rcfun33 and Chinook9: Electricity runs in a circuit through each transformer. So the current produced by a power plant never gets out of their yard! It just circulates through the stators and the primary of the first step up transformer. The magnetic field produced moves electrons in the secondary part of the transformer. Out it goes to the next primary.
Miles away, at your house, it (electricity) circulates through the secondary winding in the pole transformer( or on ground transformer), through each of your audio components and appliances.
So there's not a big cord miles long from the power plant to your house. Even if there was, the power cord would still make a difference in sound !
So please don't claim "physics".
FYI: There is also specialty in wall cable for A/V systems and breaker panels. These are far more involving than just trying a cord.
Miles away, at your house, it (electricity) circulates through the secondary winding in the pole transformer( or on ground transformer), through each of your audio components and appliances.
So there's not a big cord miles long from the power plant to your house. Even if there was, the power cord would still make a difference in sound !
So please don't claim "physics".
FYI: There is also specialty in wall cable for A/V systems and breaker panels. These are far more involving than just trying a cord.