AudioQuest Niagara 7000 - power filter

The science of AC power delivery is not a simple one; it demands focus, and the devil is in the details. In fact, the great increase in airborne and AC-line-transmitted radio signals, combined with overtaxed utility lines and the ever-increasing demands from high-definition audio/video components, has rendered our utilities? AC power a somewhat antiquated technology.

Where Alternating Current (AC) is concerned, we?re relying on a century-old technology created for incandescent lights and electric motors?technology that was certainly never meant to power the sophisticated analog and digital circuits used in today?s premium audio/video systems. To properly accom-modate the promise of today?s ever-increasing bandwidth and dynamic range, we must achieve extraordinarily low noise across a very wide range of frequencies.

Further, today?s power amplifiers are being taxed for instantaneous peak-current demand, even when they?re driven at modest volumes. Although we have seen a substantial increase in dynamics from much of our audio software, the loudspeakers we employ to reproduce them are often no more efficient than they were two to four decades ago. This places great demands on an amplifier?s power supply, as well as the source AC power supplying it.

Our systems? sensitive components need better alternating current?a fact that has resulted in a host of AC power conditioning, isolation transformer, regeneration amplifier, and battery back-up system topologies. Through differential sample tests and spectrum analysis, it can be proven that up to a third of a high-resolution (low-level) audio signal can be lost, masked, or highly distorted by the vast levels of noise riding along the AC power lines that feed our components. This noise couples into the signal circuitry as current noise and through AC ground, permanently distorting and/or masking the source signal.