The DVA KS10 from dB Technologies is a versatile active subwoofer that can be used as a compact PA system, groundstacked, or flown using optional flyware (sold separately). This semi horn loaded subwoofer features a single 18" woofer driven by a Class-D Digipro®G3 power amp that delivers 2000W Peak and reaches 134dB SPL. Plus, the stereo input/output balanced preamp offers maximum versatitlity.