This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Gee, Ron, I was going to say that it's because of the lack of strings in = the section under the strut causing a stiffness near the break, but I = don't know enough to use twenty dollar words like "impedance". Guess I = haven't been on the list long enough yet. =20 It could be going from agraffes to tuned duplexes. It could be that = the overall assembly is too flexible and the lack of string load at the = strut lowers the impedance there too much. String load does raise impedance. Maybe too few ribs, and/or not stiff enough. Is it the bridge that's causing the problem? How could you tell one way or another? =20 Ron N ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/16/52/85/e2/attachment.htm ---------------------- multipart/alternative attachment--
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