This Is A Replacement Diaphragm @ 8 ohm For CERVIN VEGA Intense 152, 252, INT152, INT252, CD-34A. Please Look And Confirm The Diaphragm You Are Ordering Matches The Pictures Above & The Specs Below Cervin Vega Uses 2 Different Drivers. Specs: Overall Diaphragm Diameter: 3.15" (80mm) Voice Coil Diameter: 1 35" (34mm Mounting Holes: 2.87" (72.9mm) Center To Center Nominal Impedance: 8 ohms