How do Digital Amps Mfrs. compare in sound?


I am so excited about all the reviews of various digital amps out there. I just know this is the future of audio because the value is just too irresistable.

But, there are so many companies out there: PS Audio, Bel Canto, NeForce, Wyred, Spectron, etc just to name a few. To compound the issue(s), the modding companies like Cullen Circuits are upgrading and modifying digital amps. So are there differences between these companies products' sound or does digital equipment sound homogenous? Where does the biggest "bang-for-the-buck" lie when it comes to digital amps? Has anyone directly compared any of these digital amps to each other?
128x128condocondor
I use the Bel Canto 300 integrated amp (primarily with Sonus Faber Cremonas) and would observe that the amp is clean, powerful, and otherwise unremarkable. I have observed no real issues with the treble, but I've definitely heard more "texture" out of these speakers as well as better imaging. However, the better performance came in a different room, so I can hardly pin these issues on the amp with any confidence. If you need high output at reasonable cost and your speakers do not present an exotic load, I suspect that switching amps are a good solution. If you have more funds on hand, don't need the power, or have quirky speakers - proceed with some caution.

Marty
Marty, the good news is that John Stronczer's designs have evolved quite dramatically from the BC 300. . . you'd be amazed. . . I definitely was so, last night, with the $6K BC R1000 Mk.2 having broken the 400 hour mark.

Stanwal, have you considered quoting a little less 'old trombones', and relying on your ears a little more? If after that you still do not enjoy some of the top flight switching amps we are discussing on some of these threads, you will at least be speaking out of personal experience, rather than nostalging over the anachronistic pontifications of some old anchoret whose better times have long come and gone.
I know 2 years 40 years whats the difference,come to think of it that's just it we do use our ears.
Stanwal said this and much, much more:
""Not a single master of analogue power amplifier engineering has turned to Class D. Shouldn't one know this, and, ask 'Why?’
By their nature, electronic engineers are usually eager to "migrate into the future technology"."

You spout these things as if you have some special knowledge, or, perhaps, thinking that if you say them with a deep enough voice and authoritative enough delivery then people will believe you. Actually you weaken your overall arguement with such drivel. Kijanki mentioned Rowland and there are others.

If anything, my guess is that a very large proportion of designers stick with what they know and avoid migration into future technology. Othewise, how can you explain the overflow of SET tube amps on the market today? That's only my assumption, but I think that resistance to change is highly prevelant, including among posters here at A'gon.

Dave
I have found through experimenting with just one amp, the H20, that it can sound like anything from bad to terrific. They take on the personality of the preamp, wires, speakers and source.

I solved the preamp problem when I purchased the H2O's stable mate, the Fire preamp. That helped enormously. Preamps are terrible coloring agents. The Fire is as neutral as it gets.

Then, through experimentation, again, I solved the wire problem by making my own naked ribbon SCs.

The speakers are Apogee Scintillas. These speakers can sound like anything too. They respond gratefully with every positive change to my system.

The source is more important than can be imagined. The old adage, "crap in, crap out," is frightfully true. My H2O modified Audio Note DAC is a thrilling addition. Here is what a neighbor wrote me recently. It supports my notion how system support means everything. He brought a CD player that he liked to my place, and found on this revealing system it was grainy, and bright. It didn't fail as bad as another visiting SACD 999 Modright player did.

"What many of the anti-ICE amp people don't understand is the amps (H2O) are like Apogees, very neutral. If it dosen't sound right, too harsh or bright, add tubes. IMO (Apogees) don't have that problem, but CD decks, preamps.. amps, do. Henry's amp OTOH are, from all the reviews I've read, much like many Damps, have such a "black" background, (no noise) they show off everything."

So, whenever I read the same old criticisms, like the publication quote above," Poor treble seems a feature of Class D amplification," I have a laugh every time. For one thing all publications depend on advertising for their existence. Another thing is they do not care to find complimentary components, choosing to use their usual review system. But, more importantly, countless class D systems prove it is a fib,"