Henryhk:
I have about 200 hours on my DCC2, and while I haven't done an A-B with an external preamp, I really haven't felt any need to. As Lugnut mentioned above, the unit is incredibly SMOOTH and involving, but with none of the blurring of detail that those terms sometimes imply. I've had some fine preamps in my system--most recently the First Sound Presence Deluxe--but with the DCC2 I'm literally hearing things in recordings I haven't heard before. And the music is more enjoyable and listenable than it's ever been. I'm not sure how much of that is attributable to the preamp section, but I'm guessing a pretty decent chunk.
I have about 200 hours on my DCC2, and while I haven't done an A-B with an external preamp, I really haven't felt any need to. As Lugnut mentioned above, the unit is incredibly SMOOTH and involving, but with none of the blurring of detail that those terms sometimes imply. I've had some fine preamps in my system--most recently the First Sound Presence Deluxe--but with the DCC2 I'm literally hearing things in recordings I haven't heard before. And the music is more enjoyable and listenable than it's ever been. I'm not sure how much of that is attributable to the preamp section, but I'm guessing a pretty decent chunk.