That is the $64,000 question
If it were my unit then I probably would replace all the caps, along with one or two other parts as well.
They will become obvious once you have the unit apart.
Just look for the evidence of heat spots in the glue.
However in my case, both of mine had already failed, so that "maintenance" wasn't required.
Judging from the amount of units that I have noticed satelite speaker failure on.I think there is the remote possibility that a fault in the PSU could cause speaker failure. The voltage rating of surface mount capacitors in the satelite speaker enclosures is quite marginal at 25V.
So it would not take much of an overvoltage condition to cause damage here.
I have never had a fault with the PSU causing overvoltage however.
Always the 19V rail has been spot on.
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