I had nothing to compare My TX-NR709's to, but with the new HDMI board I realize there was something wrong with it from the get go. I am watching and listing to the 5.1 stuff I have and I am actually hearing surround sound, and it's sound quality is greatly improved. I also notice the visual quality of the HDMI feed from the Apple TV is much better. I am watching Cosmos: A Spacetime Odyssey the 3D affects in the atmosphere of Jupiter is astonishing. I wonder if anyone else has noticed this?