With Atlas' unique construction and materials, Atlas power cords are the finest available. Our research has proven that the size of the conductor together with the type of dielectric are critical to the performance. We recommend that you experiment when evaluating power cords; that is to try them and then remove them from the system and replace them with your originals. It's likely with the removal of the Atlas cords, the system will have lost authority and if that loss convinces, then the need for Atlas power cords is obvious. In some circumstances the inclusion of a cord will make an immediate and clear improvement. What is obvious, is that an audition is a prerequsite to an investment in power cords because local circumstances and the choice of matching equipment can cause differences. Your Atlas dealer will be able to help, seek his opinion.