---------------------- multipart/alternative attachment Hi Dale, > 8 mm /.320ish is on the thin side for a 9ft grand of any make . A >board this thin doesn't really need much thinning. In fact it's >probably not thick enough in the treble. Indeed on both counts. We make our panels 10 mm thick in the high treble, tapering down to 7 mm or slightly under at the rim behind the bass bridge at A1. > I'm unaware of the German factory's rhetoric on panel thinning. I'm >guessing it sounded a bit thin? It was really a bit too ill to tell what it might have sounded like when new. But certainly, with only 8 mm in the high treble, I think it has too little mass to sustain effectively. For my taste, I think the Hamburg Ds are a bit too short-and-shocky in the top as a general rule (but then again, they would probably say that my boards are too sustaining - it is purely a matter of taste). I prefer a bit longer fat-envelope, before the longer lingering gets under way. I'd like to hear a few recordings of well prepared US made Ds. I heard a US D played by Cyrus Chestnut in the 300th year television special which sounded pretty good. Anybody know what typical D panel tapering/thicknesses are for the US made Ds? Ron O. > Dale > >Very often the factory line doesn't match the actual product. How >often have we heard about the tapering of sound board panels from >S&S. They may have done it at some time but . . . The original board >which I pulled from a 1962 Hamburg D last year had a 8 mm thick panel >everywhere. I still have the original panel at the workshop. > >Ron O. > > > >Erwins Pianos Restorations >4721 Parker Rd. >Modesto, Ca 95357 >209-577-8397 >Rebuilt Steinway , Mason &Hamlin Sales >www.Erwinspiano.com -- OVERS PIANOS - SYDNEY Grand piano manufacturers ________________________ Web: http://www.overspianos.com.au Email: mailto:ron@overspianos.com.au ________________________ ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/ed/00/09/cc/attachment.htm ---------------------- multipart/alternative attachment--
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