Yamaha Soundboards

[Erwinspiano@aol.com]

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Hi Rick 
 Koniche wa (undisputed king of Norway)
Actually this doesn't surprise me. Since Sitka spruce is the strongest of  
the spruces I believe drying down Sitka that low is possible with out damage if  
it's not living in the jungle or missouri
 Even on occasion when I've dried down panels of tight  grained Sitka for the 
desert clients to 4.5% EMC, I saw no  evidence of compression ridging after 
stringing or before it left my  shop even though my area is a more humid 
climate than  Nevada.
 If your taking softer wider grain Eastern spruce or Engeleman then  buckle 
your seat belt. Ask me how I know.
   Dale

Hi  folks.

Having spent the month of october at the Acadamy in Hamamatsu, I  had the 
opportunity to meet a couple of the more legendary technicians in  Japan. 
One of these was a fellow named Mr. Takahara who had been involved  in 
design issues for the CF III for many years and recently moved on to  
work for Steinway Japan.  You all know me and  my interest in  comparing 
some of the information tossed around here on the list with what  
thoughts such people have whenever the chance permits, so I asked him a  
few things about soundboards and plates. According to him every  
soundboard panel meant for domestic instruments is dried to 4 % EMC  
before ribs are glued on. This is also the case for several instruments  
being made for export, depending on the end destination.  I was of  
course a bit suprised by all this given the very high humidity in  
Hamamatsu while I was there. When I mentioned some of the concerns aired  
on this list about drying panels out so much he simply said it was not  
in his experience that this created any special problems for pianos that  
are correctly cared for.


 
 
Erwins Pianos  Restorations 
4721 Parker Rd.
Modesto, Ca 95357
209-577-8397
Rebuilt  Steinway , Mason &Hamlin  Sales
www.Erwinspiano.com

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