Can a dvd player effect the sound produced on a home theater. I use a jvc hooked up via optical cable. I am sending everything out as a bitstream. In my current setup I feel though that I am missing some detail compared to other systems I have heard. i recently bought a 7125 and am extremely happy with the performance. I just still feel like im missing something. If some of you have seen my other posts you know I have not upgraded the preamp yet. I decided to wait. I have thought about upgrading to an upconverting dvd player since they are so cheap.