Most if not all of us who own vintage Paradigms know that tweeter failure is more a matter of when than if. To repair them, really it is as easy as sending Paradigm an email or placing a call and ordering replacement tweeter diaphragms, then installing them.
When it comes time to replace the diaphragm yourself, I've looked through the series of tubes that is the Internets, many assurances are given that it is an easy process, but next to no visual aids. I wanted to highlight how easy it really is with this step-by-step tutorial.
Below is how to replace a Paradigm tweeter diaphragm (my Monitor 3v2 and 9SE MKII are the guinea pigs). The Monitor 3v2 tweeter is an in-house Paradigm tweeter, and the 9SE MKII is a Vifa tweeter, but both share the same essential design components.
-Philips head screwdriver (medium and small tip)
-Torx screwdriver for the Monitor (unsure of exact size)
-Replacement ferrofluid (http://www.parts-express.com/ferrofl...er-vc--340-540
Replacement diaphragm: Should arrive in a box like this.
Start by removing the tweeter with housing from the speaker. It is held in by 4 phillips head screws. Once out, you will disconnect the two speaker leads (Green (-) and Blue (+)).
Then, remove housing from tweeter. The Vifa uses hex screws, the Monitor uses torx screws. The old diaphragm will lift straight up and out of the voice coil cavity.
Monitor 3v2 Paradigm tweeter:
Ew old bad diaphragms:
Note the cloth dome under the diaphragm on the Vifa tweeter:
The Vifa dome may have ferrofluid that has leaked onto it. That's ok. Inspect for loose hairs and trim with the tweezers.
Now, inspect for debris from the old voice coils or other things in the voice coil cavity. This is where the ferrofluid goes. I got excited at this stage and forgot to take pictures, I apologize. If you notice debris or just want to replace the ferrofluid, follow the instructions that came in the package from Parts-Express. At first, I didn't notice some debris that was in my Vifa tweeter, and noticed scratchiness when it was back in. After taking it back out and cleaning / replacing the ferrofluid, no more scratchiness.
Now, look at how fancy and new your new diaphragms look. (I transferred the little plastic sheet from my old Vifa to the new one, not sure if necessary, but they probably put it there for a reason?)
Now, put the new diaphragm on. Start by lining up the holes with the bosses on the magnet, and it will lower right into place. God, this picture is horrible, sorry.
Now, re-assemble, tightening the bolts snugly, and reverse the removal steps to put back into cabinets. Ta-da! You now have new working tweeters. Congrats!
(Forgive the clutter, we just moved in!)
Hope that helps you guys who are considering doing this yourselves. In hindsight I should have taken more pictures, especially of the ferrofluid replacement. I apologize!