Auro3D's bass boost has never really bothered me because actual multi-channel music is rarely tonally identical to stereo recordings of the same material. It often has more bass, sometimes substantially so. And there are other differences. It's also already impossible to tune bass precisely since it vastly varies from recording to recording to an almost comical degree.
That said, if you really want to remove the bass boost properly, it should be possible with the newer Denons(X4700H) that offer a quick switch profile which include Audyssey settings. So you could make a curve for with-Auro3D and then one for everything else. Alternatively, you could use profiles saved in the app I suppose as well, though that's getting too tedious for me to bother with.
There is more and more Atmos music on Apple Music every week(including older albums), and the amount of pure-stereo I listen to continues to decrease, so I've honestly become less concerned about figuring out the perfect upmixing. In the long term it doesn't seem like it will matter.
That said, if you really want to remove the bass boost properly, it should be possible with the newer Denons(X4700H) that offer a quick switch profile which include Audyssey settings. So you could make a curve for with-Auro3D and then one for everything else. Alternatively, you could use profiles saved in the app I suppose as well, though that's getting too tedious for me to bother with.
There is more and more Atmos music on Apple Music every week(including older albums), and the amount of pure-stereo I listen to continues to decrease, so I've honestly become less concerned about figuring out the perfect upmixing. In the long term it doesn't seem like it will matter.