chunkee

i have a set of focal utopia 165w componants in my scooby but one of the mids started to cut out, i presumed it was i bad connection because when i whacked the door card it tended to work again for a bit.
anyway it started to crackle today so i decided to find the fault and repair it, but it turns out it seems to be the voice coil, can these be repaired? if so where?

i really don't wan't to have to buy another setas they were pretty expensive.

please help

cheers

steve