JBL 2516 Quick-Mount Fixed-Angle Bracket for 8330A and 8340A Pair,

The JBL 2516 Quick-Mount Fixed-Angle Bracket is designed for mounting a 8330A or 8340A surround speaker to a wall surface. To install, simply fasten the square wall-mount half to the wall and the angled speaker mount half to the rear of the speaker. Slide the speaker over the wall-mount half and secure the top flanges together.