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Hello everyone,

I am designing a circuit for audio amplifier.

I know there are classes for amplifiers. Class A(low efficiency and mid Q point), class B(better efficiency than class A and some distorted), Class AB(slightly distortion in compare to class B and more distortion than class A) and class C(highly distorted but efficient amplifier).

So which class should I use? Should I consider their efficiency or their operating points?

If I designed class A amplifier then it has low efficiency but mid Q-point then what will be audio output in this case? Will it be low sound due to low efficiency?

In short, what effect does the efficiency or distortion makes on output sound? What sound I will hear in both cases?

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