Pa sound system principle active power 230 watt woofer size 8 inch design 3 way system speaker lf 1x 8 dimensions sub 300 x 390 x 420 mm sat 130 x 130 x 115 mm weight 10 kg noise level 118 db frequency response 44 190 20000 hz dispersion 60h x 40v connections microphoneline stereo link types of connection rcacinch stereo 3 5mm trs case material bass reflex housing material plastic amplifier type class d crossover frequency 190