Anytime you switch the power on/off there is a surge, this is why lightbulbs quite often POP when the light switch is flipped. After a brown/blackout the same applies, but lots of equipment turn off when the power is cut and won't turn back on till the user flips the switch minimizing the surge to what can normally be expected on daily use and not the higher surge sometimes associated with the power lines being re-energized.
Interesting. So would our AVRs in standby be open to surge damage when power lines are re-energized? Since my Denon 1909 has a manual toggle on/off main power button, it would re-energize when power was restored. Could that be a problem?
