Doesn't the manual tell you what to do? Can you ask a CJ dealer, or email to the website? While I do not own this piece, nor run a 2-ch pre along with a receiver or pre/pro, I believe you connect your "audio" sources (CD, phono, etc) into the CJ, while your "video" sources (like DVD, DSS, etc) including the audio portion/connectors run into the receiver. Run your main pre-outs from the receiver into the CJ. Of course, the CJ outputs already go to the amps driving your mains. I agree with the above poster if your receiver does not have pre-outs for the main L/R channels. You might want another opinion or two confirming this before you try it, though. ;-)