Geoff, you once again mischaracterize my position on the Hi-Fi tuning fuse. I am agnostic on the claim of improved sound, and have merely alerted tube amp users to what Music Reference's Roger Modjeski has said about their use in any DC circuit. He's agin' it ;-). As I said before, his full thoughts can be found on the now-dormant AudioCircle Music Reference Forum, for those who wish to read them. Got it now? ;-)