Energy Power 12 Powered Subwoofer Type: single driver subwoofer Frequency Response: 35Hz to 120Hz Crossover Frequency: 50-150Hz Sub Bass: 1 x 305mm cone Enclosure: bass reflex Finish: black Dimensions: 356 x 343 x 406mm Weight: 10.4kg Note: 75 watt amplifier 150 Watts Canada