My brother is using an isolation transformer on all of his line level components to great effect. Can't really do this with a good sized amp though, as most "reasonably priced" isolation transformers are relatively low current.
As to MOV's absorbing or shunting spikes, that is partially true. You need to keep in mind that MOV's definitely DO "burn out" or lose efficiency over time. The higher the voltage surge or spike and the more often that these devices have to deal with that type of situation, the more likely they are to fail. Just because it is plugged into a "surge protector" does NOT mean that it is "fully" protected. Sean
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