Sticking with CD's for now

Could anyone offer some help with my interest in adding an outboard DAC to my current Ayre CX7e MP digital player.
DAC would need to have aes/ebu input capability to consider it.
Trying to find improved sound via CD player for the time being with future options the DAC can provide to be considered.
Any direct experience with opinions and options would be appreciated. Price range $2000 vacinity new or used.