Edit: nevermind XD
Edited by daleb - 8/1/13 at 1:31pm
They are my hands down favorite from all I have tried in their price range.
I personally think a safer bet would be the new flat headband K702 and order some memory foam pads from AKG. It all depends, however, on what your sound preference is.
For under $300 the X1 and K702/Q701 with memory pads are my top two recommendations for gaming...
The mixamp isn't really much of an amp at all. The main use for it is Dolby. If you're getting a high end headphone, you usually need a secondary amp to use it at its full potential.