I just had a theater pre wired for 7.2 surround in a house we are building, and the wiring professional labeled the wires. The labels read: front, rear, side, sub front, sub rear, incoming, and source/projector. All of these are clear to me except 'incoming'. Is this another name for center, or is this something else I'm not thinking of (and perhaps the center wires are grouped with the front speakers)?
Thanks for the help!