I must say that my S-shaped soundboard Bechstein is about the thinnest sounding pianos I have ever heard! Terry Farrell ----- Original Message ----- From: "Delwin D. Fandrich" <pianobuilders@olynet.com> To: <oleg-i@wanadoo.fr>; "Pianotech" <pianotech@ptg.org> Sent: Saturday, April 19, 2003 2:09 PM Subject: Re: Killer Octave Question - S shape theory > > ----- Original Message ----- > From: "Isaac OLEG" <oleg-i@wanadoo.fr> > To: "Pianotech" <pianotech@ptg.org> > Sent: Saturday, April 19, 2003 3:33 AM > Subject: RE: Killer Octave Question - S shape theory > > > > I repost that as I will have a discussion with a colleague about it. > > > > S shape as took by the soundboard under the bridge in the killer zone > > being seen as a valuable profile from a stability point of view, > > bridge top being shaped in prevision of this set. I believe that one > > can eventually compute or ascertain where the inflexion point will be > > installing under the load. > > > > Reflex ion after having seen that harpsichord builders are supposedly > > wanting this shape to install on their soundboards, for the same > > stability reason (resistance to moisture change) > > I shouldn't think the S-shaped soundboard distortion found in many, if not > most, pianos possesing compression-crowned soundboards can be considered a > desirable feature. Or something that would be designed into either the piano > or the harpsichord. It is the natural result of the compression-crowning > technique being used to make an overly large soundboard and then loading > that soundboard along an off-center bridge. > > Del > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives
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