AudioQuest Niagara 5000EU Kullanıcı El Kitabı - Sayfa 17
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I hear a slight buzzing sound coming from the Niagara 5000EU. Is it damaged?
No, it's not damaged (or, at least, damage is very unlikely). If you're in an extraordinarily quiet room and you hear
this buzzing sound only when in relatively close proximity to the Niagara 5000EU, or only when you place your ear
next to the unit, the buzzing is normal and, unfortunately, cannot be eliminated.
What you are experiencing is a variation on the effect called magnetostriction. When an extraordinarily high
quantity of harmonic distortion is present on an AC line the hermetically sealed and damped Transient Power
Correction circuit can mechanically buzz as its internal electrical plates resonate at 50 Hertz and many octaves
above. In order to reduce or eliminate this harmonic distortion, the circuit is trying to turn this distortion into heat.
This has no effect on the performance or longevity of the Niagara 5000EU or its connected components.
Over ninety-nine percent of installations will never exhibit this problem, but that's no comfort to the 0.1% that
do. Unfortunately, when this effect is very audible and present from across the listening room, it is typically due
to a poorly performing electrical transformer supplied from the power utility that may be saturating, or; is in need
of replacement. Occasionally this may also be triggered by other large electrical appliances that have severely
asymmetrical power supplies. It can be useful to try turning the Niagara-5000EU on with an AC outlet that is on a
different phase from the electrical panel. This may require the help of an electrician, and some experimentation.
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