which receiver new $1k or under

Every brand has its own voice.  Marantz is typically voiced on the warm side.  Yamaha is more neutral, if I remember right.  Whatever brand you choose, buy the most powerful model you are able to.  It doesn't matter if you don't need all those watts.  The larger power supply will give better sound quality, even at low volumes.

+1 Auxinput.  From user experiences I've read it seems Yamaha may have an edge in reliability.  Not a small thing IMO. 

You really can't go wrong with Marantz or Yamaha..... I might also add Onkyo to your list as well.  Some very good options at that price range b/t the 3.

Yes I agree with Auxinput especially when it comes to sources. Marantz CD/SACD players seem to be warmer and more musical than say Oppo Digital and even Rotel. I’ve had all brands and Marantz seems to really be built for the music. NAD also. Receivers same sentiment.  

I think in that price range, I'd recommend either the Yamaha RX-A1070, the Onkyo TX-RZ820, or the Marantz SR6011. These are all just slightly north of your 1k budget, but not by much, and give you a lot of performance for the dollar.