The AC-9SE is definitely the real deal, IMHO. I had wired my amps and regenerating power conditioner -- PS Audio P10 -- with the earlier AC-9 and tried one SE version (on the P10) just to see if I could tell the difference. There was enough that I replaced all the AC-9s.
I'm assuming everyone knows not to use the fire-hose AC-9/SE PCs on anything BUT amps, as the manufacturer advises. The thinner AC-14SE power cords work a lot better on preamps and source gear, again IMHO.
I'm assuming everyone knows not to use the fire-hose AC-9/SE PCs on anything BUT amps, as the manufacturer advises. The thinner AC-14SE power cords work a lot better on preamps and source gear, again IMHO.