I just recently bought a Denon 2910 and couldn't be happier. Bought used ~$330. I even did side by side comparisons with a Bel canto PL-2, and imo, the difference was minimal. I also did some experimenting with the 2910 going digital out to a Bel canto DAC 2, and again, little, if any difference that I could detect. Of course, room dynamics, speaker setup, and a whole bunch of other factors go into the equation. With that said, I think you'll find the Denon 2910 to have a wonderful DAC and you'd be hard pressed to improve it with an outboard DAC (within rea$on). And if you could, might as well just get an updated player for that kind of money.