Pa speaker active speaker pa monitor series electro voice zlx principle active power 1 000 watt woofer size 12 inch design 2 way system speakers lf 1x 12 hf 1x 15 dimensions 356 x 610 x 356 mm weight 156 kg noise level 126 db frequency response 65 18000 hz dispersion 90 h x 60 v connections microphoneline link thru types of connection xlr 3 5mm trs housing material plastic amplifier type class d