Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 18"neodymium speaker manufacturers and suppliers,Website:://.soundsingpro.com, providing with 18" neo loudspeaker wholesale, welcome to import high quality products from our factory. SD18N451 , a 18” neo Loudspeaker with 4.5” inside and out side wire voice coil. It has good performance on bass part. Very good for subwoofer in line array . Products specification   Size:18” Rated Power: 120W Peak Power: 2400W Impedance:8 Ohm DC Impedance: 5Ohm Sensitivity:98dB Frequency Response:30hz-800khz Voice Coil Diameter: 4.5 Inch Voice Coil Wire Material: Copper Bobbin Material: Fiber Glass Voice Coil Layers: inside and outside Dampers: polycotton Cone: paper Magnet Size:103mm Mounting Detail: Outer diameter:468mm/18” Hole Cut Out diameter:432mm/17” Depth:215mm/8.46” 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