Yamaha HS8s

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