1pcs Aftermarket Diaphragm For EV Electro Voice nd2 16 Ohm Aluminium Flat wire

Specs:

Overall Diameter: 3.125″ ( 79.38mm)

Voice Coil Diameter: 2″ ( 50.80mm) 

Diaphragm Material: Titanium

Nominal Impedance: 16 ohms

Here is a list of the driver part #’s:

ND2-16 and ND2S-16