1/4 Wave Acoustic Bass

Description

The idea is this... ABS is rigid enough to use as the body of a guitar, and if I have a resonator tuned for the middle frequency of the instrument, it might help make some good sound.

Some friends and I want to make jug-band instruments. I'm sort of inspired by the wash-tub instruments and the cigar-box bass I've seen people make. This is another variation.

Project Logs

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Pictures of Rev1
spam.dn • 01/01/2015 at 23:15 • 0 comments

Here are a couple pics of "Rev 1".
Status
spam.dn • 01/01/2015 at 22:48 • 0 comments

This is an old project... just though I'd do a quick update. It didn't work at all, really... I was working on the assumption that the air moved by the strings would generate enough sound to resonate in the chamber to make the bass sound, but but no good.
Rev 2, if I get to it, will have one end of the strings attached to a movable surface (green at the right side of the image below) at one end of the tube so that the mechanical movement of the strings can be more effectively translated to acoustic energy. Think strings anchored to a 6" speaker cone at one end of the tube with the cone resonating air in the tube...