This is an OEM diaphragm (not aftermarket) that is made by Cerwin Vega for the COMP00008 driver. CV diaphragm part # is DIAP00005.
Specifications:
- Overall Diaphragm Diameter: 3.25″ (82.55mm)
- Voice Coil Diameter: 1.35″ (34.4mm)
- Nominal Impedance: 8 ohms
- DCR: 6.3 ohms