I have a Denon 1604 amp with RCA DBS hooked up and I can only get an analog signal. Can I only recieve analog from DirectTV DSS? I am useing only RCA wires to hook all my audio up on my reciever, Can I get any digital sound with these hookups? Does the sony PS2 produce a digital sound? With RCA cables? The only way to recieve a PCM or DTS signal is from......?