hey all, i've come seeking advice. i've got a nad320bee powering 2x cbm170's, and i need to upgrade my cd player. i'm pretty ignorant of what there is to know about cd players and what the price (should) gets me.

any recommendations on what would 'fit' with this setup? my budget is 400-500. at this price point (and adjacent price points) what are the main things i should look out for/know of when attempting to get the best audio quality for the price? by this i mean the specs, design, and features (if applicable).