Maybe this thread should be in "Technical", but that look more like an information section rather than a place for a technical question.
Anyway, bought a set of mint looking JBL TL260 limited edition (60th anniversary) speakers. The only problem is that the midrange speaker in one of them is not sounding like it should. Can feel no vibration from it when holding a finger on the membrane, even though it has sound coming from it, but very little. On the other cabinet the midrange membrane vibrate well and sound good.
So the first thing I did was changing the midrange speakers over from one cabinet to the other. The result is that "the bad speaker" comes to life like normal in the other cabinet. So the speaker itself is no the problem.
My thoughts now is that the problem is the crossover. The soldering looks good on it, so I am thinking a bad capacitor is to blame. The yellow and yellow/black cable is to the midrange. There is a 100v 14uF capacitor in connection to it there on the board.
My crappy multimeter can't measure capacitance, but if it could I guess I will need to desolder the cap to get it out of the circuit to check if it is good or not? These are JBL's own caps - called "Sounder", but I guess any correct spec hifi grade cap would do as a replacement? Or would it be better to put a quality Nichicon or Elna cap in there?