<!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 6.00.2900.2627" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Did you call Don Maninno at = Kawai?  He's a great resource!</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>I've heard good things about the pitch-locks on bi-chords.  The only time I heard them, they = were in the treble by the bridge and they seemed to deaden the tone.  Maybe = that's what you want.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>By any chance, could the bass = hammers on this piano been hit with keytop/acetone?  Is it that kind of hiss?  = Do you have any sample hammers you could test in the bass?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Barbara Richmond</FONT></DIV> <BLOCKQUOTE dir=ltr 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=bruce@bgpianotech.com = href="mailto:bruce@bgpianotech.com">Bruce Gibson Piano Technician</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, June 05, 2005 = 5:33 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Overtones - = Clarification</DIV> <DIV><BR></DIV> <DIV>Hello everyone.</DIV> <DIV> </DIV> <DIV>Last week I asked for assistance regarding overtones in bass = strings on a Kawai RX-2. I want to thank all those who generously responded. </DIV> <DIV> </DIV> <DIV>Some people asked me to be a little more specific about the = problem, so here goes.</DIV> <DIV> </DIV> <DIV>The problem is most prominent in the bass bi-chords, = although it shows up in the singles as well. High overtones are quite audible = in single strings of the bi-chord, ie. I've muted off one string. The overtone = is not coming from the back-string area, nor is it coming from undampered = strings, nor is it coming from the room or any other part of the piano. The = overtone is clearly being generated from the string itself. </DIV> <DIV> </DIV> <DIV>QUESTIONS:</DIV> <DIV> </DIV> <DIV>1. Has anyone had any luck getting rid of this noise by rescaling = the offending string(s)?</DIV> <DIV>2. Has anyone had any luck by installing Scott Jones' "Pitch = Lock" string couplers?</DIV> <DIV>3. Ted Sambell was doing some experimentation, at the Banff = Centre a few years back, by adding mass at one end of the string. Has anyone else = tried this? If so, please describe what you did and what was the = result.</DIV> <DIV>4. Is this just the nature of the beast, and the client is going = to have to live with it?</DIV> <DIV> </DIV> <DIV>I look forward to any suggestions and answers to my = questions.</DIV> <DIV> </DIV> <DIV>Sincere regards,</DIV> <DIV> </DIV> <DIV>Bruce Gibson<BR>Piano Technician</DIV> <DIV>Saskatoon, Canada</DIV> <DIV> </DIV> <DIV>Cell - 306.221.3786<BR>Fax - 306.955.3725<BR><A href="mailto:bruce@bgpianotech.com">bruce@bgpianotech.com</A><BR><A = href="http://www.bgpianotech.com">www.bgpianotech.com</A></DIV></BLOCKQ= UOTE></BODY></HTML>