The JBL VRX918SWH 18  High-Powered Flying Subwoofer (White) can be placed on the ground or used in a suspended orientation. It features a 2268H neodymium magnet and a patented Differential Drive 18 woofer.

The entire unit is housed in a sturdy wood enclosure covered by a rugged DuraFlex finish. A large port area is designed to give you reduced distortion and optimal sound. It also features a 20 mm threaded pole socket for solid, secure satellite speaker mounting. 

The VRX918S was designed specifically for use in arrays with the VRX932LA Line Array Speaker.