This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Hello Dave, Action parts are made by Renner for Steinway (even the hammers). Indeed the action is better, from what I know, the wood of the parts is less soft. The B model from Hamburg is one of the most universally apreciated instruments. The most current touch up you can have is that the keyframe is having a different pressure on the bolts depending of the season, very often a little correction is necessary, always while avoiding to definitively warp by too much srewing these somewhat sensibles keyframes. pressure checked on the bolts, may nock under a 2 fingers lift, avoid too much at the left/rigt ends or the balance rail will warp. Regulation is always 63 mm key height (64 acceptable) 10 mm dip or slighly less (9.75 given as a factory standard, but rarely applied) , 1mm or 1.5 mm letoff and 1 mm drop , minimal spring, checking as high as possible without rubbing tails , but a minimal aftertouch, too little aftertouch will give you the upmost power but less singing tone, too much will damp the high partials and make the action heavy, so the tone will say you also if you're right. BTW the tone also will say you if the bolts are even. Have fun ! Isaac OLEG Entretien et reparation de pianos. PianoTech 17 rue de Choisy 94400 VITRY sur SEINE FRANCE tel : 033 01 47 18 06 98 fax : 033 01 47 18 06 90 cell: 06 60 42 58 77 -----Message d'origine----- De : pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]De la part de Piannaman@aol.com Envoye : samedi 18 octobre 2003 08:33 A : pianotech@ptg.org Objet : Tuning a Hamburg B List, I had the pleasure of tuning a Hamburg S and S B the other day. What a pleasure(especially in comparison to some of the beater grands I get to work on). A wonderfully clear tone throughout. While a minor regulation will be necessary in the not too distant future, the action offers high levels of power and control. I know that the design in these is essentially the same is in the American version, but the final product is far more refined. They are not at all the same animal. I know that German spruce is used in the soundboard, but what about the other materials? Anybody familiar with the differences? I didn't have a chance to pull the action, but I was curious about that as well: Steinway or Renner? Inquiring minds want to know.... Dave Stahl ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/b0/70/d3/0a/attachment.htm ---------------------- multipart/alternative attachment--
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