I have a cd player that has coax (1 rca) out and that is going to the amp. My question is, i have a KORG KP3 "Kaoss Pad" and it only has the red and white, meaning theres no way i could run the cd player THRU that and keep the signal the 5.1 coax puts out? doubt there's any kind of convertor for this? I just want to keep the quality. It sounds better on the coax digital rather than rca.