JBL ES250PBK High-Performance 12-Inch Powered SubwooferHigh -definition video, meet high-definition audio.Bring your home theater system to life with 400 watts of power, up to 700 watts of peak power and the proprietary JBL? PolyPlas? woofer. You?ll enjoy unsurpassed low-frequency performance and signature JBL sound. Your favorite movie special effects will have deep, rich, resonant bass and no unwanted distortion or boominess.ES250P at a glance:400 watts, 700 watts of peak power handlingPatented JBL? 12"