Features and applications:*Integrated formation bugle*Easy and safe suspension device*Fast floor stacking or mounting*Ergonomic knob*Built-in DSP audio chip*Multi-layer birch ply*Enhanced steel grill,Website: , acoustic ventilation filter screen*Suitable for using in stadium, stage, multi-function hall, auditorium  hall, and other movable performance avenuesSpecifications：Frequency Range (+/-3 dB): 40 Hz-300HzSensitivity: 99dBMaximum Peak SPL:126dBConfigurations：LF1x 18"Nominal Impedance: 8ΩPower Handling: 600WProduct dimensions(WxDxH): 752X600X520MMN.W: 73KGPower: AC180-240V /50-60HzOutput power:2×400W+1×900W/8ΩFrequency response：20Hz～20KHz(+0.1dB/-3dB)Total harmonic distortion：＜0.05%@8 ohm1KHzInput impedance：20K ohmInput sensitivity：1.1VSignal/noise ratio：101dB