Speaker made of aluminum for 70 / 100V lines. Maximum power 30W. Low loss transformer 20W / 10W / 5W / 2.5W @ 100V, 20W / 10W / 5W @ 70V. Frequency response: 150Hz-20kHz. Sensitivity: 101dB / 90dB (1W, 1m). Dimensions in mm (Diameter x depth) 140 x 195 mm. Color: RAL 9003. (U-bracket included). Protection degree IP 66 and Type B according to EN54-24.