Joe wrote:

All I have to do is epoxy two 2"X3" bars to my steel hull and it turns
that area of my hull into an 8 foot diameter speaker. Great digital
sound that surpassess anything you ever dreamed of. My overhead,
decks, windows, desk all alive with music!!!!!!!!!

One word, Joe: resonance.

The stuff mght make a great equivalent of a voice coil, but there's far more
to a speaker than the thing that makes the vibrations happen - it's all
about the thing that vibrates, and the place it vibrates in. If you think a
steel box will make a great speaker cone, cabinet, and listening room, you
have a *lot* (read: nearly everything) to learn about sound reproduction.

Go to your nearest hifi store and ask them for high quality speakers made of
old water tanks. They'll still be lying on the floor, laughing their socks
off, when you walk out with a bemused look on your face. And order a bulk
supply of headache pills - you're gonna need 'em!


--
Wally
www.artbywally.com/FiatPandaRally/index.htm
www.wally.myby.co.uk