesswork, no wasted MDF.
What you get
- Exact external and internal dimensions in millimetres.
- A full cut list of every panel for 18 mm MDF.
- Net volume after driver, port and bracing displacement.
- Port length and tuning frequency calculated for your driver.
- A 3D view of the finished enclosure so nothing is ambiguous.
Who it is for
Anyone building their own subwoofer enclosure, or handing the job to a carpenter. The plan is a digital file — you can buy it from anywhere in the world, pay by card and get it in your profile or by email straight away.
How it works
Pick your subwoofer size, enter the space you have in the car, choose sealed or ported, and the calculator does the maths. When the numbers look right, buy the plan for €5 and the full cut list unlocks.
Plans worldwide, built boxes in Bulgaria
Digital plans are delivered by email to customers worldwide. Physical custom-built boxes are made and delivered only within Bulgaria.
Sealed or ported?
Sealed boxes are smaller and give tight, accurate bass. Ported boxes are bigger and much louder around the tuning frequency. The calculator suggests a sensible volume and tuning for both, based on your driver's Vas, Qts and Fs.
Your custom box plan — €5
Delivered by email or to your profile. No subscription, no surprises.
Start your build