For sale is an aftermarket JBL Replacement Diaphragm. It is a 8 ohm diaphragm. It fits the following JBL compression drivers: 2425H, 2426H & 2427H. You can also use this on JBL "j" tagged drivers to convert your 16 ohm to aN 8 ohm. This voice coil is the aftermarket equivalent to JBL part number D8R2425. I can install it for you for a fee of $10.00.