[citation][nom]abottig[/nom]This thing will undoubtedly suck. Anything with a mic attached to it will have shit sound quality when compared to a pair of open phones without a mic.If you want great sound quality, stick with a pair of actual headphones. If you want surround(5.1), you'll need to also invest in a headphone amplifier with Dolby Headphopne.The BEST way to achieve this is with the Sennnheiser HD595($140, Amazon) and an Astro Mixamp($150 AstroGaming.com).The HD595 is ranked the 15th best pair of phones overall on Headfi.org, but are priced much lower than the other top phones. When attached to the Mixamp, the sound is out of this world, plus you have the option to enable 5.1 surround for all of your games. You can also use the Mixamp to hook up your new 5.1 headset to a 360 or PS3.If you really want a mic, you can buy a $10 Zalman mic that attaches directly to your phones. For ~$300 total, you get an audio solution that will rock the shit out of any "gaming headset" out there. ...Oh, and don't even get me started on the Dr. Dre "headphones"... Ugh...[/citation]
I actually had a pair of Altec Lansing headphones with mic attached, and they were close to sound quality of 200+ headphones. I had a couple pair, so I was about to compare, and, for $20, they were pretty damn amazing.
As for 7.1 for headphones, I haven't been able to hear them yet. Do I think it makes much sense? Not really. I've heard 5.1s, and they haven't impressed me. Gimmick? No. I'm probably not playing the types of games that utilize them. I Play L4D, but, a GOOD set of headphones seems to do just as well, tbh.