MartinLogan Prodigy clicking sound

My Prodigy sometimes makes a clicking sound:

MartinLogan Prodigy clicking sound - YouTube

After consulting with ML I replaced the power supply and then the transformer with new replacements and it still didn't completely fix the issue (though it seemed to happen less frequently).

After a few months it largely went away, I may get a few clicks every month or so.

Lately it's starting to happen more frequently again (maybe once a week, and when it happens it does that on and off for minutes).

Any idea what causes that? It's not the panels, those were replaced and I also swapped them between the two speakers and it stayed with the same speaker. Vacuuming didn't help.
 
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Hi...i have working on ML panels for about 20 years..I have seen this before,
It could be one of the 3 wires that runs from the bias boards an step up transfourms, right were these wire connect....
An the 3 wire connectors ends that go to the panels.
I have put tape on each of these connectors.

It seen to do this when there more humidity around.

all just mans findings......good luck
 
Hi tyu,

It makes sense that it's a connection issue, because all the possible part have been replaced with new ones. And I live in Singapore which is VERY humid all year round.

Would it help if I just put some desiccant inside the speaker to reduce internal humidity? If not can you point me which wires to look?

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