For JBL 2425, 2426, 2427 and 2420 Compression Driver
2PCS
Specs:
Overall Diaphragm Diameter: 2 15/16" (74mm)
Voice Coil Diameter: 1 3/4" (44mm
Mounting Holes: 2 1/4" (57mm) Center To Center
Nominal Impedance: 16 ohms