ARC Ref 150se bias question

Good to read about the issue being resolved- fsonic.
Happy Listening!

For anyone mildly interested, I posted the same question over on AA's "amps and preamps" forum and got much more in the way of responses, one of which was something I should have known; switch the "bad" master and slave tube with corresponding tubes for the other channel and see whether the low bias reading follows the tubes. Duh! I did that and the problem did follow the tubes which means it was a tube problem and not an amp problem. I bought two new, matched KT150s from Upscale Audio which arrived yesterday and biasing was now a breeze. The amp now sounds much better, from very good to amazing. Moral of story-don't panic and instead think about the obvious. Second moral-no matter who the manufacturer is and what their tube quality assurance program is, brand new tubes that measured well can nonetheless go bad in a hurry. 

Thanks a ton Johnny R!  I will call you tomorrow.

Call me and I run you through it
 9732391799
 JohnnyR