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In Reply to: RE: There was a thread over on another forum... posted by Tao on June 27, 2012 at 13:39:18:
Put no extra requirements on the vinyl whatsoever since SQ was an out of phase recording technique. CD-4 was an entirely different animal. It didn't work very well, but when it did work it was capable of much better seperation than any of the quad matrix techniques (SQ, QS, ABC Command Quad and any of the others that I may have left out).
I'm trying to find the patent filing for Q-540 vinyl. That will tell the story of their approach.
Ed
Life is analog...digital is just samples thereof
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Follow Ups
- CBS's formuation for their SQ pressings... - EdAInWestOC 17:26:43 06/27/12 (0)