How do Digital Amps Mfrs. compare in sound?

Condocondor, I have no direct experience with the Bel Canto S500 stereo. Just looked at:
http://belcantodesign.com/new2008.html
By reading between the lines, it seems that the S500 may lack the input AC current rectification circuit of the Ref 1000 Mk.2 and Ref 500 Mk.2. I can only venture to guess that in the end the S500 may sound slightly less refined than its mono brothers. Yet, without direct experience, my guess has only the negligible value of the electrons you see on the screen to paint it. G.

The two that come to mind that offer UCD is Channel Island (D-200) and Kharma (MP150). The Kharma is a little more money then the CI. You can also go to hypex.nl, order the parts and build one yourself. I have a pair of custom UCD700 made to monos. These output 350 wpc into 8 ohms and 700 wpc into 4 ohms. I am now building another pair. My past amps are; Adcom, GAS Ampzilla, Dynaco ST-70 modded, Melos MAT-180 and Karan KA-i180.

I doubt very much that in two yrs ,that so much of an improvement has been made in dig. amps that all of a sudden they have improved that much if any and just how much of a improvement was made.2 years ago there was just as much hype as now.

Of course I empathize with you Coffeey. . . it is really sad how things have the habit of being. . . and even more of changing and evolving. . . in spite of our better doubts, nostalgia for the safety of olden days, or tradition abiding skepticism. . . It's like we don't matter any longer to this mad mad World. . . 'Fore long we'll have to get out of the house and listen by wesselves to what's good with this hobby. . . because even the old tried and true "I truly believe it therefore it's true" does not sound so hot any longer among far too many young whippersnappers. . . there's no more Religion no more, I tell ya.

My very last refuge is in the stern wisdom of one of the greatest sages of our Age:

"Just don't fall into the category of those whose minds, like concrete, are thoroughly mixed up and permanently set"
RODMAN99999

Regards, G.

Guidocorona, you're a piece of work. You hear angels don't you? I know the "Consciously Guided" when I hear it. I'm going to start calling you "YODA of HIFI." ;)