The 53Qw is a specialised all-terrain boundary application speaker system for integration into a 90 degree corner, such as at 2 walls or a wall and ceiling. This model is ideally suited for immersive 3D audio systems, such as Atmos, Auro3D, DTS:X, or for traditional music and home theatre application when the speakers need to be mounted up high. This would include outdoor trellises, pergolas, under eave etc. This versatile speaker works well in residential and commercial installations where it can be located at ceiling and wall junctures to provide excellent sound performance yet minimal visible intrusion into the space and with its compact design, this series easily integrates into any environment, both indoor and outdoor.