Ulrik: "what makes them special...at this price". A tough question!
Subjectively, I found these speakers to be very open, natural & fast in the mid+upper register, a quality I'd commonly attrubute to stators. The hi-frequency extension sounded far superior to my old stators, AS I HEARD them (my stats happened to be in the same room). The lower end was pleasing & very easily perceptible, crisp enough (I don't mean not harsh) to distinguish between plucking & a bow. The low bass I can't openly comment upon: the music was flowing (remember, I listen to classical for judging) so, harmonics must have been present. At least I wasn't "trying hard" to compensate for sounds that were not quite there -- or where too far into the b/ground when they shouldn't be -- as often happens in my case.
This all with a "normal" volume -- for me @ 15"/10" to the hr on the CAT -- i.e. on the low side for most of us, I suppose.
As to the price -- I can't judge. Take my words as a brief description from s/one who does NOT have these speakers, i.e. their only worth is in the spontaneity of my reactions to the sound -- if that. No golden ears here by any stretch of the imagination.
Others, who HAVE these or other Kharma models, can surely provide more and better details!