Reviving an old post as I have a similar but slightly different situation.

I have a non-Meridian processor that does not have an HDMI input, and I have a lot of HDMI sources. The non-Meridian system is 2-channel only. Is it possible to use the HD621 stand-alone as an HDMI switcher to route the video via HDMI to the display and extract the audio signal via coax to the non-Meridian processor?

It looks like technically this should work, but since the digital audio signal would not be going to a Meridian processor would a high res HDMI input to the HD621 need to be down sampled to work with a non Meridian processor?

I'm not sure exactly how HDCP etc. comes into play here.