Feature●Overall Frame Diaphragm Diameter: 2.4" (63.4mm)●Voice Coil Diameter: 1.9" (50mm)●Diaphragm Material: Aluminium Alloy Dome with Vented Mylar Surround●Nominal Impedance: 12 ohmsDescription NEW ! Compatible Aftermarket Replacement Diaphragm for Meyer MS-1010L 12 Ohms