I have the Polk RM6800 system........I received from Circuit City, with a free Onkyo TX-LR552 receiver. The Receiver has a hook up for the sub, that is a small outlet-looks to be stereo plug size, however the sub has no mate for it. The instructions said the prefered hook up for sub is on the speaker in connections, then hook front speakers to speaker out connections. With this set-up, I don't believe sub is putting out anything. Doing test of speakers, there is no clear sound just coming out of sub. Should I use a splitter stereo connector from receiver to Line In, red and white, or is the system indeed working ok? I really don't feel the Bass is coming through, as it's now wired.
Appreciate any help.