What I thought were the best settings I feel aren't good enough for me. Basically I'm finding guns sound too tinny and lack the thud. I know what an AK47 sounds like, and the Kaves make them sound like a paintball gun!
So I've messed around with Windows 7 sound settings, Creative Control Panel and the slider control that comes with the Kave. I've found the best results by setting Win7 sound volume to 90%, leave creative control panel as it is. Then on the slider controller set the sliders like this: center and front just under half way up, rear just over half way up and sub very close to the top. This was you get more bass in the guns and you can still hear around you.
I found that increasing the bass in Win7 demolished the spacial sounding of the Kaves and became distorted. The Creative Control panel doesnt seem to do anything? Its still not 100% perfect as I like, but maybe the headset needs "breaking in".