@tcotruvo I have a Bluesound Node (gen 3) and the internal dac is pretty good. It was not quite as good as my old Arcam irDAC, but reasonably close. It is nowhere near as good as my current Chord QuteHD dac, but that is not really surprising. That said, I really enjoy using the Node as a dedicated server and streamer for the Chord. Functionality and sound quality of the Node used only as a source are both excellent.
Adding an upgraded power cable improved the sound quality of both streaming/server functions and the Node’s internal dac, and its seems others have had success adding and external power supply/kit.
I have been experimenting with different digital coax cables from the Node to the Chord, and through blind tests I have (unfortunately for my pocketbook) yet to find a ceiling on the improvements each step up the quality ladder provides up to several multiples of the Node cost. My recommendation is to find a good dac to pair with the Node, and then experiment with different cables and power supply as your budget allows. You will be amazed.