On another note, with the direct Marantz AirPlay instability noted above, I've been using the AppleTV (connected to the SR7009 via HDMI) to stream music via AirPlay as an alternative. I think I notice a distinct difference in sound quality, with the AppleTV being inferior to the direct connection to the Marantz. I don't see a technical reason why this would be so. In both cases the digital signal would be sent to the Marantz onboard DAC for conversion to analog. Digital signals either work or they don't, there is no degradation. So other than a possible mental disorder , I don't see a reason for the discrepancy. Any thoughts?