Pa speaker pa monitor principle active power 180 watt woofer size 12 inch design 2 way system construction full range speakers hf 1x 1 lf 1x 12 dimensions 370 x 590 x 290 mm weight 112 kg power rating rms 90 watts noise level 115 db frequency response 50 20000 hz sensitivity 94 dbmw connections microphoneline bluetooth usb sd card types of connection usb rcacinch stereo 6 35mm trs 3 5mm trs case material bass reflex housing ma