[CAUT] [pianotech] Riblets

[Chris Solliday]

I haven't done the riblets yet but others say they bring good results. I
haven't heard any negatives.
Chris
----- Original Message ----- 
From: "Jeannie Grassi" <jcgrassi at earthlink.net>
To: <caut at ptg.org>
Sent: Friday, February 26, 2010 3:27 PM
Subject: Re: [CAUT] [pianotech] Riblets


> Thanks, Chris.
> This is helpful in visualizing.  I assumed Pianotek supplied good
> instructions, but I wanted to get a sense of what was involved.  Doesn't
> sound too complicated.
>
> I assume this is to improve the treble area.  Would riblets help in the
> bass?  I have a Yamaha C6 that is weak in the bass and I can't seem to
find
> any way to improve it significantly.
>
> Any recommendations that don't involve replacing the soundboard?
> jeannie
>
> -----Original Message-----
> From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Chris
> Solliday
> Sent: Friday, February 26, 2010 12:15 PM
> To: caut at ptg.org
> Subject: Re: [CAUT] [pianotech] Riblets
>
> Hi Jeannie,
> It is a turnbuckle that connects the rim to the belly rail. Fasten with 6
or
> 7 wood bolts, that are provided. I dry fit it by holding the thing in
place
> and screwing the buckle out a bit so it will stay in place, mark the holes
> with a punch and remove the resonator then drill all my holes, use screw
> lube, I use beeswax. Tighten wood bolts with a socket wrench.  A little
> turning of the buckle and you're in.Tighten to just get it snug and then a
> little  more and listen, go in 1/16th turns and listen, it usually doesn't
> take much, and there is a point where going beyond diesn't do any mor
> improving. And there is the point that is way beyond. Do not over tighten
as
> our friend from Ithaca can testify, you can tear out the belly rail if you
> try hard enough. Takes about 1/2 hour. Support is more evenly distributed
> along the belly rail. Projection, power and clarity are improved.
> They come with very detailed installation instructions.
> Chris
> ----- Original Message ----- 
> From: "Jeannie Grassi" <jcgrassi at earthlink.net>
> To: <caut at ptg.org>
> Sent: Friday, February 26, 2010 2:59 PM
> Subject: Re: [CAUT] [pianotech] Riblets
>
>
> > Hi Chris,
> > Can you please go into a bit more detail about installation of these.
> > Thanks,
> > jeannie
> >
> > -----Original Message-----
> > From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
> Chris
> > Solliday
> > Sent: Friday, February 26, 2010 11:49 AM
> > To: caut at ptg.org
> > Subject: Re: [CAUT] [pianotech] Riblets
> >
> > The device is the Grijalva Treble Tone Resonator (Pianotek part #
RH-4TRL)
> > and it would improve your problem, it might even do so amazingly, I just
> > wouldn't want to promise that much always, as results vary.
> > I have put over ten of these on and have always been satisfied,
sometimes
> as
> > I said the results are truly superior. Soundboard Geritol.
> > Chris Solliday, RPT
> > ----- Original Message ----- 
> > From: "Ron Nossaman" <rnossaman at cox.net>
> > To: <pianotech at ptg.org>; <caut at ptg.org>
> > Sent: Friday, February 26, 2010 12:50 PM
> > Subject: Re: [CAUT] [pianotech] Riblets
> >
> >
> > > Andrew Anderson wrote:
> > > > The school whose Steinways I service would like to ameliorate the
poor
> > > > balance between bass and treble in their D.  This D was a really
weak
> > > > treble.  Voicing the hammers up makes for a harsh attack but doesn't
> > > > seem to address power.
> > > >
> > > > Could someone who has utilized riblets on a S&S D comment on their
> > > > experience.
> > >
> > > I haven't dried riblets on a D, but I know of a couple of
> > > instances where it was tried, and heard one of them first
> > > hand. The consensus was that it was somewhat less bad, but not
> > > really better. Still, it's worth a try for the price of making
> > > a couple. I think the belly rail, unsupported through the top
> > > half of the scale by other than the "little stick", offers
> > > more potential, however. Pianotek sells a turnbuckle adjusted
> > > brace that will likely help more than riblets.
> > >
> > > Or if you'd like a more extensive modification...
> > > Ron N
> >
>