ok thanks I noticed now that the sub doesn't turn on right away, it takes some time, it might just be me. question though, do I need to adjust the x-over on the receiver from the original 160hz to the 80hz that I put it at now, since I don't have to worry about anything is this still something I need to leave alone at the default 160hz? please let me know, thanks all for your input and for helping a noob.