I've heard that the whole house surge protection is actually more effective. Google brands such as Surgex (spelling) for more info. Quite a huge thread about a year ago in the newsgroup rec.audio.pro on these things. 73 de nf5b Richard Webb Electric Spider Productions "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." --- Benjamin Franklin, NOvember 1755 from the Historical review of Pennsylvania