Hi!! My current setup is: Radeon hd6770 graphics card connected to PC Monitor(full hd LG) via hdmi cable. My Sr60 are connected to PC Monitor. Spec. of video card: Integrated HD audio controller Output protected high bit rate 7.1 channel surround sound over HDMI or DisplayPort with no additional cables required Supports AC-3, AAC, Dolby TrueHD and DTS Master Audio formats I was thinking about upgrade for my headphones, but i have no idea if buying for example Audiotrak Prodigy Cube Soundcard will be any improvement over current setup i have.