I'm just curious what makes some of the audiophile playlists such as; "Audiophile HiFi Music with WOW effect" sound so great? I assume it is the source material that is of such high quality? Nothing has changed within the streaming process right? I am a premium user and use Spotify and Sonos Connect with a DAC in my two channel hifi stereo system and these playlists sound really nice. Much better than much of the typical album in my playlists.