>What is there about the killer octave area of the soundboard that makes it >more prone to failure or poor performance? Most any old soundboard seems >OK at least tenor and below. Many, if not most have some high treble going >for it. What is it about the design, or increased stresses or whatever in >this area that makes the killer octave area develop? >Terry Farrell It's an impedance problem (or problems). The board isn't stiff enough in the killer octave area. Do archive searches on "impedance" and "killer octave" and prepare to spend at least a week reading. There's also some bearing loading and leverages there that explain how you can get both negative bearing and crown. Ron N
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