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

[David Love]

I don't want to turn this into a discussion about which is better.
Clearly, there is a large variation within the CC board class due to the
greater difficulty in controlling the outcome.  I am more than willing
to acknowledge that this variability is a downside to CC boards.
However, among the CC boards that do work well (let's say Steinway
pianos--and I have heard enough Steinway pianos to recognize a certain
pattern of tone production), there is a certain kind of sound.  While I
have not heard enough RC&S boards to draw a conclusion, I am beginning
to think that there may be a subtle difference.  I can't tell you
exactly what that is, or even if it is for sure.  But I am wondering.
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
davidlovepianos@comcast.net 

-----Original Message-----
From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On
Behalf Of Ron Nossaman
Sent: Monday, February 14, 2005 5:05 AM
To: Pianotech
Subject: RE: More CC vs RC questions was RE: Killer Octave & Pitch Raise


>However, what I would like to know (without having to take on the
>impossible--for me at present--task of trying to build two boards in
>order to compare), is whether, all other things being equal and for the
>period that they are functioning to their capacity, the RC&S and the CC
>board are acoustically equivalent.

What two CC boards coming out of the Steinway NY factory are
acoustically 
equivalent? Much mileage is given to the concept of the uniquely 
individualistic nature of each piano produced by these methods. Why do
you 
suppose that is? Why don't we turn this around and see if anyone can 
produce CC boards that are acoustically equivalent to a good RC&S board?

Whatever that may be. Again, if there is a meaningful acoustic
difference 
between these two construction methods, one should be able to tell by 
listening, which method was used. If they both sound good, they both
sound 
good.


Ron N

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