Ah ok that makes sense.
Another thing I was wondering is this, I use a 1440P monitor which has to use Dual Link DVI, as the audio from the 290X would be passed through HDMI, does this mean I wouldn't get the audio anyway?
The TrueAudio engine handles all the sound data and then ships it off to your soundcard or through HDMI if you are using that as your main sound output but its up to you. Sound cards are not going to be absolete so if you want good quality audio buy a good sound card and TrueAudio will take care of all the 3d spatial calculation.. Atleast this is how i have understood it.