I listen mostly to music, but I'm now setting up a home theatre. The rear speakers will be B&W Matrix 805s that should be bi-wired. The wire will go around the perimeter of the room, a length of about 30 feet or so for the farther speaker. Two runs of high quality single cable bi-wire for that length is just too expensive for me. I'm thinking about buying a roll of 14 gague 4-conductor in-wall wire from Parts Express (part no 100-768) and terminating it as bi-wire, using bananas to the speakers and spades to the amp. Is there any reason this would not work?