Comments please on: NAD M23 vs c298 vs. other newer Class D


I'm interested in comments about the new-ish NAD M23 amp. It gets rave reviews on the Absolute Sound channel, by Doug Schneider and by the review at Sound Stage, and by others. Reviews describe not only an even response across frequencies, but layering of the soundstage (left-right and front-back) as well as excellent measurements. Some describe the sound as somewhat tube like in the mids and upper range, others as neutral, but all agree it does not have the harshness which typically characterized reports about earlier amps with this design.

I am not giving up my Pass XA 25, nor my QS Mono 60 tube amps. Or my ST-35 Dynaco. What I'm interested in is a another amp in the stable that can play nicely among different speakers (not all are as sensitive as my main 97db ones), and that might bring that snappy dynamic speed to the sound but without making me cringe from the highs.

If you have some opinion of this Eigentakt design, especially in comparisons to Atma-sphere's Class D or other amps with similar technologies inside, please comment. (PS Audio, Bel Canto, et al.)

If you have some opinion of the NAD M23 vs. the cheaper-but-still-Eigentakt NAD c298, I'm interested in that, too.

I'm NOT interested in super pricey amps. Say, above $8k

hilde45

Nice but kinda non-starter references for me. I may have missed a good example. 

@decooney At last year's AXPONA the class Ds were in a room with Magnaplanar, along with other manufacturers from Minnesota and Wisconsin.  We were also in the room with the Popori electrostatics. 

Would still like @atmasphere to address why he thinks there's a greater difference in sound between the Class D he's heard vs. tubes. See my comment below. It's an amazing claim to me, and I'm really interested in hearing it explained a bit. If you have time.

Would still like @atmasphere to address why he thinks there's a greater difference in sound between the Class D he's heard vs. tubes

@hilde45 What I said was IMO there is a bigger difference between various class D amps than you hear between various tube amps. IOW just because you heard one class D amp says nothing about how the next one might sound. 

@atmasphere Thank you. I've heard a large range of very very different tube amps, so your comment is really re-setting my expectations about how variable Class D can sound.