On Date: Sat, 9 May 2009 16:45:53 -0700 (PDT) Matthew Todd <toddpianoworks at att.net> wrote: >Thank you Ryan. I have heard several others here say weakening the damper return springs may help with the >dynamics. I am assuming the process for weakening/strengthening the damper return springs is similar to the > process for repetition springs on grands? Is this correct? For all you sorceres' apprentices out there who are now rushing with tools in hand to weaken vertical piano springs I say STOP! That is the very very last thing you want to try - if nothing else works. Those springs are there for a reason - so that the damper felt exerts sufficient pressure on the string to stop it from vibrating when it isn't supposed to. They do the job that gravity does in grand pianos. Weakening them always runs the risk of allowing some of the more troublesome dampers to "sing" or "leak" - that is, allow unwanted sounds to be heard. Only when one is sure that the action is in perfect regulation, and there are no other underlying issues - and those hammers are still bobbling - should one try this. And do it very, very carefully. And, by the way, I didn't see anyone here write anything about weaker damper springs helping with "dynamics". We are discussing remedies for "bobbling" hammers, aren't we? Israel Stein -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090510/6d67a859/attachment-0001.html>
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