Skating force at 45rpm


Recently got Brahm's piano concerto at 45rpm. I noticed that I needed to increase antiskate setting ( over my usual 33rpm setting )to maintain a even soundfield.

Is skating force higher on higher rpm?

I would prefer to stay out of arguing whether antiskate is setting is necessary.

THank you.
128x128glai

Showing 1 response by herman

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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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