<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.6000.16481" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#d8d0c8> <DIV><FONT size=2>It's impedance matching.  Mass helps the bass strings better; springs help the treble better (if I remember right).</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>--Cy--</FONT></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=madvinmryk@yahoo.com href="mailto:madvinmryk@yahoo.com">vince mrykalo</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, June 30, 2007 11:49 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Damper felt replacement</DIV> <DIV><BR></DIV>Let's see, the spring action dampens the fundamental more, and mass affects the dampening of the partials...or is it the other way around...no, i think i was right the first time.  Right?<BR></BLOCKQUOTE></BODY></HTML>