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

[Ron Nossaman]

>    Sarah
>  What your describing is a linear spring rate. IMO a sound board system 
> is more non-linear
>  This is the way it responds under my hand when stressing the panel to 
> set bearing. The first 2-3 mm I compress it are not difficult but after 
> that it get's way stiffer. Hammers are also non linear felt springs.
>   Dale


A soundboard assembly is a non-linear spring by measurement, and I suspect 
panel compression accounts for most of that non-linearity. The lower the 
compression levels in the panel, the more linear the spring rate should be. 
That should encourage greater amplitude of movement at any given loading if 
back scale lengths allow.

Ron N