Did you get the wall plug for the O2?
Sorry I forgot to mention that I'm using an a/c adapter from my router, so the amp is turned on with red light
and from my desktop, I see Odac in volume control area, but no sound~
Edit: A/c adapter from the router is 12v and 1amp. I'm not getting any sound from the amp, is it because the adapter isn't putting out enough power?
edit: I'm guessing that I'm not getting any sound because the adapter is probably ac to dc output? arg...
Edit: Problem was with the adapter
Thats what I was thinking..
How do I use the O2 portably?