Most sound bar mounts will connect to the TV brackets right behind your TV that way the sound bar will move with your TV when extending or adjusting it's position. If you are referring to attaching to the extension arms, no you cannot hang a sound bar from those. I hope that helps. If you have any additional questions please give our customer support team a shout at email@example.com or at 1-800-359-5520, we are happy to help!
- Haydn @ SANUS