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In Reply to: Picked up my new VPI table...question posted by Eflatminor on October 10, 2006 at 17:04:07:
If the tonearm is lurching to the outside of the platter as it is lowered then chances are your anti-skate is too high. If you calibrated AS using the HiFi News Test record, then it definitely is too high. Search the forum on recent comments concernting anti-skate setting. Doug Deacon has some great suggestions.
Follow Ups:
i didn't read your post carefully enough and i thought it was just a problem clearing the ring. but after re-reading, jrags suggestion seems right on.
First, make sure your table is level. If it is, then excess antiskate is the most likely cause of outward cueing drift. A damaged or mis-adjusted cueing mechanism or arm support is possible, though perhaps unikely on an arm you've used for years and presumably know well.I recently determined that the optimal AS setting on my rig is FAR lower than the so-called "normal" settings. It's even lower than the "1/2 of VTF" or "1/3 of VTF" many other inmates use.
Try reducing AS to the lowest setting your arm allows. Then increase in tiny increments until you've applied just enough sideways bias to prevent R channel mistracking on dynamic passages (real music, not test records).
I posted this method on Audiogon and *almost* everyone who tried it reported significant performance improvements, just like we got. Try it, you may be happily surprised.
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"Do not meddle in the affairs of wizards, for they are subtle and quick to anger." - JRRT
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