[pianotech] soundboard grain angle vs "faux"stiffness

[Dale Erwin]

Hi Jim
 See below

 

 

Dale S. Erwin
www.Erwinspiano.com
209-577-8397

 





            
    
          
            
               It's dark, powerful and                    voluminous 
          
        
    are you by chance a wine taster by trade <G>  no
     my tonal envelope is power with out noise. Or as Starr Taylor says" Without the strident clang that permeates the piano tonal landscape of today"  Predominant fundamental balanced by upper partial clarity but no clang and little percussion on hammer impact sound.  I seem to be allergic to it
can I take this to mean prominent fundamental and lower partials    with a reduced prominence of the uppers?
    
    
          
            
The design spec: is a grain angle that                    follows the long bridge (approx 30 degrees off the                    long side)
          
        
    
    hmm.  Yes for me I've always measured it off the spine. Easier. Stwy models S,M,L,O are 45 degrees,(some )s in the 30's) and A's thru Ds are 40 degrees with some anomalies
    
            
          
,serious                  curved cut-off bar,
                  
                
        
      where does the cutoff end in relation to the tenor    ribs? See pictures
    
    Jim I
    
    
    
-- 

Jim Ialeggio

grandpianosolutions.com

978- 425-9026

Shirley, MA
  
 
=
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100714/720378e0/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Stwy b Board 3.JPG
Type: image/jpeg
Size: 135613 bytes
Desc: not available
URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100714/720378e0/attachment-0004.jpeg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Erwins own B 1.JPG
Type: image/jpeg
Size: 400888 bytes
Desc: not available
URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100714/720378e0/attachment-0005.jpeg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: stwy b Board 4.JPG
Type: image/jpeg
Size: 102374 bytes
Desc: not available
URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100714/720378e0/attachment-0006.jpeg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Racing stripe-Dennis.JPG
Type: image/jpeg
Size: 238880 bytes
Desc: not available
URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100714/720378e0/attachment-0007.jpeg>