I have a JVC 5 CD changer that has always worked perfectly, but since I am an upgrader, I feel like buying a new one. I only have one optical digital cable, which I use with my DVD player, so the JVC is hooked up to my Denon 3802 by regular RCA cables. As an experiment, I hooked up the CD player using the digital out, but I noticed no difference in sound quality. I assumed the Denon DAC would be superior to that of the JVC CD player. Should I have heard a difference? Since I noticed no improvement, I think it might be unwise to spend money on a CD player upgrade if it will sound the same to my ears. Oh, and the player I am considering upgrading to is a Denon DVM-3700 to be used only as a CD player.