I almost didn't believe it myself until I held it today when they delivered it haha. So far, the Caiman admirably drive it, and I get some very nice warmish fatigue free sound out of this cans. I agree with all the review so far, including the negative ones. Though Imo, it also has upper mid lift that's done very very tastefully, just enough to make female vocal sounds sweet but not too overbearing, shouty or sibilance. Far cry from the day of AD900 lol.