Skating force at 45rpm

Not sure how that would affect the antiskating to much. I use very little antiskating on am SME V arm with the Benz LP-S. No problems using either speed on my setup.

Ciao,
Audioquest4life

Magnepan Unitrac I and Denon 103D(very low effective mass and high compliance). No problems here either, and I pay a great deal of attention to sound stage/imaging. It could be that your arm is more resistant to lateral displacement, than your cartridge's compliance, at the higher speed. Does your cantilever skew to the inside at all, at 45rpm?

Best way to test your theory is to play other 45's in your stash and see if they also like more AS. My bet is that this is one LP you have found that likes a bit more AS, and it just happens to be a 45.

At those speeds and deeper cuts, anti-skate keeps the stylus and arm in check, otherwise its digging into the record not seeking out the best groove information. Also the record at that speed could be off center enough to effect the sound...try some other discs. Would recomend Reference Recordings Symphony Fantastique by Berlioz.

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The linear groove velocity of a 12 inch LP is about 2 1/2 time faster at the beginning of the side than at the end. If the anti skate was that dependent on speed you would need to slowly change it as the record plays.

A 33 1/3 LP at the beginning of the side has about the same linear groove velocity of a 12 inch 45 LP an inch in from the beginning. If you hear this effect because of antiskating in the middle of the 45 you should also hear it at the beginning of the 33.

I think something else is going on.

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