As an electronics engineer, I ditto Sean. There are few only class A amps out there and virtually none will do 100W in class A. The problem is the BJT saturation currents on the load line. The higher the bias, the smaller the swing allowable and hence the sooner the need to go class B, otherwise your THD goes up several hundred percent. Class B is generally twice as efficient as class A so heats the room half as much.
Capacity on the other hand, has very little to do with class circuit topology. It is dependant on number of BJTs handling current and their ratings. Class B has better current gain than class A but with the right transistors you can do the opposite. Take care. Arthur
Capacity on the other hand, has very little to do with class circuit topology. It is dependant on number of BJTs handling current and their ratings. Class B has better current gain than class A but with the right transistors you can do the opposite. Take care. Arthur