Subwoofer

Edit 26.12.2025: There was a CAD design error in the 2x4" baffle, not allowing for the port recess. This has been fixed now, in both STL and STEP files. Thanks, Jason.

NB: If you are using onshape for CAD, you can find and copy the original document in the public section, under Subwoofer 2x4" and 5.25" or my username Homunculus, make a copy and mod the heck out of it. Would be useful to adapt the baffle for other speaker chassis.

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Small ported subwoofer around 12L volume, can be extended to 18L (or more) if needed. The middle extension is about 6L volume, stacked in between the base and top. I have not built any larger version - so at your own risk.

Looks like a monolith 41x24x24cm, good as a foot rest or altar. Or add in the middle extension to make it even taller and arguably uglier.

This could be used as overkill PC speakers to attract noise complaints and eviction notes. Or to bluetooth in with you