5” aluminium sound projector. 20 W (100V) transformer. Selectable power 20-10-5-2.5-1.25W. Frequency response 160 Hz - 20000 Hz; Sound pressure: max SPL @1m: 105dB; max SPL @4m: 93dB; sensitivity 92dB; coverage angle: 155°. Cylindrical body in flame-proof steel with U-shaped support in aluminium. Ceramic inlet and outlet connectors with thermal protection fuse. Material: aluminium; Protection rating: IP66; colour: Grey-RAL 7035. Dimensions: Depth: 200mm; Diameter: 146 mm. Weight 2.73 kg. EN 54 -24 Certification 1488-CPR-0485/W.