Subwoofer Up to 225 watts peak power, SPL: 110 db 113 db music and top, 10 "Woofer, Frequency Response: 34Hz - 50Hz to 130Hz (adjustable) Adjustable Low Pass 80Hz high pass, rounded front edges reduce diffraction of sound transmission Front reflex providing low frequencies without feedback, switch on and off the subwoofer in the system, Bypass mode - according to initiate a standard foot pedal