Type: Sealed-box, active subwooferDriver: 300mm pulp cone with 60mm thermally bonded voice coil, High-power long-throw magnet systemLow Frequency Cut-off: -6dB @ 28HzAmplifier: 500 Watts active systemLow Pass Filter: Variable 2nd order, 35Hz to 150HzPhase: Variable 0 to 180Dimensions: 360 x 360 x 360mm (HxWxD)Weight: 20kg (Single unpacked)Finishes: High gloss piano black or white.