I can’t answer your question directly as I have never compared the Marantz and Oppo against each other. However, I recently purchased an Oppo UDP-205 and could not be happier with the results. 4K picture quality is simply stunning (110" Stewart screen and Sony VPL-VW665ES projector); just about as good as it gets IMHO. Likewise, sound quality is excellent on Blue-Ray disc and computer audio via the HDMI input on the Oppo. Overall I could not be happier with the results, I am there!
Of course the $64k question is how does the Oppo compare to a full dCS Vivaldi stack? Now, that comparison I would love to hear. Interestingly I did hear a full dCS Vivaldi stack at this years Axponia show, complete with some very expensive amplification and speakers (see my previous post on the sound of this $0.5 million system). Ridiculous though this may seem, got home and still preferred the sound of my Gale/Michell/McIntosh system.
Of course the $64k question is how does the Oppo compare to a full dCS Vivaldi stack? Now, that comparison I would love to hear. Interestingly I did hear a full dCS Vivaldi stack at this years Axponia show, complete with some very expensive amplification and speakers (see my previous post on the sound of this $0.5 million system). Ridiculous though this may seem, got home and still preferred the sound of my Gale/Michell/McIntosh system.