[pianotech] Wood over soundboard ribs

[Ron Nossaman]

On 11/8/2010 9:32 AM, Dale Erwin wrote:
> As well, the ribs on the B are pared down significantly at this point so
> as to compromise the ribs crown support.

Actually, no. With a purely compression crowned board, less tall ribs 
will crown more as they offer less resistance to crowning than do the 
taller ribs.


> As Ron N. has often said . I'll paraphrase...if you remove something
> that is supposed to be a design feature and the change is undetectable
> then was it? Ie. bells...ring bridge..etc

Yes, but... I guarantee that you can hear the difference between one of 
my Ds with a separate bass bridge, low tenor transition, and no wrapped 
trichords, and a stock D with a ring bridge. Same with the bell. Put in 
a mass loaded belly rail brace, or braces, and a real nose bolt, and the 
treble comes to life.

Ron N