Hi Everyone, I have a Kenwood VR6070 receiver and am adding a subwoofer (Yamaha YST SW-100) to my system. From what I understand the VR6070 allows me the option to use either it's "last" channel as either a third surround rear channel or as a subwoofer channel, but apparently not both. Assuming this is correct (let me know if it's not) and I want rear center, can I hook up my subwoofer through the front l/r speaker outputs? And, if I don't want a rear center, is it better to use the RCA subwoofer out or the front l/r speaker outputs? Thanks.