----- Original Message ----- From: "jolly roger" <baldyam@sk.sympatico.ca> To: <pianotech@ptg.org> Sent: January 15, 2001 7:27 AM Subject: Re: Re: Piano Warrenty/False Beats > DC systems do a great job of stabalizing the board and rim > structure. I don't think they make any difference to the bridge and > action. The moisture is concentrated only at the bottom of the board. We > have installed them on all of our University grands, and gained some > improvement in tuning stability, but no improvement in other areas. Hammers > still go mellow in the spring. This has been my experience as well. Back when I was servicing pianos out on the coast, it was not unusual to find pianos with well-protected (D-C's) soundboards that still had rusty and/or cooroded strings and tuning pins. > Vertical installation is another story, they > are very effective. Yes. But here the D-C and the majority of the piano's workings are together inside that nice, closed box. Del
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