I think if you do a search on the two, there are a few threads comparing them. The theme seemed to be that the 5890 was a better unit in terms of power. I've used the 1014 and found it to be adequate but not spectacular in terms of power.
Pretty much more real world power in the 5890. If it is a small room, or if you don't watch / listen at true reference type volume levels, there really would not be that much difference. The Yamaha is still a bit brighter than the Pioneer but nothing like the older Yamaha AVR's were.
"Well I just ordered the 5890 with a 2 year extended warrant and 2nd day air from JR's for 539"
Im fairly new here. Can you please give me more info on JR's. Is there a web site? I have been pricing this amp and I would like to talk to him. Thank you . Murph
Well straight out of the box and using the auto setup, I am not more impressed with this than my old Kenwood vr7080. And supposedly the Yamaha is way better. It sounds great, but I am not more impressed. Hopefully this just ins't setup right.
I would imagine mid-low end receivers would sound pretty much the same, with exception of Harman Kardon or Marantz. At that price point it's pretty much about the number of features.