quantity:1 piece.

voice coil internal diameter:44.4mm with titanium dome.

impedance:8 ohm.

Winding materials:flat aluminum line

Here is a list of the driver part:
2418, 2418-1, 2418-8, 2418H, 2418-H, 2418H-8, 2418H-1

Here is the list of some of the cabinet model:
EON 15, EON POWER15, EON POWER15-G2, EON15P-1/230 
MR Series:    MR902,MR905,MR922, MR925, MR926, MR935, MR938