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1 eco amp 4 iPhone Papercraft Passive Amplifier

Passive amplifiers have been doing their acoustic trick since before the Victrola was cutting edge. It’s pretty simple, really– just make some noise on the working end of a horn and you’re likely to hear it a little bit easier in the direction it’s pointed in. The concept works in reverse, too.

This eco-amp from the folks at Eco Made is a die cut piece of 100% post consumer chipboard that you can fold together into a fully functional passive amplifier. It comes unassembled flat, so it’s easy to store until you’re ready to use it. [via gizmag]

Adam Flaherty

I make cool stuff and write about other people making cool stuff on makezine.com. If you have something you think I should see, send me a tip.


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