Class A Power in A/B amplifiers?

Fascinating thread here. OP didn’t know how loaded the question was. 
The Pass Labs designer’s write up is excellent. I don’t know where this video is at the moment, but an interview with amp designers had John Curl: the question was, “how much bias do you use?”

”As Much as I can.”

- and back to the discussion of the balancing act between too much heat & distortion and SQ/ cost. 

It's the amp you don't see coming that blindsides you. ;)


That's just the honeymoon period.

My Krell K-300i has Class A for the first 90 of 150 at 8 Ohm.
My CODA #8 Version 1 is the first 18

abraxalito

George - yep, and the old torch bearer is yapping at my heels! Eeeek!

Yeah I got bored over at the other place, much more fun over here, for breaks giving **** to the snake oilers and voodooist like fusers, etc etc.
That sort of snake oil stuff is kept under control over there, so there no real dog fight action.
But I must admit it’s starting to become chronic here, as too many can see 10000’s% of profit selling re-badged 10cent fuses for >$150+ and having no overheads doing it!

Cheers George

It’s possible. You can get fairly close to full Class A performance with A-B, but may be limited by a slight lack of foundation to the sound. When people say class A is smooth, sweet, or well-rounded, those are subjective opinions. 

The conduction angle of class A is 360 degrees. Power hungry but with maximum performance.