I owned both and compared them directly over an extended period. They sound surprisingly different. The Bluesound is considerably warmer, and the Aries Mini is faster and more incisive. That basic difference was present whether using the internal DACs or not, but of course using the digital out closes the gap slightly and highlights whatever you have downstream.
In my system the Aries Mini's sound was the better fit, but I also strongly prefer Lightning DS in its current form over Bluesound's software. That was the clincher for me.
If you don't need the built-in DAC, consider the SoTM SMS-200 or Sonore Microrendu.
In my system the Aries Mini's sound was the better fit, but I also strongly prefer Lightning DS in its current form over Bluesound's software. That was the clincher for me.
If you don't need the built-in DAC, consider the SoTM SMS-200 or Sonore Microrendu.