Article by InnerFidelity:
"First of all, I think we're still a few years away from really convincing 3D audio on headphones. There are still too many unknowns that need sorting through—personalized HRTFs; better headphone transducers; how to economically get all number crunching with head movement in order to commercialize it. To my mind, any solution out there right now will be largely incomplete, bleeding edge technologies. Previous to CES, that idea tainted my expectations; I really didn't think I'd hear anything really impressive when it came to 3D audio. I was wrong." Read it!