Cd transport

I’d buy a better CDP and forgo using the DAC in the P5. If you can find a discontinued Cambridge 851C you will be better off. If you can’t find a 851C look at the current Rotel RCD 1572 MKII. Nice thing about both of these players is you can use them as a transport to your P5, but I bet once you compare you’ll bypass the P5 DAC. 

If you have a DAC then paying for another one could be needless expense. I use a Audiolab CDT 6000, sounds very nice via Denafrips Ares 2. Of course if your DAC needs up grade buy a CD player with digital in for other sources. 

The CXC will break down

Bits are bits! That is why we have the Redbook standard for CD data/playback. All devices that can output the data from a CD must conform to this standard. That is why I use a Sony universal player. Sounds perfectly fine to my golden ears! IMO spending big bucks on a transport is just burning money!

@jasonbourne52 I agree to a point, however....the same grade fuel from the same pump, although making any engine run yields different performance.

I think between different players the internal components although spitting out the same bits to a DAC or especially when converting to analog internally can yield different results.