Here's the deal. I'm going to be getting a new HT setup, consisting of the Denon 3803 and axiom speakers. I plan on getting the QS8's for my surrounds. Right now in my HT room I'm using a 2 year old Sony HTIB with factory speaker wires. I have run the wires for my surrounds along the cracks off the walls so you could barely see them. When I get my new setup, should I go through the process of replacing the wires for the surround? I can't really tell but they look to be at least 18 gauge.