I hate to crash the party but most people don't actually go out and listen to different headsets and headphones. Headsets are regarded by most people in the headphone community as being overpriced and of poor build quality. I have listened to a lot of different headphones setups everything from a cheap HD280 all the way up to a $5000 headphone only setup. I think I know my stuff but the people I'm going to quote have experience beyond mine.
These are all folks at head-fi.org the premiere source of all things headphones and their opinions on typical gaming headphones.
Steelseries Siberia or 4H
Obobskivich
The steelseries headsets aren't "horrible", but they're massively overpriced for what they offer
theres a number of higher fidelity options in the same $60-$100 price range that'll provide better performance with both gaming and music, if you'd even consider taking suggestions from someone who isn't a youtube celebrity
I'd suggest you look at the Sennheiser HD 555 or 280Pro (one is open, one is closed, afaik the siberia is semi-open, so if isolation isn't a large concern the 555 would probably be a better move) or Denon AH-D501k or D1001k (the 1001 will likely be a strech on your budget)
Chinesekiwi:
That would be wrong tbh.
That award would go to the Beyerdynamic MMX300 or if you really want to chew up cash:
(Purely gaming headsets, not standalone headphones):
Beyerdynamic MMX 300 Headset with Headzone 5.1 Gaming System
or
Astro A40 System
That said, standalone headphones and a clip-on mic = much much much better value than headsets.
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Just some food for thought, go check out the forums. Stop taking all their marketing and spending money on overpriced headsets. To be honest how many of you have actually gone out and tried out different headphones. This isn't a computer you can't just compare specs.
PewPew:
I have the AKG K701s and they are awesome. My amp broke though so im back to my audio technica's A500. I might sell everything.