I believe I've tried the original and the stealth version. Headphones are never going to approach the staging size of speakers, without major DSP, so I don't quite follow the notion of being artificially big?
To be clear, the stage and imaging on Ananda is fine - I just like the 1000v1 better, and albeit I havent compared them directly, XS struck me as closer in terms of the sense of scale, than Ananda, which didn't give me that sense. But who knows- without a direct comparison I can't be certain of course. I just know it struck me quite immediately when I heard it.
As for the treble, it'll be interesting to see them all measured on the same rig, so they can be compared, because I'm not a big fan of just slapping more and more treble on to make it seem like they have more detail, as seems to have been the case with some of the stealth models, but lets see