Adjustable Speaker Mount for R-50M RP-502S Klipsch Speaker Wall Mount, Metal ...

This ensures that the brackets will not obstruct the use of the speakers. Adjustable Speaker Mount: Loosened and tightened the side screw to achieve tilt and swivel adjustable. The speaker bracket can effortlessly find your sound sweet spot with 45° +/- of tilt and 90° +/- of swivel.

eBay