Please help me understand the following. I have a new Denon 3806 I use with a Pioneer Elite 45 A DVD/CD player for movie watching using a 5.1 speaker set up. I want to use the same DVD player to feed a signal to a vintage pre amp for 2 channel music listening (pre amp connected to 2 other speakers dedicated for music)also(the pre amp feeds 2 amps). My question is this; the DVD player is connected to the Denon via optical toslink. I also connected the DVD player to the vintage pre amp through the RCA "out" in the DVD for left front/right front. When I play the DVD player I do not get any sound. Is it the case that if I want to use the same DVD player in this set up I have to constantly go into the DVD player's set-up menu and change the signal from digital to analog in order for the old pre amp to recognize the signal?. Sorry for the long question.