I’ve just found a few used AC-10 (and AC-12) cords at a very good price from a PS Audio dealer. One of the AC-10’s is missing the ground pin. It’s the screw-in type and I plan to ask PS Audio for a replacement. But I was wondering about the dealer’s statement that “there’s lots of manufacturers of electronics that float the ground.” Is that true? I haven’t come across any that I know of over the past several years and what I’ve read suggests that lifting the ground is not a good idea.
The subject came up when I mentioned that I’ve needed to use a couple of Ebtech Hum X ground line voltage filters (“ground loop eliminators”) in my desktop audio system, one at the wall receptacle going to the HiDiamond power conditioner, and the other from there to the computer. Otherwise, the noise is loud and continuous from the moment of booting. He suggested that I might try without the ground pin. Fortunately, there’s been no such problem with my living room system. Thanks,