Describe ube sound vs solid state

^ I got that and meant the same thing. "Typical speakers".

Just because an amplifier does not double power into half the impedance does not mean it cannot drive such a speaker perfectly well, without frequency response variation. Doubling power is not a requirement for that.

Ralph when you do see a spec on an amplifier that does double power as resistance gets lower is that a sign of a better design?

Rleff,
It's not sign of better design. It's sign of deep global nfb.

"It's sign of deep global nfb."

Oh no, not that!

Just give it a listen. If it sounds good, its a pretty good design. Bad ones don't sound good. its funny how that works.

Correct designs could be good, bad either with or without global nfb.