I'm assuming you've tried pinning the centers on the tighter side? Loose pinning can really distort the tone... David Ilvedson, RPT Pacifica, CA 94044 Original message From: "Andrew Anderson" To: "College and University Technicians" Received: 7/29/2007 9:19:11 AM Subject: [CAUT] Weights vs Riblets in an S&S D Listmembers, Some questions in response to the journal article; practical application. I service an S&S D where we are really unsatisfied with the mid to upper treble killer octaves. I describe the sound a fuzzy. The upper partials clash and do not settle into a clear ringing tone. The high treble is fine. This is the kind of sound you get from cheap chinese grands when you try to play them loud--distortion. Problem is it happens at all dynamic levels. Needling hasn't helped, shellac got us back some power but the sound still fritzes and fuzzes on us. The Steinway Artist I was working with voted for replacement with Hamburg hammers (I'll second that one). I was thinking about swapping in different hammers to check if it is the hammers but with this article I wonder about other solutions. This four going on five year old S&S D has other issues but tonally we are experiencing a weaker, unresolved tone in this area. Would the use of riblets improve this situation? I clamped a small grip on a bridge-pin and did not notice a difference here and so didn't explore soundboard impedance any further. Perhaps stiffness and reducing the resonant frequency a little would help? Comments? Andrew Anderson at TAMIU -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/20070729/0f239660/attachment.html
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