http://joeyroth.com/ceramic-speakers/
surprised these didn’t come up yet.
Those are pretty awesome. We had a pair out at Nike a few months ago… didn’t try out the audio, but I love the brutal simplicity of the design.
Got people that like to touch your speakers and move them around, mess up the sound balance? Get a setup like this and they won’t be doing it for long.
Actually it seems hard to believe it works, and I’d want to see it myself, but there’s enough talk about it and information that it must be possible.