Craig, In class a operation,the output devices are constantly on.In a/b,the output devices turn on and off {generally causing "switching distortion".The pure class a operation usually draws more power due to the devices not cycling on/off.In my opinion,it sounds better,closer to analog.Digital is an on/off medium and I'm sure you have heard the complaints there.Some amps will provide class a operation to a certain power output,then slide a/b {IE:Pass Labs X series}.I hope this helped,I know I over-simplified the explanation..But.
Difference between Class a and a/b
Hi,
I have been reading alot about class a and class a/b biased amps, but I am not really clear on what the difference is. I understand that it has to do with circuit providing power through the entire cycle. But I was hoping that someone may be able to explain it in simpler terms.
Any help is greatly appreciated.
Thanks
Craig
I have been reading alot about class a and class a/b biased amps, but I am not really clear on what the difference is. I understand that it has to do with circuit providing power through the entire cycle. But I was hoping that someone may be able to explain it in simpler terms.
Any help is greatly appreciated.
Thanks
Craig