Amplifier Class

• An Amplifier class refers to the method of biasing a circuit in order to obtain either the least distortion or the maximum efficiency.

• ClassA has no crossover distortion but is the least efficient method.

• ClassB has the greatest distortion but the greatest efficiency.

• ClassAB is a compromise between Classes A and B.

• Most 50 and 100 watt amps are in Class AB.

• ClassC is a non-linear class and is not used in audio