Features：Small size but tidy and beautifulClean sound can display and restore original voice Easy handling for installation. It may be mounted in wall and can be rotated by different directivity Suitable for a variety of venues like conference  hall, mufti-function hall, coffee bar, shopping mall, class room, church by combined with active subwoofer Specifications：Frequency Range (+/-3 dB)：40Hz-250HzSensitivity ：98dBMaximum Peak SPL： 121dBDriver：LF1x 15"Nominal Impedance ：8ΩPower Handling：450WProduct dimensions(WxDxH)：N.W ：KGPower： AC180-240V /50-60HzOutput Power：2×600W+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