Ah yes, I'm sure power cords make a difference. The electricity running all the way from the source to your house, through your fuse box and then out of it via either 12 or 14 ga romex to your plug. And then into your magical power cord and the skies open up! Hallelujah! The music is heaven! That last 3 feet of power cord totally transformed my system! Do you really think we're that gullible?