Thanks. 3D is not a factor to me, but the yahama being newer has dolby true hd and dts hd as well as hdmi connections. That was what I liked about it, but the Onkyo is my current receiver (I own both but am going to sell the other) and I wanted some opinions before I got rid of the Yamaha. It it not that big of a loss using optical rather than HDMI? Im quite fond of my 7.1 Onkyo, and use infinity interlude center and fronts with (il10 il25c) with onyko middles and powered sub, and Polk audio rears.