I have a TC Electronic BH 250. A few days ago we had an electrical problem on the power grid and the voltage went up to almost 400 volts for about 2 hours. (I live in Africa in case you wonder.....) Every single light and appliance in the house got fried. My amp was plugged in but not running when this happened, however, since that day it doesn't work anymore, when i switch it on nothing happens. Is it possible that the amp got damaged even though it was not running at the time?