How do Digital Amps Mfrs. compare in sound?

Anyone try the panasonic XR series? I'm using the panasonic XR 57 with some mirage OM10's and I am impressed

Nospam is right in my opinion. ASP modules cannot compete with a very good analog power supply. What is the advantage of introducing a digital power supply into an analog amp? The answer is, to lessen the cost of production by the amp builder.

The HF from my speakers are silky sweet. It never brings attention to itself.

I have owned the CIA UcD D200s and have borrowed a Rotel ICE amp for a while, but these are both out-performed by the Digital Amp Company's Cherry and DAC4800. DAC uses proprietary ClassD guts - Not UcD or ICE.
Disclaimer - I know the DAC designer so take my comments as you will, but it won't hurt to check them out.
-Mike

Magfan said"

"All amps run off rectified AC with the exception of stuff like the Emitter and some preamps, which are powered by banks of batteries. The purity of pure battery power is tough to argue with."

Actually, the Power Factor Correction module converts AC to DC in the 312, Continuum 500 and most other current prodcution units that are used in connection with the outboard PC1 PFC module.

When I asked Jeff Rowland if the conversion to DC provided the Continuum 500 with the same benefits as battery power (removal of AC noise) he said, "exactly." Beyond that, all I know is the Continuum 500 is, by far, the best integrated amp I've heard for powering dynamic speakers like my Vienna Acoustics.

Dave

Muralman -

"What is the advantage of introducing a digital power supply into an analog amp?"

First of all it's not digital supply - it is as analog as class D. In fact IT IS class D (class D was invented when designers of SMPS were demonstrating that it has such fast response that it can even play music.

Advantages are few: It is line and load regulated (while linear power supply is not) and quieter (50kHz is much easier to filter out than 120Hz). Just take as an example Jeff Rowland's Capri linestage - it uses SMPS instead of linear power supply (that would be small and inexpensive) and Jeff Rowland is not a "noisy" guy (he used batteries in preamps before). Don't be fooled by size of SMPS because 2" in diameter torroidal transformer can pass as much power at 50kHz as huge 10" torroidal transformer at 60Hz.

You made already one step accepting class D. Make another one - it is the same thing.