If you want to sacrifice noise isolation and get more soundstage, you can get the Superlux HD668B.
If you want noise isolation, the Monoprice 8323 is a good option.
For the microphone, get the Zalman ZM-MIC1.
The ATH-M30x seems to be solid headphones too. I think you can't go wrong with it.
Hi, I have a weird (and noob) question. I'm looking for the PX22 for gaming AND guitar playing, but I don't know if I can do that. I want to connect the headset with its amp on the guitar's amplificator, being able to adjust the volume, treble, bass, etc.
Check this picture I made explaining...