VRS33 Series subwoofer 1*18''+1*15''

VRS33 VERA  subwoofer ,high power bass

Components: 1 * 18" front / 1* 15" rear 
Frequency Response: 33 - 120Hz(±3dB)
Rated Power(RMS)/program/peak: 1400W/2800W/4200W
Impedance: 8 Ω
Sensitivity(1W/1m)db: 99dB (1w@1m)
Maximum Continuous SPL: 132dB (Cmax@1m)
Maximum Peak SPL: 134dB (Pmax@1m)
Material: 18mm plywood
Connectors: SPEAKON NL4×2
Dimensions: L700×W800×H606mm
Net Weight(kg): 67.2kg

The VRS33 special feature is an 18" speaker at the front and a 15" speaker at the back. 

With bi-amp operation and the respective presets, different dispersion characteristics can be produced. The cardioid mode is optimised for maximum attenuation of the rearward sound dispersion, achieving attenuation greater than 15 dB over the entire bass spectrum. 
The end-fire mode is optimised for maximum sound pressure at the front with simultaneous partial reduction at the rear. Because of their directionality basses sound much more concrete and musical especially in venues with a lot of reverb. And the musicians on the stage as well as neighbours behind the stage are spared off the effects of excessive bass levels. Of course, the VRS33 can be used in all sorts of configurations.It is no normal subwoofer. It is literally pointing the way.
VRS33 18" and 15" dual drivers Subwoofer Speaker