How do I connect my Onkyo subwoofer?

1:482:46ONKYO How-To Series: Connect Speakers - YouTubeYouTubeStart of suggested clipEnd of suggested clipUse the supply RCA cable to connect the subwoofer line to the receiver pre out now you may plug inMoreUse the supply RCA cable to connect the subwoofer line to the receiver pre out now you may plug in the receiver back in to adjust the subwoofer.

How do I connect my passive subwoofer to my Onkyo receiver?

You can connect a passive subwoofer to an AV receiver by treating it as a loudspeaker and linking the subwoofer directly to your AV receiver via the speaker connectors. You can also power it with an external amplifier and treat it as a powered subwoofer that connects to the pre-out.

Can you connect a different subwoofer to a soundbar?

You cant add a standalone subwoofer to most soundbars. Its typically only possible when both the soundbar and the subwoofer are sold together and designed to natively connect to one another.