I have a arc system with sub and two ones as rear speakers. When playing music from smart tv apps, such as Spotify and watching music videos, I don’t get the best sound quality, like I do when listening to music through the Sonos app. I have found out that the arc system has two modes. One for watching tv, and one for playing music. When listening to music through tv apps, It will only play in tv mode, and you don’t get that good music sound quality the system is capable of producing. So I wonder why Sonos don’t have a manual “switch” for this? 
 

I would love to have great music sound quality also when listening to tv apps and watching music videos.