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RE: RCA Dynagroove

Early Dynagroove was so bad that after writing about it in a few issues of Stereophile, Gordon Holt refused to write about it any more. He considered it to have nothing to do with fidelity. I understand as years went by RCA stopped their crazy equalization to 'improve' inner groove sound and to make the LPs sound good on lousy gear and they went back to more normal audio engineering only maintaining the name Dynagroove.

Unfortunately Dynagroove also included new, thinner records which RCA claimed were flatter due to flexibility. Of course, the reverse was true and they almost never lay correctly on a turntable.

The very worst record I ever bought was a Dynagroove Ravel's Bolero. The mastering completely destroyed the piece. Bolero continuously gets louder throughout the piece. This increasing loudness is fundamental to the piece. But RCA decided that if they recorded that way it might overload poor systems so in the middle of the record when they thought it might be too loud they just reduced the level suddenly and started to increase the level again from this new starting point. I recall they did this a number of times. I don't know how many times since it's been decades since I've played this horror of a record.


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