Summary: Bought first unit as a refurb January 2012. In first five minutes of start up it overheated, smoked a bit and shut off. Marantz support was better than expected in no-nonsense offer to replace it. Replacement unit intermittently blanked video and occasionally audio linked through HDMI. Marantz less helpful. Eventually took it to authorized repair 50 miles away. They put in a new HDMI board. A few weeks later, same problem.
Multi Zone only with 5.1 in the main Zone / Misleading Description!
Heiner Egloff, Amazon
14 December 2010
Summary: Overall good product, good sound, easy setup. BUT, I wanted to use it as a preamp/processor for the main zone in a 7.1 speaker setup and assign the power amp to zone 2. Well, that latter power amp assingment reduces the main output to 5.1, i.e. turns off the rear surround channels. I contacted Marantz and they confirmed. Obviously, the description suggests otherwise so I returned it.