speaker R218 dual 18 inch subwoofer

R218 dual 18 inch subwoofer 
LF driver :2x18"
Sensitivity 105dB
Rated power:1600w RMS, peak: 3200W
Normal impendance: 4ohm
Frequency response 45Hz-280Hz(+/-3dB)
Connectors 2x NL4 speakon N.W. 81.5kg
Dimension H496xW1326xD723