Chines and multi-piece rims

[Erwinspiano@AOL.COM]

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I.> iginal Message -----
> From: Erwinspiano@AOL.COM
> To: pianotech@ptg.org
> Sent: March 03, 2002 7:56 AM
> Subject: Re: Chines and multi-piece rims
> .
>        Dale writes
> >  I far prefer a laminated hardwood case. It must have superior impedance
> qualities over say soft wood rims but can't see why they'd have any
> advantage over a laid up hard wood (maple) rim. As long as there is a firm
> and rigid foundation for plate and board to attach to then all is well in 
> my
> world. Does this make a lick of sense?
> 
> Sure, but you're leaving out such things as soundboard size and shape, both
> of which have an effect on tone performance. Multi-piece rims can be made 
> of
> anything--they can be built-up or laminated (ours will be laminated maple).
> 
> Del
>              Del
         Speaking of that I notices your kind of alluding to the yet  
unexplained sound board shape comments. I presume they are proprietary. No 
sweat. But perhaps you or any one else wishes  to speak my comments as  to 
shape.
   I find the Model O steinway a difficult nut to crack so to speak when 
putting new boards in them. They seem to have a narrow range of parameters in 
which they work well. Meaning they seem to be sensitive to having there ribs 
stiffened much before the sound seems stingy. Probably partly scale tension 
issues I don't believe they tolerate much extra board thickness either. But 
it is more than that and I suspect the board /rim shape is a big factor.
 So I've been wondering if the steinway L that replaced it is a better mouse 
trap by virtue of the case design being broad tailed there by allowing for 
the different"sound board shape"as opposed to the very round tailed O model. 
I don't have the same difficultys with the Stwy model Ms. It would appear 
this broad style would have more area behing the bass bridge allowing more 
freedon of movement.
  I find the Ls to be less boomy in the bass and more mid rangish where the 
o's are frequently reffered to as a more romantic sounding piano.
     I've only one Model O in my clientele that has an original board with 
legitimate crown and adequate bearing and tonally it is an amazing sound.
    All the other O's I've encountered are mostly duds with flat boards.
     >>>>>>>>.Dale Erwin>>>>>>>>>>>>>


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