AudioQuest Niagara 7000EU Owner's Manual - Page 17

Browse online or download pdf Owner's Manual for Noise Reduction Machine AudioQuest Niagara 7000EU. AudioQuest Niagara 7000EU 20 pages. Low-z power noise-dissipation system

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In rare circumstances, there are some computer peripherals or DACs that feature grounded AC cords and whose

circuits rely on a hard AC ground (i.e., they cannot be floated). Under these rare circumstances, you may obtain

better results with that one component plugged into one of the High Current/Power Correction outlets or into

an accompanying Niagara 5000, 1000, or 700 Low-Z Power Noise-Dissipation System.

My home or grounds were hit by lightning. The Niagara 7000EU seems to be

functioning properly. Should it be sent in for inspection or service?

If you see or smell smoke coming from the unit, it needs service. Otherwise, if it functions after such an event

(which is very likely), there is nothing that would be compromised or damaged. If it fails after such an event, it

will fail totally. However, it's unlikely that this would occur. The circuit is designed to easily handle any voltage

or current surge that could possibly make it past an electrical panel. The force required to damage the Niagara

7000EU via a power surge would melt the panel and burn the building (in which case, the Niagara 7000EU is the

least of your worries).

How do I clean the chassis and/or the electrical contacts?

The Niagara 7000EU's black-painted chassis and dark chrome front panel can be cleaned with AudioQuest

CleanScreen or a modest misting of household window cleaners. Please use soft cotton or wool toweling to

remove the liquid from the metal and painted surface. Whenever possible, use the supplied polishing rag for the

front panel, only using liquid cleaner when oil or grime is beyond the polishing cloth's capacity to thoroughly

clean. Never use alcohol or solvent-based cleaners. They can damage the surfaces, paint, and silk-screening

material.

The AC inlet, outlet posts, and grips are all generously plated with silver. There is no need to clean these if they

are not exposed to foreign substances such as grease and dirt. Silver oxide is a superior conductor to silver itself.

If cleaning is required, Isopropyl alcohol (preferably 99% purity) on a cotton swab is best for the inlet tabs. Some

manufacturers provide specialized cleaners for the AC output surfaces. Again, however, cleaning these surfaces

will most likely be unnecessary.

Note: A pipe cleaner or cleaning swab with a wood stick and compact wool tip (available from an electronics

supply house) will be superior to household swabs. When working in a small area such as an AC outlet, this is

critical. Loose strands of cotton may damage the AC outlet. Damage to an AC inlet or outlet due to cleaning is

not covered under your warranty. If you damage an inlet or outlet in an attempt to clean it, you will be charged

for the repair and you will be responsible for all shipping costs (this is overseas - please use caution).

I hear a slight buzzing sound coming from the Niagara 7000. 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 7000EU, 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 called magnetostriction. When an extraordinarily high quantity of harmonic

distortion is present on an AC line, or when the AC line contains some DC offset voltage that should not be

present, even the finest power transformers in the world will react to this problem. In order to reduce or eliminate

this distortion, the power transformers try to turn it into heat, causing the transformers' steel alloy core to hum

at 50 cycles per second and all harmonics above that. This has no effect on the performance of the Niagara

7000EU or its connected components.