Class D

And just because an amp uses tubes, doesn’t make it good. And just because an am is pure solid state doesn’t make it good.

To me the purest form of amplification "so far" to date with least colourations, lowest distortions, unrestricted dynamics, unrestricted current ability even into very low impedances, and for hard to drive speakers
Is high biased Class-A push pull direct coupled solid state amplifier, using complimentary bi-polar output devices with appropriate power supply/s and input/driver stage.
Guess what some of them are? Gryphon, Classic/Krells, Dan/Agostino, some Mark Levinsons etc etc etc.

Unfortunately, these are heavy, costly, and expensive to run.

Many say Class-D is there, I say no not yet, unlike the few here will like to have you believe.
And many others say also myself there are problems with it in the upper mids/highs.
Also it definitely can’t compete with the above into hard low impedance loads of many of speakers, no matter how many watts they have.

Cheers George

That's a lot of amplifiers with a lot of feedback there @georgehifi, just like Soulution.

Seems you are talking out both sides of your mouth and trying to eat someone else's cake at the same time.

Does it ever occur to you that there is absolutely no consistency in what you posts?

I have to say georgehifi according to you the only amps anyone should EVER own are Gryphon, “big” Krells, or D’Augostino, maybe a JC1 pair. It’s the same discussion, the same argument, the same bla, bla, bla. Sure you are a fan, those are some great designs, but get off it. They aren’t the end all be all, there are many, many excellent amps out there, a lot of which will drive just about anything. Given the lower sensitivity of speaker designs overall these days, premium designers do pretty well to design amps that do very well. Lots of opinion, not much substance here.

I have to say georgehifi according to you the only amps anyone should EVER own are Gryphon, “big” Krells, or D’Augostino, maybe a JC1 pair.

Lot more big BJT's than just those sunshine

At least your reading about some of them 😉
Must have something that tweaks your fancy 😘

Cheers George

Georgehifi whines about feedback in ClassD while idolizing solid state amps with tons of feedback.

Georgehifi idolizes Technics while ignoring they need to use DSP and variable delay to compensate for phase shift in their output filter.

Ignores circuit design requirements then faults performance.

Just dogmatic rambling at this point. The hole is dug too deep to be willing to admit error.