Sorry not sure where I should post this!  Mods please move as needed

I have a paid of Kef X300A active speakers, which are fantastic as computer speakers.  However they have a known problem that affects the AirPlay functionality - shortly after powering on they 'click' on-and-off a few times and eventually come up with a red flashing light - meaning no airplay.  USB and phono work perfectly fine.  As I understand it, it's something to do with the caps getting old on the power board?

Anyone here able to fix these?  Obviously prepared to pay!  I am in Auckland.