not quite 'factory'?

[David ilvedson]

> Date:          Thu, 04 Sep 1997 10:22:09 -0600
> To:            pianotech@ptg.org
> From:          "Guy, Karen, and Tor Nichols" <nicho@lascruces.com>
> Subject:       not quite 'factory'?
> Reply-to:      pianotech@ptg.org

Guy,

Of course that is special add-on.  I believe it is called the 
"soundboard extensionizer"... or was that the "expression 
spring"..."insta-bearing device"...

David ilvedson, RPT
Pacifica, CA

Sounds like a good way to lose power in a piano fast.  Might be 
a good way to quiet down a piano...?  Is the piano gutless?

> List,
> 	Ran across a new one last night, and thought I'd check to see if anyone
> else has seen this on any Kawai grands they service.
> 
> 	KG-2C #736078, purchased NEW by a local recording studio years back.
>   On TOP of the central belly beam, directly under the tenor bridge, about
> where notes 36 thru 40 cross the bridge, is a collection of hardware that
> just doesn't look like factory installation. The pile consists of a nut (or
> bolt head)and washer on the beam, with a washer-type thing on top, and a
> heavy coiled spring bridging the remaining gap to the bottom of the board,
> where it seems to push up on the board (with a BIG flat washer), right
> under the bridge. It's very secure, although when agitated, it does make a
> little noise. It's hard to tell if there's a lot of lost energy due to the
> board being connected to the beam in this manner, but never-the-less, I've
> not seen a factory install of such a device, nor have I seen a "repair"
> like this before. Any Kawai guys on the list from way back when this puppy
> was made? Would you have done this? Perhaps the studio owner needs to talk
> to the dealership. I didn't think that their tech was that.....inventive.
> Who knows. I DON'T!
> 	Thanks for any feedback,
> Guy
> Guy Nichols, RPT
> nicho@lascruces.com
> 	"Irreversibility is the mechanism that brings order from chaos"
> 						Prigogine
> 
> 
ilvey
Pacifica, CA
ilvey@a.crl.com