I still use RX-A3060 as Pre-Pro. It only powers 4 Atmos speakers now. I tried Denon AVR-X3800h but didn't find it much of an improvement, so I returned it.I wish I could do the same with my RX-A2050 but I use it's multitude of inputs and would need a preamp with similar functionality. A preamp with that functionality is sadly astronomical in pricing, it is cheaper to live with the current draw.
I considered getting a separate processor with balanced outputs and but that's $3.5K+ and I will still need an amp for Height channels. Perhaps, one day...