Building the Electro – Acoustic Sound Box

Kostas Karantzounis


This is a rundown of how I built the instrument for those interested in constructing something similar.

The box is 24″ long, 11″ wide, 6” tall. It has 2 piezo mics with volume control.

The springs act as both an instrument and spring reverb. 4 springs. 5 string guitar with dulcimer tuners.. 4 rulers. 3 kalimbas. Snare. Music box. Doorstop. Popsickle sticks. Metal tines.

I spent about $150 on the project. But I already owned a few of the instruments on the box, so that saved a little money.

Overall, it’s a fairly inexpensive instrument to build.


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