Ozfly:
One of the electrical engineers who frequent our site may shoot me down on this, but I honestly don't think it will make any difference -- from an audibility standpoint -- whether you run twisted or parallel power cords from the panel to the outlet. Please note that I am not saying that there aren't valid electrical transmission issues that should be considered -- only that they should not be audible.
The electric current that will be coming out of the wall precedes any signal, and the AC power is going to be reduced in voltage by the transformer in your power amp, and then rectified from AC to DC current. Hence, concerns like inductance and capacitance should not be of any concern with your house wiring. Once the audio signal leaves the amp on its way to the speakers, however, the behavior of the speaker wiring with regard to capacitance, inductance, and characteristic impedance can be a real issue, which is one of the reasons there are so many approaches to speaker cable design.
One of the electrical engineers who frequent our site may shoot me down on this, but I honestly don't think it will make any difference -- from an audibility standpoint -- whether you run twisted or parallel power cords from the panel to the outlet. Please note that I am not saying that there aren't valid electrical transmission issues that should be considered -- only that they should not be audible.
The electric current that will be coming out of the wall precedes any signal, and the AC power is going to be reduced in voltage by the transformer in your power amp, and then rectified from AC to DC current. Hence, concerns like inductance and capacitance should not be of any concern with your house wiring. Once the audio signal leaves the amp on its way to the speakers, however, the behavior of the speaker wiring with regard to capacitance, inductance, and characteristic impedance can be a real issue, which is one of the reasons there are so many approaches to speaker cable design.