Just hooked up my Pinsound in my IJ with Endprodukt's .95 sounds and it is awesome. My backbox speakers (Pinball Pro) sound great but I am not getting any sound/bass out of my subwoofer. I bought the 2.1 cable and hooked the center cables directly into my external subwoofer and nothing. Not sure if it the mix or something up with my Pinsound... suggestions?