Why would anyone want class AB amp when class A always sounds better ?

Just buy whatever sounds best to you..  Glad we have choices..
I will stick with Class A amps as they provide the best sound to my ears. I agree with @atmasphere , The topology is simpler, but requires a better PS and ways to manage heat. Those who buy based on efficiency alone are missing out..

I might be off here, but class A amps don’t drive lower impedance speakers very well either. Most class A amps aren’t stable into 2 ohm loads. Krell being one Of the exceptions.

I might be off here, but class A amps don’t drive lower impedance speakers very well either. Most class A amps aren’t stable into 2 ohm loads. Krell being one Of the exceptions.

Sorry your off, one word for both, no.

Cheers George

Big Boulder and Gryphon are stable down to negative impedance. Oops, slight exaggeration, but I was close. Down to 1 ohm, I think.

Really depends on the speaker in my experience. Went with the class A few esoteric 30 watts in my smaller room during a demo of a speaker I desired.  Made a deal for the speakers and demo amp.  Despite my current speaker 8 ohm 92 dB sensitivity the combo is awful.  Still waiting for speakers to arrive
From Scotland