Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 18" professional audio speakers manufacturers and suppliers,Website:://.soundsingpro.com, providing with speakers professional audio wholesale, welcome to import high quality products from our factory. SD-180016A , 18” Professional Audio Speakers which is recommended to use in a full range cabinets. It has deep and thick bass through use non press woolen materials cone. Products specification   Size:18” Rated Power: 800W Peak Power: 1600W Impedance:8 Ohm DC Impedance: 5Ohm Sensitivity:98dB Frequency Response:30hz-1.6khz Voice Coil Diameter: 4 Inch Voice Coil Wire Material: CCAR Bobbin Material: TIL Voice Coil Layers: 1 layer Dampers: dual Cone: woolen paper Magnet Size:123 OZ Mounting Detail: Outer diameter:474mm/18” Hole Cut Out diameter:428mm/16.85” Depth:209mm/8.22” Packing Information: 1 speaker one carton, two brown inner boxes packed into one brown outer box Carton Size: 49.5*49.5*45.5CM 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