multiple Speaker sets?

I am not (yet0 a programmer, so don't get mad at me if this is a stupid question, but is there any way to send the sound signal to more than one set of USB speakers? I just though, since i have my soundsticks and the speakers that came with the Cube, they are both USB, and I noticed when poking around the developer stuff that there is separate stuff for "Audio" and "USB Audio" and i figured it could be a good idea. I mean, adding the sound of the sphericle speakers could only help round out the sound from the soudsticks/isub, right? and they were both made by Harmon/Kardon. Just a thought.