Roon sends ripped, downloaded, and Tidal files via ethernet to an Ayre QX-5/20 digital hub and I sit with an iPad selecting what I want to hear. The sound is superb, e.g., the DSD download of "Time Out" from Acoustic Sounds seems to sound a bit better than the SACD played on my beloved Ayre C-5xeMP. I've been an audio enthusiast since the early 50s, and this really does seem to be a golden age.