Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 15"lf driver manufacturers and suppliers, 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