Voodoo/Tsunami Power Cords

For the sake of trying to keep this simlple here's what happened: I made a cable switch. I removed the Tsumani from the cd player and put in in the amp, and took the Voodoo from the amp and put it into the cd player. The difference in the sound is really astounding (for the better). My question is this: what cable change was most likely to have caused this effect? Any help/answers would be most welcome. (oh well... cd player/Simaudio Moon Nova; amp/Gryphon Callisto 2100)