The average consumer does not have “clean” power supplied to their home and cannot readily measure the quality. Household electronics, air conditioners, lighting and other appliances add noise to the power traversing the home. This high frequency noise is not typically filtered by high end audio equipment. The power cable can be regarded, as the first connection to the power grid for the components of an audio system and the performance of this connection will influence the performance of the component. Our testing indicates using a good power cord enhances the performance of all electronic equipment tested, including audio, audio/visual, computer, and digital projector.