This seems to be an 'advanced' topic so I hope this is the appropriate section to post in. I want to calculate the impedence of my speaker wires. My front stage, (left, center, right) is 12 gauge, 2 conductor cables all 9 feet long. And for my surrounds I'm running 16 gauge, 2 conductor, at 30 feet long per speaker. I'm just curious as to what the difference in impedence of my front and rears is.