3.91” JBL 2446H 2447H 2450H 2451H 2452H  16 ohm Diaphragm  

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Specs :

Overall Diameter: 127 mm  （5 Inch)

Voice Coil Diameter:99.2 mm (3.91 Inch)

Impedance:16 Ohm 

Fit for :

2446, 2446H, 2447H, 2447H, 2450, 2450H, 2451H, 2452H 

Package include :

1 pc  Replacement  Diaphragm