ive just received the xr-55 today and a 10 inch jbl sub from j&rs today and im running my speakers i use for my tv until thursday when my x-ls come. currently from my x-fi ive got the standard size thing(headphone jack) and into my reciever ive got red and white rca cables and its analog. wonder if theres any way i can get digital out into my receiver? maybe from the fli jack or something.