I posted this on the A/V source forum but didn't want to take chances it wasn't a rcvr problem... I have a Pioneer 563A DVD player hooked into my Onkyo SR601 receiver with digital coax. My sub goes right to the receiver and the component video cables direct to the RPTV input 1. Didn't really notice it at first but I set everything up with my S&V cal disc and all seemed well. I do about 80/20 movies/music. When I played any CD I don't have any sound from the sub. Setup always worked OK and great with any DVD but not CDs. I went through the menus and setups on both the receiver and the DVD player but I'm stumped??? I used the rcvr set up but it doesn't have a DVD/music choice. I do have small selected on the rcvr and DVD menu, and the cross over set at 60 hz. (direct connection not variable). I found with the test disc in the DVD player I can adjust all my levels (on the rcvr) but when I use test tones generated by the rcvr alone I get NO sound from the sub. I've gone through all kinds of menus on the rcvr and the DVD using both manuals with no luck. I guess I'm missing something.