How do Digital Amps Mfrs. compare in sound?

Guidocorona, I was referring to the attached digital power supply, as stated. The module is analog, as stated.

Apologies Mural. . . I do not know where is the 'attached digital' power supply and to what device you are referring.

I think that people are confusing swithcing with digital. There's nothing digital about a Class D amp.

You are correct Dave, it is also worth pointing out that a decision to deploy a switching power supply vs a toroidal one, at least in the rarified high end domain we are dealing with, has precious little to do with skimping on parts costs. While some engineers prefer to mate switching power conversion modules with traditional toroidal power supplies, other designers prefer the sound of their creations when matching ICEpower modules with switching supplies, integrated or otherwise. There are many perfectly valid ways to skin this particular audiophilic cat, and it is completely pointless to launch yet a new round of the trite juvenile game of "my PS's bigger'n yourn!" G.

ASP modules all have a built in miniature power supply that draws it's energy straight from the wall. That raises all kinds of distortion and phase anomalies that require back up fixes. Rowland has devised ways of addressing the problem. Good for him.