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VPI Classic platter - is center milled?

Is the vpi classic platter milled with a depression in the center? vpi recommends not using a mat, but my platter has a slight rise in the center.

With the provided ring clamp and gasket, vinyl stays 2 mm above platter with a lot of wobble. If I use the rubber mat, it seats the vinyl firmly.

Thanks for input.
abp689
brf
1,715 posts
 
Place a straight edge across your platter and see for yourself. I know that the Classic platter has a recess for the label.
sarcher30
596 posts
 
It's the gasket that is causing your problem. The gasket is
for use with the center clamp only. It's only useful if you
don't have the outer ring clamp. If you screw down the center
clamp enough, with the gasket underneath, it will flatten out
the record. If you screw it down too much it will dish up at
the edge. If you have an outer ring clamp, and a center
weight you should not use the center gasket.
bifwynne
2,206 posts
 
Agree with Brf. Apb689, you write that your "platter has a slight rise in the center." If that is really the case, your aluminum platter is defective. Check as Brf suggests.
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