Bob writes:
<< I think of power as a tone
having body to it. Is this from a full expression of
the partials? When we get a ping or a bite to the
tone from keytop then isn't that primarily exciting
the higher partials rather than the fundamental? >>
I think the power comes from the fundamental, and perhaps the next two or
three partials. HOwever, without the higher ones, our ears don't sense it. It
was really enlightening when I bought a pair of L110's (JBL speakers) at a
garage sale for $20. I got them home and hooked them up and was amazed at how
little sound I was able to get from them with a 100 watt rms amp.
Then I realized that the mid-range and tweeters were burned out. With
almost full power, they didnt' sound very loud or powerful. After sending them
back to JBL for new cones in the tweeters and mids, I re-installed them and
at 1/2 power they absolutely blew me out of the room! Our ears need the higher
partials to sense loudness and power.
The same is true of hammers. A set of rock hard hammers may seem to be
really loud on the stage, but without resiliency in them, they sound thin and
harsh out in the hall. It takes a balance to really speak and project.
I suppose you have a dead soundboard, but it would be a simple matter to
take a hammer from a good sounding grand in install it on this piano to see...
Regards,
Ed Foote RPT
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html
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