I just received a PS Audio DirectStream Junior (DSj) and putting it through it's 250 hour burn in. I'm at 72 hours and it sounds amazing! I also like that it is completely upgradable, has the built in bridge, can unfold MQA and can use Roon! The Chord Dave is also FPGA (upgradable), but doesn't do MQA and no bridge so you need another box to do the streaming (be it a computer, Aurender, etc). I still think the DAC in my Esoteric K-05 SACD player is better than the DSj. I'll leave final judgement until after full burn in of the DSj. However, I really don't care, if it isn't better. It still sounds awesome, makes life easier and is future proof. Did I mention that it has auto select input...that is an awesome feature; to-die-for feature for coach potatoes!
Maybe the Dave is better, maybe the Lumin is better. Lets face it though, there are Esoteric and dCS DACs that are in the 40K price range that are also better.