Distortion in power amplifiers, Part VI: the remaining distortions
The previous two chapters considered closely the distortion produced by amplifier output stages: a basically conventional but well designed Class-B amplifier with proper precautions taken against the various sources of nonlinearity can produce insignificant levels of distortion. That which is generated is mainly due to the difficulty of reducing high order crossover nonlinearities with negative feedback that has declining effectiveness with frequency. For 8 Ω loads this is the major source of distortion. For convenience, I have chosen to call such a device a blameless amplifier.
Distortion 3: quiescent current control
An optimised amplifier requires minimisation of output stage ...
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