Mass Loading Bridges

[Tom Servinsky]

Ron,
I have a Erard with a new board that sings beautifully...except for the last 
1/2 octave. Fudging with the hammer placement has yielded only min. 
improvements. It almost sounds as though the board is stifled in that 
section. Thus the idea of mass loading the bridge has me thinking in those 
terms.

Tom Servinsky

From: "Ron Nossaman" <rnossaman@cox.net>
To: "Pianotech List" <pianotech@ptg.org>
Sent: Saturday, February 04, 2006 10:32 AM
Subject: Re: Mass Loading Bridges


>
>> Terry,
>> Does mass loading the bridge work for the high treble end as well?
>> Tom Servinsky
>
> It extends sustain somewhat, and makes the treble sound - clearer! Too 
> much brings volume down. Just like adjusting impedance response across the 
> bass/tenor break, you can juggle weights until you like the sound of the 
> result.
>
> I'm talking about new, working soundboards. Mass loading old dead boards, 
> you'll get what you get, or not. I recommend making up some weights of 
> some sort, and experimenting.
>
>
> "...the person that had took a bull by the tail once had learnt sixty or 
> seventy times as much as a person that hadn't, and said a person that 
> started in to carry a cat home by the tail was getting knowledge that was 
> always going to be useful to him, and warn't ever going to grow dim or 
> doubtful."
> -Tom Sawyer Abroad
>
> Ron N
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