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 2 responses by colinb

As anyone out there tried to fit a VPI 10.5i to an Avid deck? I am just doing this and at the powest VTA setting the arm is still quite high at the back thus not being able to start with a level setting
Perhaps I have not quite explained my problem correctly.I am glad you know what I am trying to do, but what is happening is that on my lowest setting the back of my arm is SO much higher than the tip I think I am missing out on my optimum setting which could be somewhere between here and level, I totally agree with your thoughts but I am so far away from the 90degs to the record