Feature●Impedance: 16 ohms●Voice Coil Diameter: 1.35" (34.4mm)●Overall Diaphragm Diameter: 2.375" (60mm)●This Is A Brand New High Quality Aftermarket Diaphragm.Description This Is A Brand New Aftermarket Diaphragm For Samson HF80-16 Driver. This Is Also Use On Many Drivers & Tweeters (Voice Coil) 34.4 mm or 1.35"