In the Yamaha factory they do not use steam methods for voicing. Just needling. You can not use steam on a Yamaha hammer Martin > From: "Erwinpiano" <Erwinpiano@email.msn.com> > Reply-To: pianotech@ptg.org > Date: Sat, 25 Nov 2000 21:52:35 -0800 > To: <pianotech@ptg.org> > Subject: Re: reply to Ilvedsen on yamaha hmrs > > Hi David > Sorry bout misspelling on your name .To answer your specific ? on shrink > wrapping haamers I thought a definition is in order . I consider a hammer > that thas been made so hard as to be inpenitrble to needles or ones that > even after much voicing soon return to there prior ear shattering ways to > bear my deragatory term shrink wrapped . I am sure there are a variety of > ways to do that .The one most familiar to me is the practice of introducing > steam into the felt as it is being pressed and under pressure.This practice > removes much or most of resilience , densifys the felt to the point of being > unusable. Now however that is being done at yam. or anywhere else would be > interesting to be sure and other opinions and insights and on sight > observations would be enlightening .But no matter how its being done we > still find a product as described above an impediment to voicing and > voicing stability. Would you agree? If voicing these hammers is so labor > intensive and difficult to achieve optimum results two things come to mind > .. Who pays for all that voicing and fine instruments such as yamaha often > are not heard at there best.Now I actually did't start all this dialogue to > say that all yam. hammers are this way or that this maker is the only one > with the above described difficultys and it is also not to say that I don't > enjoy the piano or my associations with this particular company. I'm just > expressing day to day frustrations of trying to create a full piano tone > with a type of hammer that is blocking my goals. There ,I think that's > enough backpeddling . I do have my favorite hammers that I use and would be > happy to share this info another time.But being primarily a rebuilder and > remanufacturer of instruments I try to use hammers that are easy to voice > and voicing stable so I'm not continually being called back for tonal > complaints. I't ain't good for business. sincerely Dale Erwin > > >
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