JRiver is not a computer. JRiver is a software application. Rather than say that the Marantz requires a computer to run, I think it would be more accurate to say that the Marantz needs to be connected to some other device (for example, Network Attached Storage) that stores and/or streams the digital music files that the Marantz is designed to play. Playback can be controlled with the Marantz remote app for iOS or Android devices. Computer-based software like JRiver is not necessarily required.
PS. I wrote in an earlier post that I didn't think the Marantz supports gapless playback. I was wrong. It does support gapless playback with WAV or FLAC files.
PS. I wrote in an earlier post that I didn't think the Marantz supports gapless playback. I was wrong. It does support gapless playback with WAV or FLAC files.