Two-way ceiling speaker with rear enclosure and power rating of 30 W (selectable to 15, 7.5 and 3.8 W), 100 V line. Connection of low impedance 8 ohms. 6" woofer + 0,5" tweeter. Frequency response of 100-20.000 Hz. Sensitivity 90 dB (1 W, 1 m and 1 kHz). Maximum sound pressure level 105 dB (30 W, 1 m and 1 kHz). Flush mounting system with rotating tabs. Dimensions 240 mm (Ø) x 155 mm (depth), ceiling mounting hole 210 mm Ø. ABS and metallic grille, white colour (RAL 9016).