Representing the next generation of its groundbreaking and industry-standard EON(R) series portable loudspeakers, today JBL is introducing the EON500 series. The unveiling of the EON500 series self-powered and lightweight speakers immediately raises the bar in the category of molded powered loudspeakers in all aspects, from industrial design to sonic performance, integrated utility and portability. The EON518S is an 18-inch, direct radiating, high performance powered compact subwoofer system. Designed to extend low frequency performance of any EON system. It also offers the convenience of an integrated crossover and stereo loop-thru capability. The EON518S is comprised of a 460 mm (18 inch) Differential Drive(R) woofer driven by a 500 watt Class-D digital amplifier. Features 500 watt High-Performance Powered Subwoofer System True portability weighing only 29.5 kg (65 lb) Compact enclosure Designed handles with comfort rubber grips for easy transport 18 in. Differential Drive(R) 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 TECHNICAL DESCRIPTION System Power Rating: 500 W continuous, 1000 W peak Frequency Range (-10 dB): 36 Hz - 130 Hz Dimensions (H x W x D): 617 x 569 x 652 mm (24.3 x 22.4 x 25.7 in) Frequency Response (+/-3 dB): 42 Hz - 100 Hz Maximum SPL: 129 dB JBL