Michael, the facts of audio technology, which would be confirmed in a properly controlled blind listening test, are that there's no audible difference in either the quality or quantity of power available from those three amplifiers.
I'm not saying you are right or wrong, but how did you come to this conclusion based on the information given by the OP or the specifications given by the manufacturers?
Wouldn't the design be the largest factor? A v.s. A/B?
not to derail the conversation from Bacon.... mmm...
Sure. Amps are pretty complex devices and there is more to amp than it's power capabilities. You can bet that different amps are not designed exactly the same with the exact same frequency response, input impedance, output impedance, crosstalk, noise floor, distortion etc. These are just a few things that can differentiate the capabilities of one amp from another.
Amps may not behave the same at high power demands either. The Axiom Class D amp for example was able to deliver instantaneous current into any one or combination of its channels when needed.
