Pioneer PD65 needs a DAC

I have a Pioneer PD65 that I have been using as it was intended, a CD player. I don't see (or hear) any reason to replace it as a transport, I would just like to hear if I can improve upon it with an outboard DAC. I have a pair of Dali MS5's currently driven by a pair of BAT VK1000 monoblocks that I might change to either Pass X600's or Elecrocompaniet Nemo's. I am also in the process of changing my BAT VK5i preamp to a Pass X1. I listen to Classic rock, Jazz, Vocal, Classical, most type's with the exception of current rock, RAP, Hip-Hop. Not interested in ruining my equipment. Because technology is always changing in this area, I don't really want to spend thousands. But if that what it takes, please don't exclude it from your recommodations. Any advise would be appreciated.