Yes, provided the CD player has digital output run it through the DAC. I f you like the sound as well as the stand alone player, problem solved. If the stand alone player sounds better then you might search out another DAC.
As you seem happy with your system as is, i would not be inclined to advise replacing your pre when wishing to just add additional digital sources. What source (s) are you going to use with the DAC?
As you seem happy with your system as is, i would not be inclined to advise replacing your pre when wishing to just add additional digital sources. What source (s) are you going to use with the DAC?