Speaker for transmitting alarm voice messages with high intelligibility and background music. Power (selectable) at 100V: 6 W – 3 W – 1.5 W (power values are halved at 70 V). 6" diameter dual cone wide band loudspeaker. Steel protection Fire Dome, terminal strip in ceramic material for connecting flameproof input and output cables, thermal fuse, suitable internal wiring. Conforms to EN 54-24 regulations. Structure, front grille, and protection cap in steel, RAL 9003 White.