Sony XS-NW1202S Box Subwoofer (Black) Feel more of your music on the road. Our unique dimpled pentagon woofer design minimizes distortion for clear, accurate bass tones, while high power handling puts more behind every beat. Sony XS NW 1202S is a powerful subwoofer box with a shallow, sealed enclosure. Experience louder, deeper bass with a 30 cm (12 inch) polypropylene cone. Enjoy high power handling with 1800W peak and 420W RMS power handling. A dimpled woofer cone adds extra rigidity for low and accurate bass tones. Acoustic distortion is minimized by a stroke stabilizer rubber surround.