American Craftsmen

[Farrell]

No, not by a longshot. You need the vibrating panel to have some
stiffness/rigidity so that it can vibrate in a controlled manner. A 9 mm
thick membrane of rubber would not work well as a soundboard panel. Think of
a speaker cone - cheap ones are paper which are somewhat rigid. Expensive
ones are titanium or some type of carbon-fiber composite material that is
very light and very rigid. The cone is rigid so that it can vibrate and not
distort and the edge (usually thin rubber on a good speaker) is flexible to
allow the cone to vibrate. The situation is similar with the soundboard.

Terry Farrell

> I would think that the more rigid the material is the less it will vibrate
.
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> > >James Grebe