The SW-10 was designed to reproduce room filling, deep and powerful bass essential for experiencing music and movies the way music artist and movie producers intended.FEATURES › 400-Watt* Power Output › 10" Driver for Deep and Powerful Bass › Vented Enclosure for Lower Frequency Bass › Phase Switch allows 0o or 180o › Crossover Frequency Control for Manual Adjustment › Line Level Inputs › Detachable power cord › BASH Amplifier for consistent power