ATNXPRO1000SV 150 watts maximum power handling, Dual voice coil, fiberglass cone woofer with rubber surround, Silicone sealed, glass-reinforced, cast resin enclosure, Environmentally tested to resist long term exposure to the elements, Frequency response: 35Hz-150Hz, 21 W x 18 1/2 H x 13 3/4" D, Sandstone, 3-year warranty