"Voodoo" indeed. Voodoo Cable states that most audio grade receptacles do not have an isolated ground as the Voodoo Hubbell does, which is correct. What they fail to mention is, an IG receptacle in only of benefit when installed in a true isolated ground circuit (in metal conduit, with separate insulated ground conductor between the panelboard and receptacle ground pin). The receptacle box, mounting strap and conduit are insulated from the ground conductor. A receptacle with isolated ground installed in a circuit with non-metallic cable (12/2 Romex with ground) provides no benefit over a standard receptacle.