The one I used definitely helped. Anything that will stiffen the area
will no doubt work. It is not quite apparent to me why stiffening the
belly rail helps in similar fashion to solutions such as riblets are
purported to do, but evidently this is the case. Strikes me as a bit
odd tho that stiffening the area directly under the bridge in the killer
octave region and stiffening the belly rail along this same area should
effect effectively the same kind of result... but there is a lot I don't
understand.
Some years ago Del F. was experimenting with some very strong springs
appropriately placed directly under the bridge and supported by
additional beams attached to the understructure. I've been working on a
scheme using high power magnets (and no... I am not worried about
pacemakers for crimminy sakes) in opposing orientation. This removes
any physical coupling from the understructure to the soundboard and adds
minimal mass. The idea is actually to provide for a to some degree
adjustable downbearing support for a SB system that is then less
dependent on the rib structure for its net strength. But I suppose the
idea should world just dandy for providing more effective stiffness
under the bridge in the affected area.
Cheers
RicB
I have several customers that own Steinway D's in there home and
from time to time are interested in having me re-voice their pianos
to build up the area of the killer octave. I am reluctant to do this
because the pianos sound very even going thru these areas. Does the
Pianotec treble tone resonator work in situations such as this? Are
there any negative side effects to it at all?
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