Athena AS-P300 8" 300 Watt Front-firing, Front-ported Compact Subwoofer (Discontinued by Manufacturer) Power handling: 300 watts peak, 100 watts RMS 1" Voice coil and 20 ounce magnet 8" high-excursion Injection-molded polypropylene woofer with rubber surrounds 16"H x 9 3/5"W x 11 1/4"D