More CC vs RC questions was RE: Killer Octave & Pitch Raise

[Ron Nossaman]

>I don't want to turn this into a discussion about which is better.

I don't either, and wasn't attempting to. I thought I was answering the 
question.


>  While I
>have not heard enough RC&S boards to draw a conclusion, I am beginning
>to think that t          heremaybeasubtledifference.Ican'ttellyou
>exactly what that is, or even if it is for sure.  But I am wondering.

There very well may be. A re-designed RC&C board put into a Steinway has 
the same rim, only more rigidly braced than the original, probably with a 
substantial bass cutout that wasn't there before, and also possibly a fish 
that wasn't there in the original. It also will likely have a different 
string scale, very likely with smaller core wires and a C-8 speaking length 
of 52-54mm, rather than the 46-50mm found in the original. All things being 
equal, all things other than the soundboard aren't likely to be equal. Yes, 
the RC&S remanufactured instrument might very well sound different from the 
original, but so might another original of the same model. That was my 
point. I don't know any difference that might be heard that would indicate 
whether the board was CC or RC&S, as much because that isn't the only 
difference as anything. I do know that at higher attack levels, the RC&S 
boards with the other changes tend to be very difficult to overdrive into 
distortion, but that's not unheard of in a good CC board too.


>So my question is not meant as an attack on any particular method, it's
>more a question of whether or not there might be a reason that the ribs
>contributing more to the stiffness of the assembly than the panel in the
>two systems might not produce some acoustical difference and if so, why.
>I'd like to start there.
>
>David Love

It wasn't taken as an attack. I just plain don't know, and no one else who 
hasn't done direct comparisons with no other differences will know either. 
I thought I had already indicated that I couldn't tell by listening whether 
a soundboard assembly was CC or RC&S.

Ron N