Soundsing Audio Manufacturing Co.,Ltd is one of the leading China titanium diaphragm manufacturers and suppliers,Website:://.soundsingpro.com, providing with high frequency driver diaphragm wholesale, welcome to import high quality products from our factory. SDM1001 is a 4" VC titanium high frequency driver diaphragm. It is suitable for JBL driver. More models are available. Products specification Diaphragm material: Titanium Voice Coil Diameter:4" 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