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🔊 Subwoofer Plans

Sealed subwoofer enclosure plans

Build-ready enclosure plans, engineered for your exact driver

DXF cut files, full-size 1:1 print templates, 3D models, cut lists and a predicted response curve — tuned to a precise sealed alignment for each subwoofer. No guesswork. Cut today.

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8" subwoofers 10" subwoofers 12" subwoofers · 2 15" subwoofers · 2 18" subwoofers · 2

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Engineered, not guessed

Every box is solved to a defined sealed alignment with a predicted response curve, so you know what you are building.

Cut it any way you like

Whole-millimetre DXF for the CNC, or full-size 1:1 A4 templates you print, tape and trace. Same box either way.

Everything included

Per-panel cut files, nested cut sheet, STEP + STL 3D models, cut list and a hardware shopping list.

Guides

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How to build a sealed subwoofer box (step by step)

A practical, beginner-friendly walkthrough of building a sealed subwoofer enclosure — from choosing the right internal volume to cutting, bracing, sealing and mounting the driver.

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How to choose a subwoofer driver for a sealed box

A practical guide to picking a subwoofer driver for a sealed enclosure — what the Thiele-Small parameters mean, what size to get, and how to match a driver to your space and goals.

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Subwoofer break-in: what it is and how to do it

What subwoofer break-in actually does to the suspension, whether it matters, and a simple, safe way to break in a new driver before you measure or tune.

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