Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 18" live sound speakers manufacturers and suppliers, providing with 18" subwoofer wholesale, welcome to import high quality products from our factory. SD-180030A  is a rms 1200w 18” subwoofer. If 1000w live sound subwoofer  is still not satisfied , you want more durable , more strong bass, this is a very suitable one. Our engineer worked hard on materials and continuous improving quality to final this design of this driver. Full , thick and strong bass is the sport light of this speaker. Products specification   Size:18” Rated Power: 1200W Peak Power:2400W Impedance:8 Ohm DC Impedance: 5.4 Ohm Sensitivity:98dB Frequency Response:35hz-1.3khz Voice Coil Diameter: 5 Inch Voice Coil Wire Material: Copper Bobbin Material: Fiber Glass Voice Coil Layers: inside and outside each 1 layer Dampers: dual Conex Cone: Paper Magnet Size:150.4 OZ Mounting Detail: Outer diameter:465mm/18” Hole Cut Out diameter:424mm/16.69” Depth:210mm/8.26” Packing Information: 1pc one carton, brown inner and outer box Carton Size: 49.5*49.5*25CM Other Information Place of Original: Guangzhou, China Payment Terms: T/T, Western Union, Money Gram Port of Delivery: Huangpu, Guangzhou, China Production Lead Time:30days after receive 30% T/T