Ceiling speaker with rear enclosure and power rating of 6 W (selectable to 3 and 1.5 W), 100 V line. Connection of low impedance 8 ohms. 2.5" speaker. Frequency response of 220-20.000 Hz. Sensitivity 87 dB (1 W, 1 m and 1 kHz). Maximum sound pressure level 94 dB (6 W, 1 m and 1 kHz). Flush mounting, quick spring-type system. Dimensions 100 mm (Ø) x 93.6 mm (depth), ceiling mounting hole 92 mm Ø. ABS and metallic grille, white colour (RAL 9016). Suitable for outdoor (IP-55).