As I understand it, MMHR can handle 8 channels (7.1). And the setup for the HD621 mentions 8 channels as well (one can choose between 6 and 8, I guess depending on processor). Of course all of the above is theoretical as there is no processor capable of taking the input, presumably until the MMHR input card which VK mentions.

From all of this, I hope we can safely assume that the HD621 can already handle a 7.1 PCM signal from the HDMI input? (I mean, the hardware/DSP is sufficient, even if the firmware may need tweaking.)

I am aware that there are few BD titles with 7.1 soundtracks. Just a theoretical question.

(I am watching what happens to the 861, because I would love to make it my next step after my 568.2MM rather than going up to a G-series processor.)


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