Heard the NC 250 yesterday powering Harbeth C7ES-3 XD, source was Uniti Atom HE. Room is familiar to me as many demos over the years. No power conditioning or high end power/signal/speaker cables used.
Very impressive indeed and my wife (who’s also into this - lucky me!) agreed. Overall impression was “natural”, and gladly lacking in the obvious Naim signature sound, which is why I got out of Naim gear a few years ago. We go to live unamplified opera/orchestral regularly so anything unnatural sticks out. We also listen to a lot of gear, and very little of it gets that praise. We played a variety of music. To our surprise this system shone on classical and opera in particular. Rock/pop was also fine, but not that over-emphasised edge/PRaT, which used to make these genres artificially exciting on older Naim gear, at the expense of natural acoustic genres. All in our opinion, of course. YMMV and all that.
Particularly struck with excellent soundstage precision and depth, another big improvement. Bass control and texture was excellent. There was no edge we could perceive and we listened for a couple of hours with no fatigue. In essence, this got my biggest accolade of first doing nothing wrong and then doing a lot right. This puts it immediately in the top 1-2% of gear I hear.
The physical design, in the flesh, is so much better than in photos. Great build quality and a decent aesthetic, purposeful but with a touch of refinement. Absolutely love Naim adding the XLR in-out on these units, and the new Standby power modes, even on the power amp. Honestly, as with sound quality, it is these touches with Naim coming more into line with the 21st Century that piqued our interest again. The fact that sound quality is also matured/evolved might well have us picking a bit of Naim kit soon.
Pricing. Uniti Atom HE is well priced, in my opinion. The NC 250, though… ouch… it’s a good thing it sounds great, because it should at that price/power. But Naim is a high end brand and none of them are reasonably priced. It does have some serious competition from other brands at that price, some of whom have more power on tap, but the XLRs finally do allow it to be a better proposition in terms of competitors, as it makes it more versatile and more likely to be used with other brands of source, as systems change.
This aside though, we could happily go with the above and not really want more in terms of musical enjoyment, it really was that good.
And the volume knob on the Atom HE really is a thing of beauty.