Just got these 10 minutes ago! They a quite nice for the $299 price. Using my Mussete DAC and speaker taps from my Denon AVR, but have two tube amps I will be trying a little later.
Going through my test tracks now, and I made cable adapters so I can use my aftermarket Audeze cables, haven't tried the stock cable and probably won't. I believe in cable "rolling", to find personal preferences.
Sound is spacious, imaging and separation very good, bass tight and fast, very similar to my LCD 2.2. Bass right out of the box has a little less decay than the LCD, and HE-6, but it hits nice and hard. Detail is great, but good cables really make a difference there. More comfortable than both the LCD 2.2 and HE-6, much lighter weight!
I have DHC Fusion, Peptide Pure silver. Moon Black Dragon and Kimber Axios, all work with adapters on my HD800, HE-6, LCD 2.2 and M1060, so I am hearing these probably at their best, really no complaints against the other headphones so far.....they compete very well!
I don't like the MMCX connectors at all, with the weight of my aftermarket cables and adapter they can unsnap very easily. Another negative is the sharp edges on the grill covers.
These are certainly better than I expected, sound is clean and smooth, at least with the cable I am using now, but I need to do some burn in before commenting any further!
I think others are going to like them!