It is not possible to connect an external DAC to a ONE.
is the internal DAC inside the Sonos One of decent quality.? I am trying t figure out how to improve the sound of streaming. I currently use Spotify. Would there be a discernable improvement in casual listening by switching to Amazon HD or Tidal?
DACs are commodity items today, and transparent DACs go for pennies. "Quality" of a DAC is only spoken about in audiophile circles. As to there being a difference in streaming services, only you can answer that.
- Would a decent external DAC improve the sound quality of streamed music to my Sonos One?
What is your benchmark that is being used to compare the quality of the music from the One, to seek an improvement of what the One delivers? For instance, if that is typical stereo kit, the way to get significant real improvement is via two One units, set up as a stereo pair, and properly placed in the room.