Cambridge Audio D500 or other transport choice ???

I am ashamed to admit that for some time now I have been using a Sony 555ES 300 Disc changer. I run it’s Toslink output through an original Monarchy Dip, then through a MSB III DAC with HDCD card. I was fooling myself in thinking that by re-clocking with the DIP, and using the external DAC that I was getting good sound. (Though it was obviously better that the RCA outputs of the Sony) I bought an old original Cambridge Audio D300 and have recently hooked it up to the coax side of the Dip where I could easily A/B between it and the changer. It sounds much fuller and richer that the changer! I looking for recomendations for an upgrade from the D300 and have read good things about Cambridge Audio’s D500SE.
The D300 seems to have trouble reading CDRS, that I do play occasionally, and wondered if anyone knew if the D500SE had the same problem. I would appreciate anyone’s recommendation / opinion on the D500SE or any other modestly priced player with a coax output that I could use as a transport.
My other system components consist of original PSB Stratus Gold Speakers, Bryston 4BST amp, Rogue Audio 66 Magnum preamp, MSB Link III with HDCD, and Dual runs of Kimber 8TC to speakers, and Kimber Hero interconnects. Would appreciate anyone's thoughts.

Thanks,
Alan