<HTML> <HEAD> <TITLE>Re: DC</TITLE> </HEAD> <BODY> on 2/12/03 2:54 AM, KENNETH FINLAYSON at kennyfin@jetstream.net wrote: <BLOCKQUOTE>Hi List: Time and again I have come across DC inst= alled in a piano, and I feel the customer has thrown his money away. What re= ally was wrong was tight centre pins, or tight key bushings. As RPT's, our primary reason for existanc= e is not to make money: but to ensure quality piano care within the musical = community. I ran across another DC recently installed in a brand-new Samick.= In my opinion, it was a waste of money, which gave satisfaction only to the= piano store who made a profit by installing it. I never recommend DC. I don't believe in = them. I might someday, but it would have to be under very extenuating circum= stances. From David Slolnik, Feb 10, Vol 156 Section 3 :- "In fact, Stei= nway's web site makes absolutely no mention of DampChasers.  They recommend maintaining the room environment at betwe= en 45% and 65% by the use of room humidification, dehumidification and air-conditioning.  My experience has been that Steinway has been extre= mely reticent in recommencing the use of DampChasers, as they have no control <B= R> over the quality of the installation, nor the dependability of the product = itself." Kenneth Finlayson, RPT the thing is, soundboards, or real ones anyway, create the proper tone and = curve at 42% humidity.  the string tension against the board when strin= gs are tuned at 440cps., also is engineerd to the proper curve in the soundb= oard.  therefore, all soundboards should be kept at 42% relative humidt= y.  granted the DC systems are not the best way to do this, but by far = the practical way to, and are necessary and there are no different opions on= the subject because piano engineering is mathematical and physical science.= Armond </BLOCKQUOTE> </BODY> </HTML>