I'm not overlooking anything from the posts of the last 2 days, or 2 years for that matter. The issue remains achieving stiffness, not compression. I am still wondering, though, since you have been singing the praises of H Steinway and their traditional method of crowning whether your impression of their tone has changed since you discovered that their crowning procedure is different than you thought. You have argued for "differences" in tone between CC and RC&S boards. Perception is often based on preexisting beliefs and I'm just curious how that might have affected yours. An honest question, really. David Love davidlovepianos@comcast.net -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Ric Brekne Sent: Tuesday, June 21, 2005 11:43 AM To: pianotech Subject: Rib Crowned Soundboards. David. ....................... /In a reply in the not too distant past you stated that you felt that some compressioning (is that a word) was necessary for good tone. / ............... No, I did not. ............... /I could be mistaken, but I don't think so and life is too short to go searching. / ............... You are mistaken. ............... /I'm not looking to rehash the debate I was just wondering if your opinion had changed given this new revelation at Steinway. Anyway, installing the board at 6.5% EMC (as the RC&S guys are doing as well, as it turns out at H. Steinway, if they are not misinforming you) will result in a very small amount of compression. I think 6.5 is equivalent to about thirty something percent RH which would put the panel under a slight amount of compression at DC controlled 42%. David Love/ ............... Seems too me you are overlooking the amount of compression that can be built into the assembly by simply pressing the ribs and panel into a cauls with smaller radius then the ribs... be they flat or otherwise. You can very well achieve very significant levels of compression without drying the panel out, as I and others have said several times in the past 2 days. Perhaps you need to re-read the different ways compression can be achieved ?? Cheers RicB _______________________________________________ pianotech list info: https://www.moypiano.com/resources/#archives
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