Soundsing Audio Manufacturing Co.,Ltd is one of the leading China titanium diaphragm manufacturers and suppliers, 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