Atlantic Technology - 10" Powered Box Subwoofer - 224SB-BLKNo quality home theater or music system is complete without the ability to effortlessly reproduce the last one and a half octaves of sound the deep bass. The 224 SB is a powered subwoofer provides the deep bass that adds drama to the action scenes in a movie and makes music come alive. Clean, powerful deep bass is what separates a great sound system from a merely good one. Product includes powerful low distortion amplifiers and low resonance, long