Yamaha electric grand of mid 70's to mid 80's origin

[Marcel Carey]

Hi Tom

I had quite a few experiences with CP70 and 80. I still service one of them.
The treble part sound quite nice, but the bass has such short strings that
the inharmonicity makes the bass almost untunable. Chameleon II can't even
measure A-1. Even if you take this piano apart in two pieces, you will need
another person to move it. It is quite heavy. Nad finally, no, it doesn't
have a soundboard. The tuning is quite stable but it only has 2 strings per
unison so when unisons go out, the piano sounds worse than a 3 strings per
unison instrument. The bass strings have quite a bit of tension and I have
had to replace quite a few. If you are a heavy player, I would personnally
stay away from it.

Marcel Carey
Sherbrooke, QC
-----Message d'origine-----
De : Martin, Thomas N (MARTITN5) <MARTITN5@Juniata.Edu>
À : 'pianotech@ptg.org' <pianotech@ptg.org>
Date : 1 septembre, 1998 15:27
Objet : Yamaha electric grand of mid 70's to mid 80's origin


>Hi List,
> Does anyone on this list have experience with the Yamaha electric
>Grand (CP70?)?  I played on one on a cruse ship about 8 years ago but,
>didn't pay it much attention - I don't remember it sounding bad though.
>What are your experiences with this instrument?  Apparently it can be put
>into two cases and transported?  How practical is this?  How well do these
>things hold a tuning?  Are they of anywhere near the quality of Yamaha's
>other acoustic instruments?  Are their actions special or standard?  Also
>what are their dimensions.  I have a Clavinova in my apartment now but, I
>would like to have something better (it isn't practical to move a C3 around
>much though - and it's pretty loud in small spaces) I'd like to use this
for
>practicing and perhaps small-time home recording for family and friends.  I
>also read one ad that said they had a soundboard - they don't do they?
>Thanks,
>Tom Martin
>