If you have $5k this Holo May KTE dac is probably the best under $10k dac currently on the market. This is my Next dac for sure and I have heard many excellent award winning dacs.
http://v2.stereotimes.com/post/kitsune-holo-audio-kte-may-dac--by-david-abramson/
http://v2.stereotimes.com/post/kitsune-holo-audio-kte-may-dac--by-david-abramson/