Class D amps that are superior to all or most?


Recently, I have heard about some Class D amps that may be close to the best there is regardless of class. Certainly, this technology has been in development for decades. The main issue has always been the switching power supply. In this regard, I have taken notice of AGD. They have created a whole new power supply that “switches” at a frequency 100 times the normal silicon based MOSFET. The designer uses a gallium nitride based PS. Interesting, it is enclosed in the KT88 glass envelope that sits on top of his amps. I am aware of two more pricey amps that seem to be also at the top- the Solution and the Merrill. There must be others that compete for the title. After my thread, “Is there a SS amp that can satisfy a SET guy?”, I am still on the quest.
Don’t want to spend $50K!
mglik
I had NAD M22 V2 which was built based on the Hypex Class D NC400s. My opinion is Class D is powerful, detail. But you will need a warm/musical/tube preamp to tame the high (easily bright on many tracks) and lossen the low (can be too tight and fast). Purifi is said to fix the glare on upper midrange/high which Hypex Ncore has. If it is true, I think the Purifi is where the affordable Class D era begins. The next generation of Class D is worth waiting for.
The gears I used to own and compared with the NAD M22V2 are:
Amp: Mcintosh MA6700, Mcintosh MC462, Accuphase E480, Rogue Magnum 3, Pass Labs XA25, Marantz 6006, Denon 1520AE.
Pre Anthem STR Preamp, Moon 390, Topping DX7 Pro/E30 (as both DAC and Pre).
DAC: Chord Qutest, Schiit Yggy Analog 2
Speakers: Revel M16, Revel Salon2, Tannoy Kensington GR, Klipsch Heresy 4, Monitor Audio Bronze 2, Jamo D590
The NAD class D is bad the M33 was unlistenable.

The AGD amps are on a different level.
But you will need a warm/musical/tube preamp to tame the high (easily bright on many tracks) and lossen the low (can be too tight and fast).
Sticking something in front will not solve the issue which is between the amp filter, the cable and the speakers.

Bass can never be too fast.

If the amp does not mate well with the speakers, change one.

Bass can never be too fast.

Or tight.
Very true, but to others don’t confuse fast and tight with being lean either. You can have it all if you work at it.
Cheers George
Installed a new Lyra Atlas SL today.
The performances jump out of the groves!
The AGD amps stay right up with the Lyra.
What was already amazing, is now killer!
Turning off the rig was incredibly difficult.
I am not interested in any other amp.