<HTML><HTML> In a message dated 10/3/05 10:22:29 AM, pcpoulso@pacbell.net writes: <BLOCKQUOTE CITE STYLE="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; = MARGIN-RIGHT: 0px; PADDING-LEFT: 5px" TYPE="CITE">there was a noticable= loss in tone and volume. This was on a treble note. Have you noticed any su= ch effect? </BLOCKQUOTE> The Pitchlock guy, forgive me but I forget his name, came to our chapter mee= ting last year and gave us a demonstration.  He had put a Pitchlock cl= amp on one key and asked us to just listen and tell him which one had the cl= amp on.  He played four different notes, repeatedly, loudly and then s= oftly, and we then voted on which note had the clamp on.  There were a= bout 40 techs there that night, and each note got about ten votes.  <B= R> If a roomful of technicians can't tell which note had the Pitchlock clamp on= it, no consumer is going to be able to hear any difference. I have installed one set on a horrible little console owned by a professiona= l bass player.  There is no question that the piano sounds cleaner tha= n it did with some of the false beating being masked by the Pitchlock clamps= .  So I waited about two months and then called him to ask how he felt= about his piano now; did he notice any change in tone color, or sustain, or= any other negative?  He responded that the piano still seemed to be i= n tune, and sounded great. >From what I understand, if you position the clamps too closely to the bridge= you can get a loss of tone color and sustain, so just be careful in positio= ning them and in my opinion, you should have no problems related to lack of = sustain or volume, or poor tone. Tom Sivak Chicago</HTML>