the mass of the brass is a gass

[Overs Pianos]

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>What happens if you "ground" the cantilever to the board with a 
>tight-fitting block, or maybe a "soundpost"? Certainly that would 
>add stiffness.
>
>Tom Cole

That certainly would work Tom, I have done this with pianos such as 
the Yamaha C3 and the Steinway A, both of which use a cantilever 
throughout their entire bass sections (which displays a rather poor 
understanding of tone building in both instances). There is little to 
be gained by incorporating a cantilever in the low bass, but it is 
positively detrimental at the upper end of the bass bridge. A little 
wood block works wonders in this instance.

Where the lower end of the treble is displaying a low impedance 
problem, if the bridge is being replaced, extending the footprint 
further out towards the rim will help. Its certainly a better idea 
than a ring bridge between the two bridges. While the ring will help 
the lower treble bridge impedance, it will surely raise that of the 
lower bass, to kill of any chance of a decent full toned bottom end.

If bridge replacement isn't on the agenda, the mass loading approach 
is a marvellous fix.

Ron O.
-- 
OVERS PIANOS - SYDNEY
    Grand Piano Manufacturers
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