Hi,
I have tried different cd players. Naim cd5xs, Marantz cd 6005, Cambridge cxc, and Roksan caspian m2 cd. Naim and Roksan are better, very close. If your amplifier has balanced input, Roksan caspian has got balanced output and the sound is really better with it compared with the Naim and its rca connections. The Roksan matchs very good with my Luxman 590 axII.