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Phantom + A90 question

How ahve users of this combination dealt with the inability of the Graham headshell to touch all three contact points on top of the A90? I'm considering the use of a carbon fiber shim from Millennium, pre-drilled with holes for the cartridge screws, between the cartridge and headshell to provide full contact. Think it's needed? Any other solutions? Is it even a problem?

Thanks,
Bill
wrm57

Showing 2 responses by rockitman

rockitman's avatar
rockitman
417 posts
 
I am going to take a closer look at my A90 mount. It didn't even think it was an issue. Perhaps a can of worms is now open, perhaps it's a non issue. My sound has been fantastic with the Supreme/A90 combo and the Supreme/Coralstone combo. I use a Foz for azimuth setting.
rockitman's avatar
rockitman
417 posts
 
Hi bill,
With unipivot bearings, they visually ride the groove different from gimble, quote on quote level heads shell with gimble type arms. You need a fozgometer to get it right with a graham, IMO. So even if the mate between cart and head shell isn't exact, you will correct that anomaly via Foz azimuth or o scops, graham head shells tilt inward by 2-3 degrees from vertical, ime
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