Oh, I did hear the theater and just didn't think it was part of that demo. Of course it had to be given the decoding of all three 3-D audio formats. My bad .
The theater sounded great of course but I give much of the credit to the room equalization and design. It is impossible to separate that from the fidelity of the processor.
From what I've read over @ AVS ... it was the best (one of) demo of them all.
...The JBL Synthesis room with the SDP-75 3D (exact same replica as/based on the Trinnov Altitude).