This is a very good thread, but just to clarify; Class A is a single-ended amplifier. Push-pull is class A/B (even though it is often described as class A). Do I understand it correctly?
CLASS A POWER RATINGS
In well designed SS class A power amps I was told that although power could increase to double in class AB mode from speaker demands of 8 ohms to 4 ohms, class A suffered to be cut in half.
For example a class A denominated amp rated at 50 watts class A into 8 ohms would double to 100 watts class AB into a 4 ohm load but only have 25 watts of class A power before switching to class AB.
But I've noticed of late claims of manufacturers stating their amps double their class A power as impedance demands are halved.
So is the explanation that technology has advanced ?
Showing 2 responses by sngreen
@charles1dad .. but class B operation is push/pull, not? Does not push/pull imply switching in between? |