WHAT IS A POWER CONDITIONER AND WHY IS IT NECESSARY? For some, a power conditioner is merely a device that provides enough outlets for the entire audio/video system while also protecting the connected devices from electrical storms and wiring faults. Yet, for the discriminating listener, many power conditioners can make an audio/video system perform far worse. Yes, a home or building may have dimming lights or an occasional brown-out, and the utilities’ AC sine wave is always far from perfect. However, where incoming power is concerned, there are two reasons an audio/video system does not perform up to its full potential: 1) The current transients that supply the power amplifier are compressed, and 2) The ever-increasing levels of radio-frequency noise are masking (covering up) the system’s low-level signal content. When compared to or measured against a Niagara Low-Z Power Noise-Dissipation System, a simple power bar or a dedicated AC wall outlet can lose up to a third of the low-level audio information that contain much of a recording’s harmonics, imaging, high frequencies, and bottom-end grip—and once that information is gone, it’s gone forever.