I have one hooked up to my breaker box. Easy to install, that's a plus. I can't say I noticed any auditory difference. I'm glad to have the whole house surge protection, but I do note that they don't offer a guarantee like other surge protection systems. That kinda makes me wonder. The other night I think I got some DC on my electrical lines, and I don't think it filters out DC.
I'd like to here other's opinions too.
I'd like to here other's opinions too.