Class D amps

There are class T(TriPath) that I personally prefer over the class D.
Being a studio tech hobbyist, got used to clinical and clean sound to evaluate a recording quality. Learned to appreciate Sunfire class T amps for these abilities of thin details, instrument separation, speed and muscle power.
Amps such as W4S have high enough impedance to be driven by any tube preamp with ease. I would though recommend to use fully balanced tube preamps.

No, didn't come out of a "coma." I am new to audigon. I have only seen brief mention of Class D amps but never did any lengthy research.

I'd suggest doing a search before asking questions.

No reason to beat up Nordic, we should welcome newcomers to the forum. Two comments on postings so far:

(1) Class "T" is really a class "D" amp. Tripath was one manufacturer of chips for the technology, and ARC called their amp a class "T" simply because they used the Tripath chip for their 150.2, 300.2, and 150M amplifiers. When Tripath went bankrupt and the chips were no longer available, ARC discontinued those models. The new ARC class D amplifiers, their "DS" series, use in-house developed chips, so the class "T" designation no longer exists.

(2) As was mentioned earlier, the combination of tube preamp and class D amp is primarily a matter of synergy. In my case I use all ARC components, and, at least to my ears, the combination of an LS-17 tube pre feeding a class D 150.2 and Maggie 1.6QR speakers, sounds very good. Of course, ARC components are made to mate well with each other.