AudioQuest Niagara 5000
AudioQuest mains power conditioner designed for demanding power amplifiers, with noise filtering and active correction of transient currents.
Description
The Niagara 5000 is a mains power conditioner from AudioQuest, designed to sit between the wall socket and the components of an audio system, particularly power amplifiers. Its role is to treat the alternating current before it feeds the equipment, reducing ground noise and stabilising the power supply during current demand peaks.
The unit incorporates a linearised AC filter presented as the widest bandwidth available on the market, combined with a proprietary active/passive transient current correction circuit. This combination aims for a precise objective: not merely limiting current compression, as many mains conditioners with "high current" outlets do, but actively correcting it. The Niagara 5000 thus features an instantaneous current reservoir exceeding 90 A peak, a reserve designed to meet the sudden demands of modern amplifiers.
This conditioner is intended for systems built around one or more current-hungry power amplifiers, where fluctuations in mains load can result in a loss of dynamics or non-linear distortion. It finds its place in a carefully assembled hi-fi or home cinema system, where the electrical supply is recognised as a component in its own right in sound reproduction.
What to check before buying used
The terminal block and mains connectors deserve a visual check: no signs of overheating, burning or looseness should be present, as these conditioners carry substantial currents during power demand peaks. Test each filtered outlet with a device plugged in to confirm they all deliver power correctly and that the status indicators, if fitted, light up normally. An inspection of the ventilation and the rear of the chassis also helps rule out any signs of prolonged overheating.
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