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Using the VPI threaded clamp and azimuth change

I am using the VPI threaded delrin clamp that came with my classic 1. It is stated that the threaded clamp is to be used in conjunction with the rubber spindle washer. When it is used this way, it seems like it would negatively affect the azimuth setting. When you screw down the clamp and tighten it against the rubber washer, it does force the outer edge of the LP downward to touch the platter. This causes the LP to have a slight downward dish appearance. When I have set my azimuth on a level surface, does this not cause the azimuth to be out of alignment? Do I need to set my azimuth canted a bit to the outside of the platter to compensate for this effect? How are you VPI users adjusting for this?
andyprice44

Showing 4 responses by brf

brf
1,715 posts
 
Place the record on the platter, screw down the clamp and set the azimuth by ear.

I would not worry about the perceived "dishing" as it is so minute that I doubt that the azimuth between clamp on and clamp off is negligible.
brf
1,715 posts
 
Try a thinner rubber washer. They can be found at Home Depot.
brf
1,715 posts
 
Using an angle protractor only assumes that the diamond is "perfectly" aligned on the cantilever.

Setting the head shell parallel to the record surface is a starting point, not necessarily the end result. Trust your ears.
brf
1,715 posts
 
The VPI method of setting azimuth will allow you to realize about 85% of the cartridge's potential. Most people are satisfied with 85%. For those who want the last 15% of performance, you need to fine tune the azimuth setting by ear as most diamonds are not perfectly affixed to the cantilever.

Just like the VPI jig, it will get you close, but there are better cartridge alignment protractors that will give you better alignment.
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