ICEpower Digital Switching Amps?

Muralman1...From the picture I saw it does appear that the H20 power supply is, as you say "big enough to power a decent Class A solid state". But I still wonder why? The amp's high efficiency means that almost no power is wasted. And why does a transformer and four capacitors cost several thousand dollars? Maybe the ASP module power supply could be "fortified" by simple addition of capacitors. I will probably end up with an ICE amp to compare with my TriPath one, but you haven't sold me the H20 quite yet.

Justin_time...Thanks for a sensible discussion. I would really like to see a "white paper" with technical details on the various deficiencies of the ICE modules, and ways to correct them. In particular I am puzzled by the reported need for a robust and expensive power supply for circuitry that draws so little current. I will accept reports that such a power supply improves performance, but I really doubt that it is the current delivery capability per se that does the job, and I think that if the real reason is discovered a much simpler and cheaper solution can be found.

Ar_t...You said "An amp is really nothing more than a modulated power supply". Very true. In fact, long before digital audio amps were invented the manufacturer of an IEEE controlled bench DC power supply demonstrated the slew rate of his product at trade fairs by playing music through it! I'm told it sounded pretty good.

Ar_t...You said "The guys who are listening to 8 W SETs probably aren't going to be happy with them". Well, I read that many of those guys are all enthused about a little battery-powered TriPath-based digital amp that pumps out five mighty watts. Go figure.

Muralman1...Capacitors (or inductors) are ideal for filtering high frequency noise, and relatively small values do the job. All power supplies have some capacitance for this purpose. Lower frequency ripple, like 120 and 60 hz are easily tracked and eliminated by a regulated supply.

Actually, noise on the DC does not necessarily appear on the output signal. A feedback loop causes the output to match the input signal, eliminating errors such as PS noise. But the use of feedback is another whole argument.