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<DIV>In a message dated 2/16/2005 12:19:41 A.M. Pacific Standard Time,
davidlovepianos@comcast.net writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><=
FONT
style="BACKGROUND-COLOR: transparent" face=Arial color=#000000 size=
=2>effect
of softer hammer, softer panel, might produce a tone that while<BR>having
adequate power (loudness) might not have the balance of partials<BR>to mak=
e
the tone interesting, lively, expressive, you choose your<BR>favorite
word<U>. So control of the panel's EMC, while seemingly not
as<BR>critical for purposes of achieving stiffness in the assembly
overall,<BR>might still be very critical in order to achieve a certain
tonal<BR></U>balance.</FONT></BLOCKQUOTE>
<DIV> <FONT size=3>David</FONT></DIV>
<DIV><FONT size=3> I think this is possible & is my
thinking. When panel compression exsists some dynamic tension bet=
ween
the rib being bent up a bit by the panel compression & the rib wanting t=
o
pull it back down creates continual static & dynamic reactive
force. Perhaps some of this is healthy & building boards =
attempring to shape & mold certain characterisitcs is very
interesting.</FONT></DIV>
<DIV><FONT size=3> I've been logging all the data per given board to =
keep
track of the design parameters & then draw a conclusion based on th=
e
sound I get. Ie original rib width,height,length. New rib crown width ,new
length, Panel thickness , tapering ,where & how much.
Rib tapering etc.</FONT></DIV>
<DIV><FONT size=3> I installed the Mason board with cut-off, fish and=
altered rib heights & widths, weds. & when the clamp came off i=
n
the morning & it already had a very healthy & vibrant boom/rap =
even
though the tight bond surely isn't thoroughly cured. This is not usually the=
case. </FONT></DIV>
<DIV><FONT size=3> Dale</FONT></DIV>
<DIV></DIV>
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