Active speaker pa speaker series img stage line pak principle active power 500 watt woofer size 10 inch design 2 way system construction full range speakers hf 1x lf 1x 10 dimensions 340 x 560 x 290 mm weight 129 kg power rating rms 300 watts noise level 121 db frequency response 55 20000 hz sensitivity 97 dbmw connections microphoneline link thru types of connection xlr6 35mm trs combo xlr housing material plastic amplifier type