I finally pulled the trigger on the yamaha RXV463 i sold my older onkyo SR504 model. My room is small is less than 1500 cubic feet and quite reflective.
The onkyo sounded very harsh and lacked so much fine detail, i had to keep turning up the volume to get fine details on soundtracks and down whenever there was a major sound effect due to distortion. With exactly the same speaker positions and same distance and level settings as the onkyo the Yamaha soundly thrashes the onkyo in the sound quality aspect. The yamaha has a much lower audio noise floor and better amps which makes me just set the volume for a film and leave it there, the dynamics play out so beautiful and i never have to touch the volume control during the entire film.
I am amazed at how much of difference the AVR could make in my setup, as the level of detail i am hearing is wonderful. I feel bad that onkyo does not make their units like they did before.
Thanks to everyone at this forum for their help in making me choose this receiver.