I hate biasing!

Pin the tail on the donkey is a great analogy.....I do have the yellow biasing tool....not sure how many hours are on the tubes.....in the 6-8 week intervals there is not a lot of drift but eneough that I want to use the tool to adjust. I would love the autobias aspect and if they ever offer an upgrade that brings this attribute to the Ref 75 I'd probably do it.  The Aesthetix Atlas amp does autobias but there is no dealer here and I would definately want to hear/compare it to the Ref 75 before going that way.  I have their Pandora Dac and have had the Calypso in the past and love/loved both of them.

Thanks for all of the feeback and Elizabeth its nice to see you "back in the fold".

The Asthetix Atlas has a transistor output stage so there're no output tubes to bias. The only tubes are the small signal types in the input section of this amplifier. The Atlas probably sounds different from the ARC REF 75 but not necessarily better.
Charles 

I agree completely. I used to have a Marantz 8b and it drove me to distraction with all the fussy fiddling over the bias. Get an amp that has cathode bias. Likely cost you less and save all the fuss and bother.

As a prior owner of a ARC D series amp...which I actually thought was a phenomenal amp, I can definitely say that the biasing scheme was ------

-----criminal!

My new tube amp has auto biasing, which has elevated this once serious concern to a non entity. Plus, the new amps sound even better than my old ARC.