<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE></TITLE> <META http-equiv=Content-Type = content=text/html;charset=windows-1250> <META content="MSHTML 6.00.2800.1400" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY text=#000000 bgColor=#ccccff> <DIV><FONT face=Arial size=2>Can I assume something like this would = be much more effective on a wood floor that is suspended, as opposed to a slab = concrete floor? How might they affect piano tone (not volume)?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Terry Farrell</FONT></DIV> <DIV><BR></DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">Here are some very handsome and effective caster cups made exactly for that = purpose.  They are two part brass cups, acoustically insulated = from each other by a ring of special vibration absorbent = material.<BR><BR><BR><IMG alt="" = src="cid:004601c50b82$0b345440$fbb62341@youro0kwkw9jwc"><BR><BR>Jurgen = Goering<BR>Piano Forte Supply<BR><A class=moz-txt-link-abbreviated = href="http://www.pianofortesupply.com">www.pianofortesupply.com</A>&nbs= p;<BR> <BLOCKQUOTE cite=mid200502050100.j1510xB13946@bridget.rudoff.com type="cite"><BR>I was wondering if there's anyone with experience soundproofing a room so as to minimize the output of a piano to = adjacent rooms/floors, without doing anything to the piano itself. = <BR><BR>Thanks. <BR><BR>- John <BR></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>