http://www.onkyousa.com/model.cfm?m=TX-SR805&class=Receiver&p=s
Here's the spec sheet for the 805. On the drop down list on the left, you can pull up the spec on the 806 for comparison. I have the 805, which is a prior model. One thing I immediately noticed is that the 805 is almost 15 lbs heavier that the 806. So the 805 is a significantly beefier machine, for what thats worth. On the other hand, the 806 has two extra HDMI inputs (5 vs. 3) if that's important to you.
Here's the spec sheet for the 805. On the drop down list on the left, you can pull up the spec on the 806 for comparison. I have the 805, which is a prior model. One thing I immediately noticed is that the 805 is almost 15 lbs heavier that the 806. So the 805 is a significantly beefier machine, for what thats worth. On the other hand, the 806 has two extra HDMI inputs (5 vs. 3) if that's important to you.