Wow this a good view of the rear of the unit
On the right hand side, above the power cable, are the green, orange and black speaker output connections. This where i assume my would connect my Gigaworks system as it says audio outputs above the connection.
And the rest of the connections are audio inputs including the 3 optical connections on the bottom left of the unit.
So that means i can connect my pc and ps3 to the optical connections and output 5.1 sound to my speakers.
If i can do this, then its perfect. Im a happy guy