Just received a pair of 030 mid domes wich should be identical to the 095 used in the XPL A serie.
Testing them revealed that one of them was very low on volume compared to the other one. searching for the cause revealed lots of corrosion, both on the magnet system and the connection betwin the voice coil leads and the small connectors which the internal x-over was connected too. (the 095 does probably have just wires from the connectors on the rear chamber to these) I was able to clean up the worst and resolder the connection, but another problem was also discovered.
On the magnet system there is a foam ring pretty close to the voicecoil gap, the diamond patterned surround on the dome rests on this foam ring, wich probably provide some damping to the moving assembly. some may already have guessed what the problem with this foam ring is. it falls apart, its rotten, crumbles into sticky dust if touched.
I just reassembled the parts without messing with the foam, its mostly intact, and this dome now have the same output level as the other, but i fear that this rotten foam has some impact on the specs, and migh even end up as dust in the gap.
IF the 093 and 095 domes have this foam ring, and i belive they have, this means that most XPL owners sooner or later will have the same problem.
So if anyone have a solution or know for sure if this foam ring can be removed without negative impact, please speak out.