Tube auto bias circuits are SO cool...I wish they had 'em in guitar amps. They get rid of an issue I've always had with high end tube amps.
Manual vs. Auto Bias
In considering new directions in which to take the evolution of my system, I have run into conflicting claims as to which results in less distortion...auto or manual biasing, according to what product(s) the so called expert manufactures and/or represents...(Surprise!) How about some input from average consumers like myself who have had more experience with one or both?