Power cord replacement suggestions


If i were to delve into the fanatic behavior of replacing power cords, is there some concensus on where the most impact would be gained, whether on source, pre, or amp, or is it just different for every system and need to experiment. Thanks for any advice.

128x128droleg
And thanks Lak. I realize thet on a 20 a plug, one of the prongs is perpendicular to the other, but i wasn't sure if they used different sized conductors to handle the higher current. So much to learn. Enjoy your evening.
eBay search 3 prong power cord.   I got one for $.06 cents shipped, very nice.
eBay search 3 prong power cord.   I got one for $.06 cents shipped, very nice.