Sean......the Cable Cooker delivers a steady state, multiplex signal measuring just a hair under 2 amps of current (for the speaker cable and power cable circuit), in addition to a swept square wave. I know you've expressed your skepticism before, but end-users, including dealers and cable manufacturers, can testify to its efficacy.
Power cables may also be daisy-chained without any practical limit and without any signal degradation. A major audiophile cable manufacturer, for instance, conditions 12 or 13 power cables at a time, in addition to their interconnects and speaker cables.
I hope this information satisfies your question.
alan m. kafton