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THE BEATLES IN MONOGene, I do not have a mono only cartridge, but I do have a mono button on my phono stage. From what I have read on line, the new Beatles in Mono lacquers were cut with a stereo cutting head. It affects the shape of the groove, not whether it is mono or stereo. Fremer says a mono cartridge would be best, but a mono button works too. I don't have a two arm TT and I'm not going to change out cartridges or arms just to listen to a mono record. The mono button is good enough.
This issue was addressed by Richidoo over on an AudioNervosa thread:"When a stereo head is used to cut a mono record, the dual drive coils are electronically synchronized. They are fed identical signals except for phase, just like a balanced signal. Since the coil signals are identical there can be no vertical motion, within the precision limits of the cutter head design. In this case the cutter is the most precise ever made, so there is little chance of vertical cutter motion. Besides, a mono cartridge is totally blind to vertical groove movement, even if it existed. "Check out the entire thread at:http://www.audionervosa.com/index.php?topic=5212.0
