PC → Topping D30Pro → Topping A30Pro → Fostex T50RP MK3 modded / Edifier S2000Pro
HTPC → Audio-GD NFB-11.38 → Fostex T50RP MK3 modded / Sennheiser Game Zero (terrible headset)
I don't need to do a controlled double blind test, I can tell you right now I will not hear a difference between the Topping D30Pro and Audio-GD NFB-11.38