DVA S20DP Subwoofer, 2 x 18" Bassreflex Featuring a dual 18" subwoofer pairing in a bass reflex housing, the DVA S20 delivers powerful performance, rendering frequencies as low as 25 hertz assertively and with impressive authority. It is the perfect sub-bass provider for DVA S10/T4 systems and an excellent complement to DVA T4 mid-/high-range units in stacked arrays. Thanks to the integrated Quick-Release-Pins, both DRK-10 and DRK-20 frames can be easily mounted to set up a ground stacked system.Made of sturdy birch multiplex covered in robust black textured lacquer, the subwoofer housing is fronted with a rugged speaker grille. The enclosure is easy to tote with its comfortable carrying handles. Specifications: Speaker Type: Active Bassreflex Subwoofer Acoustical data Frequency Response [+/- 3dB]: 35 - 120 Hz Max SPL: 138 dB Directivity: Omnidirectional, Cardiod Option with SDD Module LF: 2x18 " Voice Coil LF: 4 " Amplifier Amp Technology: Digipro® Amp Class: Class D LF Amp: 2000 W RMS Cooling: Convection Processor Controller: Analog Limiter: RMS, Peak, Thermal Delay Option: SDD Module Crossover Frequency LF-MF: 90, 120 Hz LF-Xover out slope: 24 dB/Octave Input Mechanics Housing: Multiplex birch plywood Housing Design: Rectangular Handles: 4x Per Side Accessory: Wheels 100mm, Dust Cover Rigging Points: 2xPick Points on top to fix DRK10/20 rigging frames Width: 1100 mm (44 in) Height: 580 mm (23.2 in) Depth: 720 mm (28.8 in) Weight: 84 kg (185.19 lbs)