Hello all, I'm posting because I need help connecting a Gemini XTR-400 subwoofer to a Onkyo TX-SR504 (North American model). The subwoofer is powered so it should be connectible/readable by the a/v receiver. Right now I have a TRS connector going from the subwoofer input to a TRS to RCA converter, and then finally connecting into the a/v receiver subwoofer pre-out. I know that this must be incorrect, because no sound is being emitted from the subwoofer. I'm missing some connection back to the woofer from the receiver, or I connected the devices wrong. Even if I have the set-up correct, and the woofer was blown, wouldn't it still make some noise? Below is a diagram of the Onkyo TX-SR504 (North American model) hook-up panel with the subwoofer pre-out slot circled: [IMG]http://i241.photobucket.com/albums/ff290/ratinoff/subwoofer%20question/photo1.jpg?t=1218929834[/IMG] Below is a diagram of the XTR-400 hook-up panel with the inputs circles: [IMG]http://i241.photobucket.com/albums/ff290/ratinoff/subwoofer%20question/photo2.jpg?t=1218930665[/IMG] Any help on with this situation would be greatly appreciated. Thanks in advance.