How to Refoam your Woofer

Step 7 Shim Up the Voice Coil

Your kit came with some strips of paper to hold the voice coil in place. This allows the voice coil to be locked into place while you are gluing the surrounds on. Do not forget this step or you will glue the surrounds on with uneven tension. This will cause the voice coil to abrade away against the magnet. Eventually it will short and your speaker will be dead. Don't kill speakers. That's bad.

Keep putting the shims around and around like a the petals of a flower until you can't get any more to go in. They go in the crack between the voice coil and the magnet plinth.