I used to have a Sonos Connect that was modified by Modwright I think, they redo the clock and put a nice coax jack, power supply I think... serving up my music library that is all WAV files ripped to a network hard drive.. It sounded great.
I got the upgrade bug and bought a Aurender N150, the entry level but still $3500, now I have my WAV library on a SSD that is mounted in the Aurender. It goes USB to my Schitt Yggdrisal DAC and its no comparison, the Aurender sounds lightyears better for the same music. Then I read guys talking about how they got the more expensive Aurender and it blows away the entry level one...
Long and short is digital aint all the same, a high quality, super well engineered quiet streamer like Aurender will take you system to the next level.
Probably even a Bluesound or one of the other budget streamers is worht while.