Steinway Upright Dampers

[Pianocraft@aol.com]

David,

The kind of damping problem you are experiencing may not be related to the
dampers themselves. There are a number of piano designs, large uprights and
squares, that seem to promote poor damping due to the soundboard not the
strings. In these the sound will continue even if all the strings are muted.
I am not sure exactly how this happens but speculate that an area of
soundbaord is either too far from the bridges or  insufficiently stiff either
by being too thin or lack of  downbearing. In your case maybe the board is
flat and the bearing does not compress the far corners enough.

John Hartman RPT
NYC Chapter
Hudson Valley Piano Craft
(Piano Rebuilding)
                                    "It aint just tuning!" Old Steinway man.