Best headphone for $300

i wanna get some new headphones to use when i play games and listen to music, my budget is $300, i dont need a headset since i am getting a seperate mic.

thanks for any suggestions

1)  if you have a good headphone amp this one

2)  ($499)

2.5) you can get the mdrx700 for ($119)

3) (149)

4) And lastly, not the best audio quality but with 7.1 audio and wireless  (299)