So i hook up my epic midi 125 http://www.axiomaudio.com/epicmidi_125main.html with my denon 2105 http://www.usa.denon.com/ProductDetails/451.asp. I use a monster THX Digital Coax cable http://www.monstercable.com/thx/productPageTHX.asp?pin=1599&LastPage=Digital%20Interconnects. I plug the cable in the Line IN from the sub to the Subwoofer jack in the receiver. I get nothing from the subwoofer. The little green light is on indicating power, but i get 0 sound. Am i using the wrong cable?