In Reply to: Audio research tube bias setting posted by lefty707@hotmail.com on May 30, 2016 at 08:42:08:
You unit has some kind of servo circuit to maintain DC balance in the output tubes. There is a method of servo balance calibration outlined in your manual. I would definitely contact ARC before messing around with it.
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Follow Ups
- RE: Audio research tube bias setting - Palustris 08:56:59 05/30/16 (0)