This is a high quality 8 ohm aftermarket diaphragm that fits many B&C drivers that are used in EAW speaker cabinets.
Diaphragm Horn Tweeter for EAW KF 850, LA 212, LA 325, MC 4953, MC 4973, - 8 ohm
Specs:
Overall Diameter: 4.31" (109.5 mm)
Voice Coil Diameter: 2.93" (74.46 mm)
Diaphragm Material: Titanium
Diaphragm Height: 14 mm
Diaphragm Thickness: .05 mm
Nominal Impedance: 8 ohms