You don't give us enough info to give informed advice. What kind of integrated amp? What comprises the rest of your system? Power cords, like all wires & cords, are system dependent and there's no "one size fits all" answer. If your system is of sufficient quality and resolution, you may gain great advantage with a new power cord. You might also find it a waste of money in the context of a different kind of system. For what it's worth, I found power cords to offer more bang for the buck improvement than any other cable upgrade. But that's just been my experience. Obviously, others have had the opposite experience.