Hi again , I purchased a Yamaha sw-4 subwoofer on EBay. It has a left & right input on it . I wish to just use the sub with my Yamaha receiver but I don't know if it is possible or not? I use my system for only music listening and being dumb in these things I thought it was going to have a single push on type plug that I have on a Sony sub. Please if anyone could help me to figure this out I would so appreciate it .