I tried expanding the picture of the control panel so that I could see all the connections, but the resolution wasn't very good. Do you need a "Y" connector, double male, to feed two inputs from your subwoofer receiver output? I couldn't really tell.
The Rat.
M80s, VP-150, QS8s,
SVS PC 20-39+, OPPO,
Onkyo 703s, Harmony 880
Sony 60" SXRD HDTV