JL Fathom repair

Duck tape? Seriously, won't JL send you a driver? Shouldn't be that hard to swap in.

I can only encourage you to do it the right way and send it back to JL. Their service program is second to none. For a reasonable flat fee they go through it and replace anything and everything that is possibly suspect or is in need of replacement. As you are probably aware, first generation F series subs have capacitors that are prone to failure and these also get replaced with updated caps during the repair. Communication was excellent, service turnaround time was quick. 

I have found JL to have excellent customer service.

dweller - the way the sub is made you can't just pull the driver out. (it's not your standard 4 screws in the front of the driver plate kind of build). At least that's what Randy Wagner at JL told me.

to scottfields: seriously consider sending it in. you pay freight one way (they pay the return) and for a flat $300 they will upgrade any other components as well that need repair. Mine made a popping sound at high levels so they replaced some caps and chips in the amp, and I have never been happier.

That is generous to do a flat rate with shipping for only $300 ....a lot of that money goes toward shipping I'm sure.