Class A Power in A/B amplifiers?

It's the amp you don't see coming that blindsides you. ;)


That's just the honeymoon period.

My Krell K-300i has Class A for the first 90 of 150 at 8 Ohm.
My CODA #8 Version 1 is the first 18

abraxalito

George - yep, and the old torch bearer is yapping at my heels! Eeeek!

Yeah I got bored over at the other place, much more fun over here, for breaks giving **** to the snake oilers and voodooist like fusers, etc etc.
That sort of snake oil stuff is kept under control over there, so there no real dog fight action.
But I must admit it’s starting to become chronic here, as too many can see 10000’s% of profit selling re-badged 10cent fuses for >$150+ and having no overheads doing it!

Cheers George

It’s possible. You can get fairly close to full Class A performance with A-B, but may be limited by a slight lack of foundation to the sound. When people say class A is smooth, sweet, or well-rounded, those are subjective opinions. 

The conduction angle of class A is 360 degrees. Power hungry but with maximum performance.

There really is no such class as Class AB, it is used to describe the mode of operation when a Class A amp hits a low impedance and one of the pairs of output transistors stops conducting.

This statement is false. Class AB is defined as any push-pull amplifier which is class A at lower power (which is done to prevent artifacts at the zero crossing point) and class B at higher power. The *amount* of class A power is undefined.
Types of amplifier class:
Class A1, A2 and A3 (the latter recently develeped)
Class AB (which includes class AB1 and AB2)Class B
Class C (only used in RF power amplifiers)
Class D (doesn’t refer to digital; ’D’ was simply the next letter- the first commercial class D amps were made in the 1960s)
Class E (switching RF amplifier)
Class F (harmonically tuned RF amplifier)
Class G (modified A or AB amp; IIRC first used by Hitachi)
and on and on...