Noisy Dampers on Shift

[Will Truitt]

Everybody's suggestions are all worthwhile and should be considered.  Just
because it's a Fazioli does not mean that it doesn't have hard trichord
felt.  It certainly wouldn't be the first new piano with hard felt - I
replaced the trichord felts on a less than a year old Steinway B a few years
ago under warranty because they were noisy.  

 

And you say "slow release of the key".  I'm not trying to blame the player
here, but I think if you release the key slowly enough, just about any piano
will " zzzzup".  I would have the player play the note and release in the
manner which he normally plays and gets this noise.  

 

It doesn't hurt to state the obvious sometimes too.

 

Will Truitt

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Paul T Williams
Sent: Wednesday, July 16, 2008 7:28 AM
To: Pianotech List
Subject: Re: Noisy Dampers on Shift

 


That's a good check to do.  You also might see that the back of the damper
lifts oooo so slightly before the front.  If they're absolutely flat, they
may have a tendency to produce that "zing" sound on slow release of the key.


Let us know how you fixed it! 

Paul 






paulrevenkojones at aol.com 
Sent by: pianotech-bounces at ptg.org 

07/16/2008 01:33 AM 


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Subject

Re: Noisy Dampers on Shift

 

		




Tom:

You might take a look at the trichord felt length (how far down through the
strings they protrude). You can trim that felt, and compress it, but then
need to re-time the damper since it will sit just a bit lower. 

Paul. 


-----Original Message-----
From: Thomas Cole <tcole at cruzio.com>
To: Pianotech <pianotech at ptg.org>
Sent: Tue, 15 Jul 2008 11:54 pm
Subject: Noisy Dampers on Shift

I just acquired a client who bought a new F183 Fazioli. Obviously it's a
very nice piano, but the owner is complaining of improper damper function on
several notes starting above C4, especially on shift. The hammers all shift
off of the first string in Faziolis so I can see that there might be some
phase shift between the strings of each unison challenging the dampers, but
he's only complaining about a handful of notes in the fourth octave.

The fact that the owner is formerly a synth player is likely why this effect
was so noticeable to him, but I must admit the buzzy cutoff on a slow
release of the key is not at all subtle. Even the dealer over the phone
could hear it.

So far, the trichord wedges are exerting equal pressure on the strings
(plucking doesn't reveal any leaks or uneven damping) and the dampers follow
when pressing on the strings. The technician who prepped the piano didn't
notice a problem but who checks damper function on shift?

Anyone care to take a shot at it?

Tom Cole 

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