Soundsing Audio Manufacturing Co.,Ltd is one of the leading China polyimide and titanium aftermarket diaphragm manufacturers and suppliers, providing with horn driver voice coil wholesale, welcome to import high quality products from our factory. SDM7502 is a 3" VC Polyimide/Titanium aftermarket diaphragm. Its  fit  for RCF N850 driver. We have many models of diaphragms, like titanium with round wire, and flat wire, and without push terminals and so on. Products specification Diaphragm material: Polyimide/Titanium Voice Coil Diameter:3" Voice Coil Wire Material: CCAR Bobbin Material: Kapton Impedance: 8 Ohm Packing Information: Each is packed in transparent plastic cover 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 OEM, ODM Service: Available