Bogen Communications, Inc.","Bogen's AMBSQ1 and AMBSL1 speakers feature an all-steel surface-mounted enclosure with an 8\" cone loudspeaker, built-in 1W amplifier, and volume control. The AMBSQ1 is suitable for ceiling or wall mounting.","Bogen's AMBSQ1 and AMBSL1 speakers feature an all-steel surface-mounted enclosure with an 8\" cone loudspeaker, built-in 1W amplifier, and volume control.The AMBSQ1 is suitable for ceiling or wall mounting. The AMBSL1 is designed primarily for wall mounting and its face is angled downward by 12.5 degrees. A detachable volume control knob on the grille allows individual adjustment of paging level at each speaker location. *Rugged all-steel surface-mounted enclosure. *Built-in 1W amplifier. *Full range 8\" cone speaker for excellent intelligibility. *Built-in volume control with detachable knob. *Available as flat-fronted (AMBSQ1) or with 12.5° angled front (AMBSL1).