Two-way ceiling speaker with rear enclosure and power rating of 30 W (selectable to 30, 15, 7.5 & 3.75 W), 100 V line. Connection of low impedance 8 ohms & 75 W. 6.5" woofer + 1" tweeter. Frequency response of 60 ~ 20.000 Hz. Sensitivity 88 dB (1 W, 1 m and 1 kHz). Maximum sound pressure level 103 dB (30 W, 1 m and 1 kHz). Flush mounting system with rotating tabs. Dimensions 267 mm (Ø) x 162 mm (depth), ceiling mounting hole 240 mm Ø. ABS and metallic grille, white colour (RAL 9016).