The Paradigm PDR-10 is hooked to the Yamaha RXV800 via RCA cable, Sub-out to LFE in. All other speakers are set to small with Subwoofer chosen for the bass out put below 88Hz as I want the SW to handle the bass below 88Hz (as set in the Yammy). When calibrating the bass, I noticed that increasing the sub's volume AND increasing the cross-over also will increase the sound from the sub. I thought that the cross-over when controlled by the AVR sets the cross-over at 88Hz and doesn't allow for higher bass sounds to occur. My wiring is correct, but it is my belief that only moving the volume knob should change the sound output from the SW????