Bose 843344-0010 speaker mount CeilingAMM Suspension, 329 mm The AMM Suspension Bracket is designed for use with Bose AMM108 or the Bose AMM112 loudspeaker. The Suspension Bracket is designed to provide single point suspension for the loudspeakers and mounts along the center of gravity so the loudspeaker hangs level. The bracket has multiple single point suspension attachment points to allow incremental angle adjustment from 40 degrees (AMM108) or 35 degrees (AMM112) of downtilt and