Alpine PWE-S8 Compact powered subwoofer with 8" sub and 120-watt amp

Product highlights: powered subwoofer with cast metal enclosure 8" woofer high-excursion cone built-in Class D amplifier (120 watts RMS/240 watts peak) 10-gauge amp wiring kit required (sold separately) frequency response: 32-150 Hz variable low-pass crossover (80-200 Hz) variable phase control (0-180 degrees) preamp- and speaker-level inputs dimensions: 13.4"W x 2.875"H x 9.062"D warranty: 1 year MFR # PWE-S8