No problem. I ran into that issue as well and forgot exactly how I fixed it. I am using a custom driver with my Titanium HD though, maybe that's why. You can find more info on it here:
http://www.hardwareheaven.com/pax-drivers/
It always made it better for me with cheaper headphones. But I found with headphones that have a huge soundstage, what it does is bring the sound closer which might actually be better for gaming.
Play a song with the X-Fi control panel open, and try disabling/enabling CMSS-3D during playback. If it's like mine, you should notice without CMSS (on headphone mode), the sound extends further back. With it on, it sacrifices some of the soundstage to make the sound more intimate to me, and give clearer mids.