Hiya Mullhead.
A very nice, entertaining, articulate first post. So I thought I'd reward you by telling you I haven't got the foggiest notion of how to answer you question.
We have a number of Denon owners here, and I'm sure they'll be able to help. Just guessing, I think the signal passed from the 5900 to the 3805 via DenonLink is a pure digital signal. So that means the DACs in the 3805 are converting the digital to analog, rather than the DACs in the 5900. However, I'd be surprised if the DACs in the 3805 were that much better than the DACs in the 5900. So, I've just wasted your time, and mine, and I'll shut up now so someone who knows what they're talking about can chime in.
