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


Cost ? Heat? Reliability?
inna

yes I that was said before "I might be off here" and I replied to him.
Yes way off!!

And gave the explanations why.

https://forum.audiogon.com/posts/2130814

https://forum.audiogon.com/posts/2132377

As no one in their right mind would prefer the sound of class-B xover distortion no matter how little.
To the same amp in Class-A (unstressed) with no xover distortion.

The doubters, should do themselves and those here a favor and listen to a Gryphon Antillion that can be switched from 10w Class-A to 50w Class-A to 100w Class-A on the run while listening. And there are others like the Parasound JC1’s etc etc

Then the persistent doubters can hang their head in shame for even suggesting Class-B can sound better than Class-A if all is equal.

Cheers George


As no one in their right mind would prefer the sound of class-B xover distortion no matter how little.
There aren't any class B amps available in the consumer market, so this is no worries.

Wrong info to those reading this.
When listening at normal to loud levels "or" on hard to drive speakers,  Class-B xover distortion is just as prevalent in low bias Class-AB amps when pushed past the low Class-A bias point. And thats fact.
 
And I'll say it again.
For the same given amp that is comfortable within all it's design aspects either at 100w Class-A bias or at 5w Class-A, the 100w Class-A bias will ALWAYS!! sound better. unless you are listening to 110db horns
You can prove this for your self by listening to an amp with user switchable bias while listening. EG Parasound JC1 Gryphon Antillion etc etc.

Cheers George   
For the same given amp that is comfortable within all it’s design aspects either at 100w Class-A bias or at 5w Class-A, the 100w Class-A bias will ALWAYS!! sound better. Unless you are listening to 110db horns
Just to add to the end of that.
"Unless you are listening to >110db horns, then they will sound the same" because it only take 5w to get >110db horns going.

Cheers George