If the Marantz is selecting Dolby True HD, with a bluray disc, then no you will not get the height speakers to play. I believe you need to select something like Pro Logic IIZ. I had the same problem with my Onkyo 1007. It wouldn't play wides or height with a blu ray disc because I had selected Dolby True HD as the prefered sound field on blu ray. I could be wrong, but it wouldnt hurt to try changing the sound processing to see what happens. Oops! someone beat me to it.