Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 18" live sound speakers manufacturers and suppliers,Website:://.soundsingpro.com, 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