I've been using an Android phone as a streamer for years and just recently gained the ability to connect to my work computer instead (Spotify HQ--> E50). My lord, I swear that bumping the Android audio processing out of the chain has made a very notable difference in the audio quality, not so much night and day per se but much better in terms of dynamics and general clarity.
Now, I put that comment in here because I have M16s on my desk and feel they represented any change very well but ended up swapping them out for some B&W 607s that a friend insisted I try... my lord, that was an unpleasant time. Putting the Revels back on the desk just made it clear how pleasing and effortless these speakers are. I'm not a big EQ guy so only a couple of db down on that midbass hump and the magic is just there, no fuss and no muss. Very nice to just relax and enjoy the music without reaching for EQ every song.