Do I esentially have a class A amp?

I don't design audio but it would be quite easy to design an amp that would measure THD=0.001% IMD=0.001% BW=500kHz and DF=1000 with absolutely horrible sound. I suspect that if you find amp like that (plenty of them in 70s) IT WILL have horrible sound (and they had). Again, spects have nothing to do with the sound. Even power spects are so vague that amp listed as one with higher power might actually play softer. Price of the amp might be even better indicator of quality than spects.

Czarivey, 22dB is not a deep feedback. Most of digital amps don't use deep NFB because there is no need for that. PWM is quite linear while output has by definition low impedance to start with (since one Mosfet is always conducting to low impedance point - GND or VCC).

^Maybe this proves your point:

http://www.stereophile.com/content/kr-enterprise-vt8000-mk-monoblock-power-amplifier-measurements

Then again, maybe not.

I believe that example is classic in its representing the "major" discrepancy in actual sound performance vs lab measurements. If one were to judge the Kron amplifier on measured results alone it would be deemed an undeniable failure. Michael Fremer found it to be one of the very best,convincing, captivating and "realistic" music reproducing amps he`s ever heard! Thanks Unsound, that entire review and followup was quite interesting.Based on listening the review was an utter rave.

^On the other hand, FWIW, though I've never heard the Krons (and the price(!) didn't exactly tempt me), when it came to other gear Fremer has opined about, well, let's just say we don't seem to share the same listening priorities.

Unsound,
That you may have different listening preferences from Fremer, me or someone else is understood and a given. One could look at our two systems and conclude we likely hear things very differently and that`s perfectly ok in this subjective realm.

Given the very poor lab testing of the Kron you`d think no way could anyone find such an amplifier to sound even remotely decent,not to mention "captivating and among the very best".