Why do I like Class AB better than Class A?

Doogie - there is no difference in maximum power output in "Class A" or A/B its just a matter of how much bias current there is running in the output stage at idle The term "pure Class A" is a bit of a misnomer too as a speaker load is far form flat, a push pull amplifier biased for 50 Watts class A into a 8 ohm load would only "have" 25 watts of class A into a 4 ohm load although depending on rail voltage it would have a maximum power output of lets say 100 Watts into the 8 ohm load and a whopping 200 Watts into a 4 ohm load.

Nelson Pass wrote a very informative paper on this subject called "Leaving class A " it can be found on his website.

On my own amplifiers I have a built in the option to select High bias or Low bias I prefer the sound in High Bias but if just for background listening I leave them in low bias, no need to use up all that energy.

Good Listening All

Peter

Correction,

"although depending on rail voltage it would have a maximum" should be

"could have"

I am pretty sure the SA-103 (the replacement of the 100) and the SA-Reference that I have has a much lower output in Class A. 100W vs 300W in AB.

Are you sure you're not responding to one amp being silver and the other black? How you're able to leap from a quick listen sonic preference to a clear cut distinction between amplifier operating states is beyond me.