Elac SUB 211 D. Subwoofer RMS power: 250 W, Subwoofer frequency range: 24 - 240 Hz. Input voltage: 90 - 240 V, Power consumption (typical): 300 W, Power consumption (standby): 0.5 W. Colour of product: Black. Subwoofer width: 335 mm, Subwoofer depth: 430 mm, Subwoofer height: 475 mm