VlaudTheImpaler
tl;dr
I have a mainly headphone setup and it's a bit complicated.
For Solo Game or Movies:
Astro Mixamp + Sennheiser HD650/Fostex TH-X00
For Chatting while gaming:
Astro A40 + Mixamp
For Music:
Grace Design M9XX(DAC/Amp) + Sennheiser HD650/Fostex TH-X00
Or
Grace Design M9XX (DAC) + Modded Bottlehead Crack + Sennheiser HD650
I've tried many headphones even ones that are over $1000 and I would honestly take the Sennheiser HD650 over most of them.
Wait, I own an astro mixamp, how are you using that with your PC?