Oh, so in stereo mode doesn't it improve the '' virtualization '' or '' positioning'' of the audio? I though this '3D Audio' did works even on 2.0 about the positioning and with so, the immersivness of the audio.. I did not get it. They call it headtracking ok, but even 3d audio.. Mhh.. (I'm interest in 2.0 because on consoles i can't get 7.1 or more)
No, it's still stereo, the Mobius isn't doing any upmixing. The headtracking fixes the virtual speakers in place so when you move your head they don't move like an actual speaker.
There are other devices that can take an optical 5.1 signal from the ps4 and virtualize it for headphones.