SYSTEM TYPE : Single 12 inch full frequency speakerFREQUENCY RANGE :20Hz-20kHz(±3dB)FREQUENCY RESPONSE :35Hz-20kHzSENSITIVITY: 99dB SPL 1w/1m NOMINAL IMPEDANCE :8 ohms /4ohmsPEAK POWER: 4000 WattMAXIMUM SPL @ 1 m :127 dB SPL,132dB SPL Peak HIGH FREQUENCY DRIVER: ∅44mm voice coilLOW FREQUENCY DRIVER: ∅170mm magnet/∅65mm voice coil COVERAGE PATTERN :110°x40°INPUT CONNECTORS : Double Neutrik® NL4MPDIMENSIONS (HxWxD): 25.6 inches x 15.7 inches x 14.9 inchesNET WEIGHT (each) :20Kg/44.1lbs