I only just saw your response . It is no surprise about the digital volume. Apart from the resolution issue, I think a good pre-amp will usually do more good than harm to the overall sound.
Take a look at the Q & A with Accuphase engineers in the following link:
http://www.dagogo.com/Spotlight/AccuphaseCulture.html
I'm not sure whether the DP-77 is a balanced design but I would usually try the balanced cables if the pre-amp had decent balanced inputs.
Take a look at the Q & A with Accuphase engineers in the following link:
http://www.dagogo.com/Spotlight/AccuphaseCulture.html
I'm not sure whether the DP-77 is a balanced design but I would usually try the balanced cables if the pre-amp had decent balanced inputs.