Wayne Parham Messages: 18784 Registered: January 2001
Illuminati (33rd Degree)
Certainly, there is merit in what you say. But it isn't like a good Class AB amp has a hard transition between positive and negative cycles. They are made to have a smooth transition where both devices are on through the zero crossing line. So I guess there are probably some amps of both types - Class A and Class AB - that are really good and some that are just mediocre. No feedback Class A (SET) amps will probably tend to have a little more 2nd harmonic distortion and a little less power. Class AB (PP) amps will have greater power and reduced second harmonics but may be susceptible to other artifacts. I can see relevance in both design types.
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