A top of the line Triode Wire Labs power cord. Both the Silver Statement and The Obsession come from the same Statement Series line and I think the cord itself may be the same, except for difference in the end connectors which probably explains the $200 cost difference. From my experience with the TWL cords, The Silver Statement has the quietest noise floor with natural midrange texture and gobs of bass than the rest of the TWL line. With super quiet noise floor, it expands the soundstage beyond the borders of your speakers, and your jaw just drops. The sound just floated in the air, borderless... you have to experience it to believe it.