Hi there, this is my first home theater setup and I having a problem understanding what the correct way to hook up my sub and what cable to use. The back of the sub has a left and right RCA but between the labels and manual I'm not sure which cable to use (or if it even matters) I have a straight rca cable and a Y RCA cable and my receiver is a Yamaha RX-A1030 which has a single RCA preout for the sub connection. Does it matter which I use, any pros or cons between them? Thanks!