Class D ICEpower 1200as2 vs. Purifi 1ET7040SA amplifiers

I have been using class D for years now: Jeff Rowland, Bel Canto, LSA Voyager, and settled on two AGD Tempo stereo amps to bi-amp. Very pleased with AGD fed by a Backert Labs Rhythm line stage. 

I believe the Rowlands were ICE, but unfortunately I used them bridged which was not their best.

The Bel Canto 600 monos were very rolled off from the upper mids to the hi frequencies. Kind of a lifeless presentation.

The Voyager (GaN) is surprisingly good for its price.

The AGDs (also GaN) are great all around, smooth, dynamic, neutral, resolving. Love them.

I have a pair of ESLabs DX-S4 which I've been happily using for over 5 years, although one is broken due to a mouse pissing on the board when I had the top off! I'm using one in stereo mode to drive my Maggie 1.7i's, and it sounds really good. I've compared it with several other well known, high class amps, Class A/B and A, and it sounds better than amps costing several times the price of the ESLabs which when they were new, were about £1750 each. They're probably 15 years old now, but still sound great. ES actually call them Class T, as they use a Tripath module to drive two pairs of MosFets - one pair per channel, at 180w into 8Ω, 300 into 4Ω and 200w into 2Ω. In bridged mode it gives 500w into 8Ω using all four output devices, and double the current.

Ignore people who say Class D is rubbish, as they've probably not even heard any!

I would suggest trying one of the Axiom Audio ADA series amps. The have amazing amounts of headroom and are very neutral, detailed and open sounding with none of the typical Class D harshness. They use a massive transformer and a lot of storage capacitance. I believe they have a 30 day in home trial. I am using a 4 channel one in a tri-amp set up and love it. They do not use the ICE chips, they use their own patented set up.

I seriously doubt PSAs M1200s are using the 1200 AS2s, most likely based on the 1200 AS1s

Correct.

But it's not just a standard AS1s.  According to reports it was modified by PS Audio (with IcePower guidance)  to marry it to a tube input stage, for better or worse. 

@yxcbandit I believe the "typical Class D harshness" is gone by now.