Circular horn speaker with power rating of 50 W (selectable to 50, 25, 12.5 & 6.8 W) in 100 V line. Low impedance (8 ohm) connection. Frequency response of 380-6500 Hz. Sensitivity 117 dB (1 W, 1 m and 1 kHz). Maximum sound pressure level 133 dB (50 W, 1 m and 1 kHz). Weight 2.3 kg. Dimensions Ø327 x 350 (mm). Finishing aluminium, steel bracket, suitable for outdoor (IP-66).