External DAC will make an improvement, likely. It depends which Node you have (you didn't specify) and which DAC you get. Reason being that Bluesound has improved their DAC over the years, so which external DAC you get will matter vis a via beating the DAC in the Bluesound. I have not found connection method to matter nearly as much as which DAC is used.
External DAC?
My question is am I going to improve sound quality by adding an external DAC to a Blusound node? For example, a SCHITT BIFrost and what is the best connection method? And another question to ask is about usage of my Bluesound node …just being a Streamer? Am I losing anything by doing it this way? Thanks