The audio engineer here let me take them home last night.
Hated them.
I ran them through my RKV and used my NAD 541.
Bloated, no detail, crappy closed headphone. Put on my Senn 600s... night and day.
A lot of guys here think they're pretty good. I'm threatening them with bringing in my gear so they can get a different opinion.
The Ultras would probably benefit with a better amp... but they still were bassy.