Just as a matter of curiosity...,
My Yamaha RX-Z9’s menu allows each input a separate, "trim" volume control so that you can match the apparent volumes from the different sources without resorting to the primary volume knob each time you change the input source.
I’m assuming that your Yamaha would have similar (maybe a bad assumption), but if it does, have you tried to turn up the volume here so that you don’t end up at 70% of the main volume knob setting?