Re: A vs AB. The difference is the fundamental mode of operation with different distortion characteristics. Class A amps will have both odd and even-order harm

Re: A vs AB. The difference is the fundamental mode of operation with different distortion characteristics. Class A amps will have both odd and even-order harmonics but class AB will be mostly even-order. That is both an audible and and electronically quantifiable difference. If you are talking sound reproduction then A vs AB is insignificant because you only see the difference when the amplifier starts distorting. If you are a guitar player who drives an amp to distortion as a matter of course this difference is germane.