If you were unlucky enough for a direct hit sadly there is no current tech that can handle such extremes. Aside from unplugging from the wall. As most insurance would also consider that to be an act of God and sadly not covered.

Have you guys seen Danny Richie's{GR Research} you tube vids.

He has a personal setup with everything coming from DC Battery power. Supposed to be unreal. Clean detailed pure music. According to some other reviewers that have heard it. Though he hasn't released so many of the details on you tube. Probably all info of the making of the power supply on his Audio Circle forums.