Took my HD 600s to the Christmas Eve family dinner this year and let everyone have a listen.
It was pretty noisy really loud at times, so not exactly good for auditioning open headphones. Nonetheless, everyone who tried them - my uncles and cousins, all of which are musicians - loved them. Lots of "awesome"s and the like, although no really specific details (presumably resulting from the noise level).
Then, my brother decided to rain on the parade... He's a quite good bass player and has spent at least a little time in small studios. He proceeded to inform me that he couldn't tell the difference between them and the Skullcandies that he's apparently used when listening to masters, without even listening to the HD 600s. Then he said that you could EQ out any differences between them...
At that point there's no hope. And I thought I was doing him a favor by lending him my old Polk Monitor 7 speakers this year. He tells me there's something wrong with one of them, too... Probably blew a tweeter with his frat friends at a party.
:Facepalm: