Sorry in advance @kdoerner but due to the natural progression of conversations as it were...
If we don't have protection, many Hi-Fi's are going to be fried while we sleep.
All the more reason to consider adding a quality power device to your system.
I would be worried about the other expensive appliances in the house also. The best thing someone can do is surge protect the whole house first, then look at individual electrical components in the home. This is the level 2 house surge protector I have- I also use a Puritan conditioner at the stereo and (of course) don't have any level 3 Leviton protection outlets in my hifi room.