I like what @atmasphere said.
i'll add that the heat generated by the "AB amps that operate in class A until X wpc" is never enough to convince me that they are truly operating in "Class A mode".
My tube amps, class A, all the way.
Jerry
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 ?
I like what @atmasphere said. i'll add that the heat generated by the "AB amps that operate in class A until X wpc" is never enough to convince me that they are truly operating in "Class A mode". My tube amps, class A, all the way. Jerry |