Well, I had a chance to spend about 1/2 hour this afternoon comparing the Stealth with the Rognir and the ZMF VC thanks to excellent
Kopfhörerboutique. All three headphones were being driven by a TT2/MScaler and a KHV-ESD.
Some brief impressions: the build on the Stealth is good. Cups feel good, pads comfortable, headband no issue. The aesthetics isn't my cup of tea, but that's a question of subjective taste. Each to their own.
The reproduction of music for me feels linear, quite natural, with no glaring peaks or problematic sections of the FR. Detail retrieval and imaging are very good. I can see the appeal for those looking for a natural headphone that isn't fatiguing but which is nevertheless very resolving.
However:
In short, as soon as I A/B'd the Stealth against my Rognir, I knew instantly that I'd be keeping the Rognir.
For me, the Stealth is a very good headphone, but against the Rognir I found it lacking in several respects. First, I didn't discern any technical aspects that topped the Rognir (if anything imaging, detail, and separation felt more precise and faster on the Rognir); second, the Stealth felt to me more congested and more closed, whereas I find the Rognir has a much airier presentation with better soundstage; finally, and above, all the Stealth was not engaging to me (and I think in terms of bass impact, the Rognir has a more visceral but controlled response). I actually found the Stealth a bit dry to be quite honest.
I've demoed a few DCA headphones before, and it seems the Stealth retains some of the feel of the earlier models. That will appeal to fans, but for those looking for a different take, I'm not sure they'll find it.
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I also threw in the ZMF VC in the mix for good measure. It's not really a fair comparison because the tuning is so different, but it easily held its own in terms of musicality and sheer engagement.
(As an aside: I also tried the Final Audio D8000 Pro and Susvara and was very impressed by both).
Proof of existence:
As I say, these are initial impressions. I was prepared in a way for the Stealth to top the Rognir, but didn't find this to be the case. I will be very curious to hear what
@DarginMahkum reports, as mine is only one opinion among others.