Of course Del, you're right here. Now that I thought a little more about the problem, it certainly shouldn't be called a resonator since it's not mean't to resonate at particular frequencies, but to transmit all the vibrations of the strings. > I smile (sadly) when I see the video clips of some worker carefully tapping > each board before selecting it of use in a particular soundboard. The So, what's this knocking the boards all about? Why are they doing it? Calin
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