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SRA change from 140g to 180g

Assuming there is 1mm difference in thickness betw 140g and 180g record and I started out with a 140g record with SRA at 90 degrees. When I put on a 180g record, SRA changed by 0.25 degree. (Provided I mantain the same VTF and using 9inch arm.

Is this correct? sin-1 (1mm/ (25.4mm*9))

I am amazed at how much I need to adjust VTA to maintain the same bubble reading on the Phantom 2.

I ultimately set by ear and ignore the bubble.
128x128glai

Showing 2 responses by jfrech

jfrech's avatar
jfrech
1,816 posts
 
Hi, i haven't been one to fool with vta to much. I have a setting for 200 and
180 gram etc and kind of stick to that. Well, listening to a new speakers
corner lp i just got, sounded a little lame...moved the arm down a little and it
really opens up. (Using a TriPlanar)

You can almost go mad with all the vinyl tweaking possible !

Syntax, you're almost saying the arm is more important-maybe not that
strongly? Or possibly a easily adjustable arm...

Glai: any comments on the tri vs graham? is it more of a system matching
thing for you or a improvement? You've had some nice arms...
jfrech's avatar
jfrech
1,816 posts
 
Glai, thanks for the comments-appreciate it. Mid last year you posted several times regarding the Spiral Groove Centroid arm. Did you ever try that or explore this option?
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