Over Voltage fault (A4098) fix?

[Axel]

Of those who'd experienced the over-voltage fault, has anyone been able to fix it through using voltage regulators (or such)?

I can’t help you with your question about voltage regulators etc., but I can tell you that I used to get the over voltage warning after Micro-second dropouts of either channel.  Since the CI upgrade, I haven’t experienced it once. I’ve just looked on my display screen to confirm this: un-plugging the power cable from the Devialet clears the fault, and mine haven’t been unplugged since the CI upgrade.