8" bass-reflex powered subwoofer delivers low frequencies down to 22Hz. - 8" bass-reflex powered subwoofer delivers low frequencies down to 22Hz - 22Hz - 150Hz frequency response - High-power 150W amplifier exclusively designed for low frequencies - LOW CUT switch, LOW CUT control (80-120Hz) HIGH CUT control (80-120 Hz) - PHASE switch allow users to set up a subwoofer system with simple connections and no additional equipment - XLR and TRS phone for outputs and XLR for L and R and EXT SUB