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VTA adjustment for VPI 10.5 tonearm

I am trying to get the VTA adjustment right on my reference superscoutmaster signature/10.5/koetsu rosewood signature platinum combo and right now classic records 200g and 180g set at "85" position seem right with a slight boominess in the bass. With thinner records (140-150g), it seems I need to lower it to around the "50" position in order to not have a graininess in the sound. Is my thinking correct or is there some other adjustment like adjusting the gain (I am using 30ohm load on my pass labs xono phonostage)? Any input would be appreciated. Also, how do I know the correct distance to keep the rim drive from the platter and should it be in the silver ridge or should I adjust the minifeet to have the rim sitting on the black part of the platter?
powerdoctor

Showing 1 response by jazzgene

jazzgene
145 posts
 
I need to lower the 10.5i arm at the pivot a bit. With the VTA tower all the way down, my cartridge is still a tad high at the end.

I see a set screw next to the pivot. Not sure what moves though. The actual column or the pivot itself? Want to make sure before I adjust this.
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