Hi,
So I've recently built a new PC and chose the Rampage V extreme as the board to use, one of the reasons was for the audio features. I was previously using an Astro a40 and mixamp over optical with Dolby Live for 7.1 surround sound which was great and I never had any issues with it but the headband recently broke so I purchased some new AKG K702 Headphones to go with the new PC.
Now the issue I'm having is that the surround sound just doesn't sound at all right in any game, I've tried playing with literally every setting in SupremeFX and just can't get it sounding good. For example if there is a sound directly behind me its ridiculously quiet then I turn slightly and it becomes stupidly loud and sounds like its coming from right next to me. There also seems to be this weird echo effect a lot of the time and I've no idea why. The headphones sound amazing for everything else so they can't be the issue, it just seems to be with the virtual surround sound or something.
These are all my current settings -
http://imgur.com/a/lnIH7