I actually tested this with a low end Sony 510 AVR or something like that.
It worked. The AVR was really surprisingly good and was only $130, I should of kept it. Lots of connections compared to many other AVR's out there these days.
It did not trancode from analog to HDMI and my new Mitsu is lacking in the input department.
I defiently sent Checkerboard 3D through it from the Panasonic 3D Bluray player and had audio over the HDMI.