JBL EON518S 500W 18" Powered Subwoofer :
* 500W High-Performance Powered Subwoofer System
* True portability — weighs only 65 lb.
* Compact enclosure
* Designed handles with comfort rubber grips for easy transport
* 18" differential drive low-frequency driver with neodymium magnet for low-distortion and light weight
* Efficient Class-D digital amplifier technology
* Stereo-balanced loop-through outputs
* Integrated and switchable High Pass Filter on loop-through outputs
* Easy "daisy-chain" connections for extending the system
* Polarity reverse selector
* Integrated 36 mm pole mount socket for sub/satellite applications
* Rugged DuraFlex finish