I must jump in here and say that there is definitely a possibility for an increase in perceived sound quality. Most of the time I’m in the “data” camp of things. No fancy Ethernet cables in my setup, just correctly made high quality data cables for example.
But streaming endpoints has far too many times proved to me that there is a possibly big difference in SQ. Probably very much depending on your system. I’ve demoed/owned Auralic, dCS, Sonore and Allo.
I recently bought and returned the highly praised Allo USBridge Signature (w. External Shanti psu), because it frankly didn’t do anything better than a MacBook in regards of SQ in my system. The difference between the Mac or Allo and my Aries G2 are on some tracks very noticeable and on other tracks less noticeable. But it’s definitely there. And it still surprises me.
That’s my 5 cents. Get a demo if you’re interested and try before you buy. Always the best advice!