RC vs CC again

[Richard Brekne]

I thought we had just made this point clear, but I see we need to dot
the i after all.

The CC board being stiffer thingy... applies only to the condition where
we have equally dimensioned ribs and panel, equal mass, and equal crown.
Given that, the CC board will be stiffer due to the extra stiffness
provided by the compression in the panel. Yes ?? As long as thats true
Daves post holds. If one or more of those things are varied then all
gloves are off as it were... and Dels post clicks in.

All of this suggests to me that in general, a CC board has an easier
time generating a higher stiffness to mass ratio...as long as the
compression in the panel holds. Yes ?

RicB

Delwin D Fandrich wrote:
> 
> > Is the CC board stiffer when both are fully loaded?  What you suggest is
> > that the CC board would have better sustain and the RC board would be
> > louder.   It will be interesting to hear Del's remarks on this because,
> > judging from various comments I've heard from him (and I may be
> mistaken),
> > he seems to emphasize sustain in the construction of his boards.
> >
> > David Love
> > davidlovepianos@earthlink.net
> 
> Again, with rib-crowning technology the soundboard maker has a few more
> options. The board can be made very heavy and stiff (leaning toward more
> sustain, but with a bit less power) or it can be made very light and
> flexible (leaning toward more power but with a bit less sustain). Yes,
> personally, I opt toward a bit more sustain and I don't mind sacrificing a
> bit of power if necessary. The amount of power loss will probably not be
> noticeable in real life. And the tonal dynamics are a bit better. At least
> that's the plan.
> 
> Del
> 
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-- 
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html
http://www.hf.uib.no/grieg/personer/cv_RB.html