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On Mon, 13 Feb 2006, phillip holmes wrote:

> With permission from Stan Ricker:
> ----- Original Message -----
> From: "Stan Ricker"
>
> Ya--------part of the cutter-amp circuitry; in a plug-in card, in the
> Neumann case, the amount of "pre-distort" is diameter-dependent, triggered
> by many microswitches along the sled-path.......just before the RIAA eq...
>
> > phillip holmes wrote:
> >> So the Dynagroove process was at the mastering end of things (between the
> >> tape deck and the cutter head)?
> ----- Original Message -----
> From: "Stan Ricker"
> To: "phillip holmes"
>
>
> >>> NEUMANN CALLED THIS "PREDISTORT" CIRCUIT" A "TRACING SIMULATOR"----AND
> >>> NOBODY LIKED IT EITHER.........THE TELDEC SYSTEM MENTIONED BELOW IS THE
> >>> NEUMANN SYSTEM..............THANK GOODNESS "DYNAGROOVE" WAS ONLY
> >>> MASTERING,
> >>> AND NOT ORIGINAL RECORDING AS WELL...........STAN

I have several of the commerically issued reel to reel tapes from the
dynagroove era. They seem to suffer from the same distortion problems I
found on the discs...or is that just a problem with my ears...

As I write this, I don't recall having heard any CD releases of the
dynagroove recordings. If the master tapes were ok, are the transfers
good?

One of my favorite BSO recordings from that time was the DelloJoio Fantasy
and Variations. After several copies of the disc and reel to reel tapes, I
gave up and now listen to concert broadcast tape I have.

Karl