[QUOTE=Goit;2105319]I have an audigy2zs, will upgrading it to an M audio Revolution 5.1 improve the sound quality by a noticeable level?
I use a pair of Sennheiser HD555 headphones and use the card for music listening.[/QUOTE]
First off what kinda sounds around going to play through the soundcard?? There is a newer version X-FI from the company that makes audigy2zs. Maybe you could take a look at that as well. What kinda improvement in sound are you looking for game or entertainment also what kinda speaker setup are you using???