High end Class D amps?

I THINK the tubes in PSA M1200s are specific. Not sure what the availability of other brands would be for rolling. 


I have owned many different class D amps for over a decade. A few I would say would have benefited from a romantic tube somewhere in the system, BUT, D has gotten much better, especially in the high freqs, to where, IMHO, changing cables would be the better option. The Cable Company would be a good source to try a variety of cables


I have a Tweakaudio EVS 1200, which uses the same IcePower AS1200 modules as PS Audio M1200, but are highly tweaked by Tweakaudio. No tubes anywhere in my system, and it's very detailed without being edgy


hth

@akgwhiz, I own a Rogue Medusa and rolling tubes makes a moderate but noticeable difference in tone, and extension at the extremes, I have a pair of Mazda 12AU7s in mine.

They’re just 12AU7’s.

AVM use unique tubes in their integrated and power amps.

Thanks for adding your experiences with D amps, specifically hybrids which hold my interest.  I have a Sphinx integrated now and have 2 sets of tubes on the way to roll (including the Mazdas...).  One thing I failed to mention, concerning auditions, is that I live in Anchorage AK.  There is ONE store in town that has ONE Primaluna  amp on the floor.  Seattle is over 2000 mi away.  Unless Best Buy counts!  Sure, some shipping back and forth possible but likely a few hundred $ per pop in the returned case as many vendors treat us as NOT continental USA.  Trying real hard to wittle down to a few lines/implementations.   So far as I can tell,  every line mentioned using tubes is using them as input buffers.  Only Rogue is doing (apparently) it different in their TubeD models by putting them "within" the Hypex module.  No EE here, but was wondering if thats potentially a sonic step change from their previous buffer input style models like the Sphynx/Paroah.  OK, back to the thread.

Based on the photos of the inside of the Rogue “tubeD” amp, the amp uses a standard class D module with a proprietary tube input stage and a linear power supply.