The VT4880 Dual 18 inch Subwoofer Line Array Element is designed to deliver high quality sound reinforcement of sub-low frequencies for live music and a variety of applications. Typical uses include concert audio and multi-media presentations of all types. The VT4880 is a rugged, lightweight centrally vented enclosure housing two 18 inch woofers. These advanced components, each fitted with dual voice coils, provide the highest output power-to-weight ratio of any speaker system in its class. The VT4880 can be oriented vertically in suspended arrays or it can be groundstacked in horizontal arrays.