I wrote this on another thread that was about the same sort of thing:
"Admittedly, I don't run my 7.1.2 setup quite that loud. I do, however, bi-amp and bi-wire (don't judge...) the front 3. My reasoning was that the 6300 could cope with the 4 surrounds and 2 Atmos speakers.
However, having had to pack it all up, deal with the snake pit of wiring and now trying to unpack it all again, I am wondering if it's all worth it. So I am going to try without the amp. I am going try running my system without the Emotiva UPA5 amp and see if the 6300 can run it to reasonable levels.
To be honest, if it can't then I think I'm going to upgrade to an 8500 instead."
I'm tired of the grief of setting this all up and the piles of wiring everywhere. So I think I'm back to a more simpler life of just wires to speakers and noting else...
Sony XBR-85X900F, Oppo 203 UHD, Denon X6300H, Emotiva UPA5 (triggered), Wharfedale Pacific Evo 40s, CS, 10s, PC DX12 sub, Def Tech A60 Atmos tops, the internet and a Nvidia Shield.