We just finished a new TV Room and wired in all the speakers. Until this week I didn't realize the wiring for the sub was 16 gauge speaker wire. I of course needed COAX cable. The placement of the sub is some 30ft from where the AVR and the rest of the components sit (inside a separate room).
So can I use the 16g speaker wire coming out of the wall as COAX? Assuming I solder an RCA plug to either end? Or am I hooped?