B&W ASW608. Subwoofer type: Active, Subwoofer RMS power: 200 W, Subwoofer frequency range: 23 - 140 Hz. Power source type: AC, Power consumption (typical): 40 W, Power consumption (standby): 0.5 W. Colour of product: Black. Subwoofer width: 260 mm, Subwoofer depth: 330 mm, Subwoofer height: 260 mm