A Brand New Aftermarket Titanium Diaphragm Replacement for  NEXO NH75R, NH75K, NH75RK, ALPHA E NH82B, PS15, 8 Ohms

Voice Coil Diameter :74.4mm

Impedance :8 Ohm

Dome Height : 13.5mm 

Outer Ring Diameter : 101.5mm 

The Center Distance Of The Two Post Terminals : 120.0mm