I use the Pandora app on my avrs/bluray players for background music, am not a premium subscriber either. I do like the random choices based on my stations (and I use all 100 and often on quick mix from all of them) for Pandora, many good new artists/albums have come up that way, but turning up the volume can reveal the shortcomings of the low bitrate files (but aren't bad considering how low that is). Spotify has decent quality on the $10/month service (320kbps IIRC), altho my Denon doesn't have the Spotify Connect thing which makes it a little clunkier, do use the Connect feature for Spotify on my PS3 sometimes instead. I think your Marantz may have the Spotify Connect app?