The Federal Signal Model AM15 is a rugged, re-entrant speaker for use in public address or paging applications. This 15 watt speaker features a rugged speaker cone and projector constructed of spun aluminum. The speaker wiring connections are enclosed in a dust- and moisture-proof, die-cast aluminum compartment. All external surfaces are sealed with gray powder coat paint. Two screws inserted through the back of the wiring compartment provide for simple wall mount installation. The bottom of the AM15 contains two 1/2-inch conduit openings to accommodate inbound and outbound audio wiring.