Amp insisting on 7.1?

[willhub]

On certain content on my PC and via apps such as Disney+, it's pushing 7.1 to my amp even though I've got it wet to 4.1 in the settings, anyway to make it do 5.1?

ONKYO TR NX686
LG BX 55" TV

Thanks

 

[hornetstinger]

Your amp will downmix to whatever channels you have.

 

[willhub]

Your amp will downmix to whatever channels you have.

That's what I thought, but it was showing 7.1 on the amp, even though it was configured to 4.1, I felt that some of the sounds were missing too.