Product colour: Black On/off switch: Yes Material: MDF AC input frequency: 50/60 Hz Power source type: AC AC input voltage: 110 - 240 V Subwoofer width: 36 cm Subwoofer weight: 14.1 kg Subwoofer height: 46.5 cm Subwoofer depth: 44 cm Subwoofer frequency range: 20 - 200 Hz Phase shift: 0 - 180° Subwoofer driver diameter (imperial): 30.5 cm (12") Subwoofer type: Active subwoofer Number of subwoofers: 1 Subwoofer crossover frequencies: 50 - 150 Hz Subwoofer RMS power: 120 W Subwoofer peak power: 240 W Amplifier class: D