I don't have a 5.1 or a 4.1 system. I've got the Altec Lansing ACS-45 2.1 system. Not bad speakers for what I do. When I play a game such as CS where sound is extremely important, I use my Panasonic RP-HT1000 headphones that I got for about $50 two years ago. Otherwise, I just use the speakers.