JBL PRX418S 1600W 18 Inch Subwoofer

Full Product Description (From the manufacturer)

The JBL PRX418S is an eighteen-inch subwoofer which, when combined with JBL's two-way models, provides a sub/sat system capable of generating 135 dB of full-range, high-quality audio. PRX400 passive speakers were designed to provide the sensitivity, frequency response and power handling needed to address a multitude of demanding audio environments while still being reasonably priced