I find Bluesound to be not as good as Control4 streaming to my Anthem. I am also thinking that Apple Lossless even though it is 12/44 is sounding better than Bluesound
Bluesound Node 2i is optical. I have tried it with RCA, and Coaxial. My best results by far have been optical. I find that HDMI has been better so that's why I am not using Bluesound. To be fair when I tested coaxial I used a $30 cable, I'm sure I would have had better results with a higher quality coaxial. The optical cable is the one that came with the Bluesound
I am doing a major upgrade on system so I am looking for a major upgrade to streaming. I stream Qobuz but now I also stream Apple Lossless