Pa speaker active speaker pa monitor series behringer eurolive principle active power 1 000 watt woofer size 12 inch design 2 way system construction wireless speakers lf 1x 12 hf 1x 1 dimensions 568 x 342 x 270 mm weight 123 kg frequency response 50 20000 hz connections bluetooth microphoneline usb types of connection 6 35mm trs xlr usb amplifier type class d crossover frequency 2800 hz