That worked fairly well, but seems to have some issues. I configured it as a 5.1 setup and all the speaker tests work with the exception of the subwoofer. No output whatsoever. I downloaded a 5.1 video sample online which worked with all channels, including the subwoofer. While playing music again (through a variety of players) cycled through all the Marantz surround modes: M-CH movie, Dolby VS, Stereo 192k, M-CH Music, M-CH 5.1 Music, and Auto. Only the main towers are outputting audio, I'm assuming because it's recorded in stereo.
When I set it up as stereo, it gives the receiver back a plethora of modes, however, none that appear to play just 2.1 audio. It's either all channels or mains only.
Any ideas?