I have the 4308.Thanks for your reply, but I can't find where it gives me the option to do this. Whether it says "pass through" or "by pass", I can't find it. And the OSM is pretty easy to navigate through, so I'll keep looking. Anyone else have a Denon avr-4308ci that knows how to get to this option??
In the HDMI setup section, if you set video convert to none, it will pass through the HDMI signal.
You could also set it to 'A to H', which will let you convert analog sources, but leave digital sources unaltered. This can be set on a input to input basis.