I recently experienced a left side driver failure on my clears. Contacted focal support for a quote on out of warranty repair since they wont sell me the part. They were pretty quick to respond but quoted me $800 for repair. Stating that the drivers come in a pair and they have to replace both.
Anywho, i just decided to open it up and take a looksy. Probed around with my multimeter and found that theres no continuity to the voice coil. Took a good look and it appeared to be ok, coil was intact, no breaks, solder joint looked good.
I thought I'd desolder the voice coil joints and resolder with mundorf silver gold solder to make sure it wasnt the joint. While desoldering, i noticed the quality of the solder on that joint was not good. Removed all of it and carefully resoldered the voice coil with mundorf.
Driver worked fine afterwards but then i noticed it was clipping on the side i just fixed. So i opened up the headphone again
. Plugged in the headphones while adjusting the magnet and the clipping disappeared.
It seems that even though the magnet is circular, it may need to be orientated in a specific position, either that or the way it was seated over the exposed voice coil wires was causing the clipping. I'm not sure which but its definitely one of the two because I'm not getting any clipping anymore.