WeWentSimRacing 
Trak Racer TR8020 Extruded Aluminum Rig 5 Speaker Mount Kit
by Trak Racer
Enhance your rig's audio with the Trak Racer 5 Speaker Mount Kit. Matte black mounts securely attach to aluminum extrusion, placing speakers for surround sound. Compatible with Logitech® Z906 and other wall-mount supported systems. Upgrade your racing experience today!