Just bought this tonight at auction from an estate sale as new.
A Yamaha Aventage RX-A3040 which was the top of the Yamaha line a couple of years back and whilst models have moved on they haven't made a significant difference to the specs only adding Bluetooth and 6K plus native 11.2, essentially still the same out of this world beast and I have no need ( does any one ) of 6K and the 11.2 it does, but you just need a separate amp to enable it on this one.
Needed to upgrade the TV, Computer, router, streaming and Set top box and what ever else audio and the current system wasn't even close to cutting it, also has an MM and loads of other Aux inputs too all with smart phone, computer or tablet apps for control.
I had bought a older but top of the line in 2009 Sony STR-DE495 earlier in the year but it didn't have the inputs I needed so I never connected it in.
The big win for me is that I have the Sony speaker system from the DE495 which will handle the Yamaha quite nicely and at a fraction of the cost of lashing out on premium branded speaker sets.
Still wasn't too cheap but at least now I have options for connection from wifi to digital coax, optical and HDMI all in multiple ports for each, plus of course Dolby Atmos and host of other top end goodies but miles cheaper than the current RX-A8A which is this ones current equivalent at $3500.00
https://usa.yamaha.com/products/audio_visual/av_receivers_amps/rx-a3040/index.html