Supratek and Synergistic Active Shielding

I 'm getting a great deal of hum from the active shielding
on the output RCA's. I'm using Nagra VPA and a Grange. The phono is worse than the line stage. Swapped iC and PC's, bpt 3.5 and Powercell.

Cr

crubio05-05-2009 12:03am

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crubio OP Details Discussions Posts This discussion Message User 89 posts 07-02-2009 at 12:13am Copy Comment URL Report Comment Edit Delete So I found the issue was with the ground wiring on the pre, the active shielding was just highlighting the problem. Supratek is great but a bit sloppy.
maril555 Details Discussions Posts This discussion Message User 619 posts 07-02-2009 at 12:56am Copy Comment URL Report Comment Edit Delete Could you define sloppy?
markwatkiss Details Discussions Posts This discussion Message User 508 posts 07-02-2009 at 10:28am Copy Comment URL Report Comment Edit Delete Seconds.
crubio OP Details Discussions Posts This discussion Message User 89 posts 07-05-2009 at 06:54am Copy Comment URL Report Comment Edit Delete well, my grange has the inputs wired backwards at the pot. All the right channels are actually left.

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