Model:S-218-4       
Type                      Dual 18” Sub-woofer loudspeaker system
Frequency                  30Hz--260Hz±3dB
Power handing          2400W  program
Drivers                      2X18"woofer                                
Sensitivity(1w/1m)          116dB
Nominal impedance        4 ohm
Dispersion(-6db)          0°
Connectors                   2xNeutrik NL 4
Dimensions (WxHxD)       1068mmX561mmX780mm
Net weight               89 KG