We went with the creative solution for gaming because we found that for an audiophile headphone to really stand out a little bit of DSP goes a long way. You can use the headphone/mic on any system, but the Creative has gaming DSP functions work really well for enhancing positioning cues like voices or footsteps, and the hardware EQ works really well for games that are mixed too hot. ETHER C has really good attributes for DSP, the distortion is very low and there are no time domain issues, so EQ and other effects very effective.
With this setup you flip on the DSP (SBX Creative Calls it) for gaming, and go direct mode or use EQ without other gaming effects for audio. You can save named DSP presets so you can preset EQ and audio effects for many scenarios, for games and music, even specific games.
If you use audiophile DAC/Amps you have to find a way to modify the system audio to get the enhanced gaming effects or EQ, which is trickier, and for consoles not viable. Given that the X7 LE has very good sound for it's price and also allows for op amp rolling, and the gaming features work really well with ETHER C so this seemed a logical pairing to make audiophile gaming easy for people. Is it the only solution? No, but it's great and it's convenient. For strictly purist audiophile playback most people who own an ETHER C will have higher end gear anyhow, so this is a complementary system to them.
I've had a lot of fun working on this, it got me back into gaming after 20 years, and to me the immersion was really awesome. Gamers who heard the rig at CES really liked the immersion and positioning, mostly saying they'd not heard anything like it before.
Hopefully a few gamers who tried Witcher 3 with us at CES will chime in about their perceptions. Warren and Stillhart checked it out, so maybe we can get some comments from them...