Hello Guys,
I couldn't help but spread the news. Almost ordered an internal sound card, Asus Xonar STX, but decided for an External DAC instead. I called Emotiva and they sold me a factory return XDA-1 for $219 shipped plus an Emotiva Optical cable for $16.
Now my system consists of
AudioEngine A5's
Onix X-Sub
Emotiva XDA-1
playing off Foobar2000 media player (this this is awesome, noticeably better than iTunes playback)
Thanks to the suggestion of a forum member I have found Rythmik Subwoofers.
I called Rythmik and they have a F12SE set aside for me. My setup will be very nice within a few months.