I'll check when I get back home. However, note that I've only got an Audinst HUD-MX1 at the moment for DAC/amp.
edit: I tried both videos and I'm not really feeling it. I can hear things left and right and the semi circle between left and right behind my head, but things in front come in through both ears more like as if inside my head.
Also, in the second video where you can hear people talking in the next room behind you. It sounds like they are right behind you, not quite so far as being in the next rooom where they are supposed to be.
Also, the wind in the Fallout 3 video doesn't really sound enveloping or realistic.