I want to mount my arc on the wall below my tv and have been watching YouTube videos by Peter Pee. He goes into technical details on all aspects of systems and mainly Sonos recently. According to Peter, there is an optimum distance from the arc that you can sit at to enjoy Atmos and the up-firing speakers are at a fixed angle not allowing for much adjustment to this distance. The only adjustment you can make with a wall mount is the distance below the ceiling. He provides a chart showing the impact of changing the height and changing the angle of the unit to the ideal sitting location. Wall mount does not allow for any angle change. Sonos should provide information on the best mounting option for a given setup. For example I have a 75” tv and sit 15’ away from the arc and can mount the arc 7’ below the seating. What is the best angle for my arc??? Also, they should sell a mount that allows that allows adjustment of the angle.