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I have no clue which speaker wires to go with...I know I want 12 gauge but I have no clue what the difference between 2 conductor and 4 conductor is....I know 4 conductor is 4 wires but what is it used for? By the way are the front speaker wires going to be same as rear speaker wires? Reason I asked is because we're going to have to go through attic and walls for the rears and want right kind of speaker wire. This is for the QS8 surrounds and I'm guessing its gonna need about 30 feet per side. So which wire would I need for that? I'm looking at partexpress and there is too many differnt types and kinds and its confusing me. Help!