My never ending quest for the perfect surround sound for gaming, and checking video reviews giving the GSX high praise, led me to buy this thing. I say "thing", because of all the audio devices I've had over the years, this amplifier is the most dissapointing. I connected the GSX easily. Plug and play. No drivers etc. That was the only good thing I can say about it. Very easy to use. The surround sound? I used my ATH AG1X headphones with it, and the surround effect was more reverb than anything else. No software to allow EQ etc. tweaks. You get what Sennheiser gives you. At $300 cdn.,it was an expensive waste, in my opinion. I went back to my Soundblaster X7, ATH AG1X headphones, selected SBX in X7 control, and that's it. The X7 with the ATH headphones, have given me the best and most immersive audio gaming experience I've had so far. Will I try the next new thing? More than likely, but I will never put as much trust in the "reviewers" again. All this of course, is just my opinion. I'm no audio pro, and for sure I'm no pro "reviewer". I think I better start paying more attention to our own Guru audio guys.