QSC E118SW-BK 
The QSC E118SW PA subwoofer delivers top-tier sound reproduction. This high-output sub comes loaded with an 18-inch die-cast aluminum frame woofer and delivers abundant bass, thanks to frequency-shading topology. The E118SW features a rugged plywood enclosure with a tour-grade textured paint finish, along with a foam-lined, perforated steel grill. Four side-mounted handles make for easy transportation, while an M20 threaded pole-mount socket makes installation a breeze. If you need a high-powered multipurpose subwoofer, the QSC E118SW fits the bill.
 
QSC E118SW Features:
High-output subwoofer with 18" die-cast aluminum frame woofer
Frequency-shading topology delivers abundant bass
Pairs well with GXD and PLD power amplifiers
Match with a TouchMix digital mixer to benefit from onboard DSP and factory-tuned presets
Rugged tour-grade textured finish and perforated steel grill
4 side-mounted handles make for easy transportation
M20 threaded pole-mount socket makes installation a breeze (pole included)