<!doctype html public "-//W3C//DTD W3 HTML//EN"> <html><head><style type="text/css"></style><title>Re: Rib Crowned Hamburgs ?</title></head><body> <div>Hi Dale,</div> <div><br></div> <blockquote type="cite" cite><font face="Arial" size="-1" color="#000000">  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.</font></blockquote> <div><br></div> <div>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.</div> <div><br></div> <blockquote type="cite" cite><font face="Arial" size="-1" color="#000000"> I'm unaware of the German factory's rhetoric on panel thinning. I'm guessing it sounded a bit thin?</font></blockquote> <div><br></div> <div>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.</div> <div><br></div> <div>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?</div> <div><br></div> <div>Ron O.</div> <div><br></div> <blockquote type="cite" cite><font face="Arial" size="-1" color="#000000">  Dale</font><br> <font face="Arial" size="-1" color="#000000"></font> <blockquote><font face="Arial" size="-1" color="#000000">Very often the factory line doesn't match the actual product. How<br> often have we heard about the tapering of sound board panels from<br> S&S. They may have done it at some time but . . . The original board<br> which I pulled from a 1962 Hamburg D last year had a 8 mm thick panel<br> everywhere. I still have the original panel at the workshop.<br> <br> Ron O.</font><br> <font face="Arial" size="-1" color="#000000"></font></blockquote> </blockquote> <blockquote type="cite" cite><font face="Arial" size="-1" color="#000000"> </font></blockquote> <blockquote type="cite" cite><font face="Arial" size="-1" color="#000000"> </font></blockquote> <blockquote type="cite" cite><font face="Arial" size="-1" color="#000000">Erwins Pianos Restorations<br> 4721 Parker Rd.<br> Modesto, Ca 95357<br> 209-577-8397<br> Rebuilt Steinway , Mason &Hamlin Sales<br> www.Erwinspiano.com</font></blockquote> <div><br></div> <div><br></div> <x-sigsep><pre>-- </pre></x-sigsep> <div><font face="Times" size="-2" color="#000000"><br></font></div> <div><font face="Times" size="+1" color="#0000FF"><b>OVERS PIANOS - SYDNEY</b></font></div> <div><font face="Times" color="#0000FF"><i>  Grand piano manufacturers</i></font></div> <div><font color="#000000">________________________</font><br> <font color="#000000"></font></div> <div><font face="Times" color="#000000">Web:    http://www.overspianos.com.au</font></div> <div><font face="Times" color="#000000">Email: mailto:ron@overspianos.com.au</font><font color="#000000"><br> ________________________</font></div> </body> </html>