Originally Posted by jtbell
I've almost decided to order a T747, but I'd like to confirm one last thing. Could someone please verify that the same input (audio or video) can be used in two different sources as shown in the example below?
Source A D Video
1 -- H1 H1 (DVR 1)
2 -- H2 H2 (DVR 2)
6 -- O2 H1 (DVR 1 + Apple TV audio)
8 -- O2 H2 (DVR 2 + Apple TV audio)
(for example, so that while watching TV via a DVR I can switch quickly between using the DVR's own audio, and audio from another device, in this case music from an Apple TV)
I was unable
to do what you indicated on my T747. I was able to match any component, s-video, or composite video source with any optical/coaxial/analog sound source. Once HDMI was selected (H1, H2, etc) in either the video or audio source, the corresponding opposite (audio or video) was not able to be selected.
If the above isn't clear, I think the simpler way to say it is that the 747 treats non-HDMI audio/video sources as "combine-able" but HDMI sources are not "combine-able".
I don't know why NAD placed this restriction unless the repeater-function nature of the HDMI circuitry prevented HDMI audio & video from being truly independent of one another. Regardless, in my test I was unable to combine H1 video with any digital
audio except H1. I was also unable to combine Component-1 video with any HDMI audio although optical or coax were OK.
I suppose I could be doing something wrong or have a bug in my unit but the menus are pretty simple and the "forced" changes appear immediately so I doubt it.