Bogen Model AS1 is an 8in. cone-type loudspeaker complete with a built-in 1-watt amplifier and volume control. Volume control allows adjustment of the paging level at each speaker location in the system. The speaker is available unmounted or fully assembled in a wall baffle (Model ASWB1) on a white ceiling grille (Model ASWG1) or on a white ceiling grille with a detachable knob for volume control (ASWG1DK).