Two-way ceiling speaker with rear enclosure and power rating of 40 W (selectable to 20, 10 and 5 W), 100 V line. Connection of low impedance 8 ohms. 8" woofer + 0,5" tweeter. Frequency response of 100-18.000 Hz. Sensitivity 91 dB (1 W, 1 m and 1 kHz). Maximum sound pressure level 107 dB (40 W, 1 m and 1 kHz). Flush mounting system with rotating tabs. Dimensions 280 mm (Ø) x 190 mm (depth), ceiling mounting hole 240 mm Ø. ABS and metallic grille, white colour (RAL 9016).