Pa sound system principle active power 700 watt woofer size 12 inch design 2 way system speakers hf 2x 1 lf 2x 12 dimensions 1200 x 380 x 380 mm weight 29 kg power rating rms 350 watts noise level 122 db impedance 8 ohm connections microphone type of connection rcacinch stereo case material bass reflex housing material plastic