I use a Lyngdorf 2170 in my downstairs system. I run my stock Oppo 205 out to the Lyngdorf via coax and it is substantially superior to using the internal Oppo DAC out to the Lyngdorf via XLR. As has been mentioned above, with Lyngdorf integrateds you also get Room Perfect. At the price of used units, I think you would be hard pressed to find a better integrated with an internal DAC.
