Audio Equalizer Software

I friend of mine has an HP laptop with beats Audio. The beats audio control panel includes a pretty decent equalizer and some other settings. I was wondering if there is a preferred audio program. I have a pair of Bose AE2's and I would like to play around with what they can do. If there is a program capable of mixing a digital surround like some of the usb headsets do that would be cool. I have the extra power to run it.

something like this may be of some use...

http://www.razerzone.com/surround