Just picked these up to replace my broken DITA IEMs, and they are quite the performer! I've been away from the audiophile community for a bit, just casually enjoying the music, but the Xelentos are good enough that I felt the need to give a brief write-up to praise these little guys.
Clear detailed mids and high end, plenty of clarity and sparkle with no sibilance to speak of. Low end is also very impressive, with solid sub and mid bass performance. Really no complaints other than the poorer than average isolation, and I could easily see how some people have fit issues with these though, the fit is pretty unique, and people with "elephant ears" might have a tough time with these. The fit is pretty shallow, so if you are used to a deep fit, these are probably not for you...
These are pretty much a standard U shaped signature rather than the V that people here seem to claim, I don't find any part of the mids lacking, but I could understand if the extreme spaciousness were to be mistaken for a certain airiness/lightness to the mids. Running these out of the Chord Mojo is an absolute pleasure, and I highly recommend the pairing. I am used to the DITA IEMs though, and some find those to have slightly laid back mids than average, but I think they're plenty present, even in more crowded tracks.
Honestly the market has become so saturated in the 1 and a half or so years I've been away, and with the average price of IEMs climbing higher and higher, I really didn't know what to expect for a $1000 earphone anymore. The $1000 mark used to be "summit-fi" territory (or really close), and now it feels like people treat it like a mid-fi kinda tier, when the performance is pretty much better than the flagships of old.
The Xelentos feel like what a flagship IEM needs to sound like, and I can't quite claim that the sound of a pair of 14 driver $2000 IEMs (which I actually demoed at the store I got the Xelentos) are better than these in any regard. When you pay more than $1000 dollars for any IEM at this point, I feel like it's just catering to personal tastes, and no pair is objectively better than another anymore... There's always been this "spend more, get more" kinda attitude in the audiophile world, and quite frankly I don't think, in this current era of technology, that sound/performance/stuff gets significantly better to warrant the insane prices offered.
Just my two cents.
TLDR; The Xelentos are great, they're as good as I feel anyone with normal hearing really needs to have without spending more than $1000.