The all-in-one design of the Pro SoundBar provides full-range sound without the need for a separate subwoofer, providing excellent quality audio while minimizing sound transfer to neighboring rooms. For further volume management, the Pro SoundBar offers a 4-position volume limiting switch to control the maximum volume output of the soundbar. The Pro SoundBar supports both fixed and variable source volume for maximum TV compatibility. Controls for the volume switch and source volume selection can be covered by a lockout plate to prevent tampering by anyone other than the support staff.