Best upgrade for cd player?


Want more nuance, detail, dynamics.
ptss
My recipe is as follows YMMV. Tube preamp for nuance.  For bass and dynamics plug into high current outlet of power conditioner or straight into wall socket.  For more details use 14 gauge or smaller power cord. 
@gshepardbuster . Thanks. I use high current power conditioner :)   (wall power horrible)  . Spectral pre. Thinking of lps for digital section of oppo 205. Wondering about clock upgrade. Very nice movies w oppo. 
Lps will likely improve sound over a switch mode.   My Meridian 808 had the switching power supply but now is lps.  Still sounds better with high current outlet, go figure.