I don't have or want, a gaming headset but, use a Fiio E10k and the Shure SRH1540s that used to be my main music listening headphones. With these, Elder Scrolls Online sounds pretty good. A while ago, just because I could, I tried playing the sound through my Pathos Converto Mk2 and Focal Elegias and, was very surprised at just how much better it sounded, both in terms of clarity and detail. I didn't expect game sound to have that much to give. With that in mind I'm sure the Audeze LCD-GX has much potential but, also that it won't be fully realised if you want to use the mic, as you won't be able to connect to a high quality headphone amp/DAC good enough to do it justice.