New Class D amplifiers


Hello. I'm very interested in getting your opinion on the newer Class D amplifiers.  There has been a couple of very positive reviews (by Guttenberg) of the Bel Canto C6i and NAD M23.  These, and perhaps some others are offering new technology that significantly lower the class D noise level and other drawbacks.    

I currently use a Class A amp, Pass Labs INT-25 (with Dynaudio Heritage Special speakers) which has a wonderful sound. But I am transitioning to another location, and due to using Roon primarily I find that this system stays on most of the day.  Due to heat and power usage of Class A amplifiers, I'm interested in translating to Class D if I find something comparable.

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Do I really need to explain the difference between subjective preferences and objective performance again?

There should be no difference at all! If you think there is, then you are convinced that we can't make the measurements for everything we hear (which, since about the early 1990s, we can) and also that the human perceptual rules that are shared by everyone on the planet are of no consequence, making things like deciBels irrelevant.

Of course I've found that both the objectivist and subjectivist camps don't like this heretical view. I subscribe to Daniel von Reklinghausen's take on the matter of measurement and what we hear. 

Obviously anecdote isn't reliable, but it can provide data points over time, especially if everyone's anecdote, independently of one another, describes the same thing.

Similarly, the guys that only look at measurements are notorious for their bias confirmation, and their striking ability to assemble dreadful sounding systems.

Neither side is right; both suffer bias confirmation.

@tweak1 With XLR inputs, you may try all four possible positions for the back switches and see if this affects SQ

Yes, I AM convinced that we cannot measure everything we hear......in fact, most things we hear cannot.....at all....be measured. All wires, direction of wires, all jacks, all fuses, all capacitors, all brands of solder, etc. into infinity sound different yet they do not measure any different. Just a few days ago I put a piece of cardboard underneath my streamer and it sounded better.......please measure that! The mods I just completed to the Peachtree GaN1 transformed the sound but will NOT in any way affect any measurement you can do. Our ears are way more sensitive to what things "sound like" than any scope or distortion measurement device. I just swapped two different 6 inch pieces of twisted wire on the digital input of the amp and you get a completely different sound.......this is everywhere.....every single thing you do has a sound. There is no such thing as a pure thing. This is why the first rule of tweaking is to eliminate as much of the signal path as possible......these new digital amps do just that.....of course, there will be better digital amps......most of us will have digtial amps within 10 years....this, I have no doubt about.

I have had Walter's Voyager Amp in my system for a couple weeks.

The sample was eventually sold to another audiophile with a great system.

I compared it to my Pass Labs INT25. The extra power did improve the bass

response. I think overall it is a great value. I may get a class D Ganfet for 

bi-amping.

I have heard the Aavik, Orchard, Atmas, Bel Cantos, LSA Class D sound.

If the Borresen people find it palatable, I can't imagine we are far from

seeing it everywhere. 

But for now I will stay with my friend Nelson.