pro speaker/hot sale /powered speaker 18" subwoofer,UKM's cone ... and spider,600W-1200W,99dB,40-3K Hz,125ounce magnet pro speaker/hot sale /powered speaker Specifications:Nominal diameter18inch Nominal impedance8 ... .3mm-8holesCut out diameter422mmDepth187 mmNet weight13 kgX max±8.25mm pro speaker