Hi. I have an Arc set up with Sub, 1SL as surround with Sky Q and recently purchased a new Philips Atmos TV. I'm fairly OK I've set it all up correctly.
When I select the DD+ set up in audio sections of Sky and the TV menu the main sound via the Arc is weak/tinny/faint.
For example the app shows 5.1 and the surround sound is immense but the spoken portions of films or general audio via the Arc is quieter, especially with sports, compared to the surround sound/music/effects which are so loud. It's imbalanced.
When I switch all the DD+ off and the apps shows Stero PCM the Arc is more powerful/meatier but the surround is slightly less immense but still is an awesome sound.
Any tips???