Duplex

[Farrell]

Have you closely examined the soundboard shape and downbearing (front &
rear)?

Terry Farrell

----- Original Message -----
From: <larudee@pacbell.net>
To: <pianotech@ptg.org>
Sent: Tuesday, October 16, 2001 2:20 PM
Subject: Re: Duplex


> David,
>
> I have used Dan Franklin's duplex tuning methods on two pianos.  I find
the
> benefit to be mainly in the clarity and richness of the sound.  It
enhances
> some of the overtones and reduces some of the harshness, but to some
extent
> I suppose it might also add to power and sustain.  I think it is mainly an
> enhancement rather than a corrective procedure.  If there is a problem
with
> sustain, I would look elsewhere.
>
> To the extent that the problem might be in the duplex area, I would be
more
> inclined to suspect the front duplex rather than the back, to look at
> bearing problems in either area and other usual suspects.  Is the piano
> new?  Old?  Rebuilt?  What is its general condition?  What about the
strike
> point?  Sometimes a small adjustment there can make a difference.
>
> Paul Larudee
>
> David Ilvedson wrote:
>
> > List,
> >
> > I have a Baldwin D with poor sustain in killer octave and am looking for
> > ways to improve it.  I am interested in the duplex tuning claims of
> > improved sustain.  Any input would be appreciated.
> >
> > David I.
>