[pianotech] Replacing dampers -- general comment

David Love davidlovepianos at comcast.net
Wed Feb 9 13:38:25 MST 2011


Maybe the bigger question is what constitutes improved performance.  While
there's a tendency to think of improved performance as faster shut off it
isn't necessarily.  In fact, a shut off which is too efficient can make the
piano sound a bit dry.  Also, getting faster shutoff usually means heavier
underlevers or springs and that can have a negative impact on the difference
between playing with the pedal engaged versus not.  Defining what is
acceptable in terms of the speed of shut off isn't always that easy but I
think, assuming shut off happens within a reasonable time, that the more
important thing is that the shut of is uniform from note to note or at least
graduates smoothly through the scale.  For that some "voicing" of the
dampers is always required not just with getting the dampers seated and
things completely shut off but with attention to the speed of shut off
between adjacent notes.  That particular aspect of voicing the piano often
gets by people, even those who set very high standards in other areas.  

 

David Love

www.davidlovepianos.com

 
 
 
Consider the tiny little dampers even on concert grands of 100 or so years 
ago (not to mention square pianos!).  It would appear that damping 
efficiency was not a great priority back then.  Of course, we can 
significantly improve damping efficiency fairly easily, today.  As with any 
design change, consideration must be given to preserving the original design

vs. improving performance.  I am generally inclined to improve performance 
unless there is a compelling reason to do otherwise.
 
Frank Emerson 
 
 
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