Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 15"lf driver manufacturers and suppliers,Website:://.soundsingpro.com, providing with 15"low frequency speaker driver wholesale, welcome to import high quality products from our factory. SD15P400 is a high quality 15"low frequency speaker driver. Thick washer and T-yoke, inside and outside wire voice coil, dual dampers and non press cone, all materials are perfect to be made  a high power, excellent sound. Products specification   Size:15” Rated Power: 800W Peak Power:1600W Impedance:8 Ohm DC Impedance: 4.6 Ohm Sensitivity:98dB Frequency Response:45hz-1.5khz Voice Coil Diameter: 4 Inch Voice Coil Wire Material: Copper Bobbin Material: Fiber Glass Voice Coil Layers: Inside and Ourside Dampers: dual Cone: paper Magnet Size:123 OZ Mounting Detail: Outer diameter:392mm/15” Hole Cut Out diameter:335mm/13.18” Depth:163mm/6.41” Packing Information: 1 speaker one carton, two brown inner boxes packed into one brown outer box Carton Size: 42.5*42.5*41CM 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