Questions re:  GaNfet technology vs other designs.

Too bad carver couldn't do this in production models, plus the two amps would probably still sound different with different speakers.

Presumably there is better measurement equipment today which would allow the "fine tuning" of the various amps I mentioned in a fashion that might? allow them to sound very similar??

@invalid ,

I quote,

No matter what speakers we used, every "difference" we thought we had isolated turned out to be there, in equal quantity, when we swapped amplifiers.

He probably could have and maybe just did most of his work with a resistive load adding in a set of speakers for verification. He wasn't going to give away all his secrets.

He did do things with his production models, but it would be good to question what are real sound difference, what is voicing, and what is marketing.

I would not be so quick to jump on the bandwagon

Bandwagon jumping?

I simply agree with Ralph’s succinct and clear explanation. I find it to be more on point and inline with the real world listening results people experience. Make no mistake, I appreciate your comment and perspective. I just find his more credible. That’s all. Good discussion.

Charles

You mean @atmasphere's unsubstantiated claim versus an effect (impedance impact on frequency response) that absolutely is undeniable. I find that most people make 0 correlation between listening results and the underlying cause so assigning cause to a result without knowing what it is does not lead to a valid conclusions. Bob Carver's challenge is a strong data point.