AudioQuest Niagara 5000EU Manuel du propriétaire - Page 16

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Circuit to work properly while the switch is in the "Bypass" position (see "Power Correction Switch, " p.??), you might

find that the unit sounds substantially better in the "Engaged" position. If this is the case, it is possible that the main

or primary power amplifier(s) are not plugged into High-Current AC outlet 1, the power amplifier has insufficient

current draw to activate the circuit, or the circuit is miscalibrated.

When the Power Correction switch is set to the "Engaged" position, the current sense circuit will be defeated. Yet,

even with the current sense circuit functioning properly, audiophiles may prefer the "Engaged" position, as it will

slightly decrease the impedance of the Transient Power Correction Circuit.

My Niagara 5000EU has no power amplifiers connected to it, but it sounds odd or

not quite as good as it once did.

The Transient Power Correction Circuit also aids the Ultra-Linear Noise-Dissipation Circuits. Make certain that the

rear-panel Power Correction switch is in the "Engaged" position.

A technician or electrician found that my Niagara 5000EU consumes over 8 amps

of current. Is it broken?

No, it's not broken, and it's not drawing 8+ amps in any conventional sense. The Niagara 5000EU's Transient Power

Correction Circuit creates a reactive current draw of as much as 9 to 10 amps RMS at idle, and, when incorporated with

power supplies such as those found in power amplifiers, the current readings decrease. This is a vector load, which will

vary with the connected equipment. When plugged into an AC service that has no other electrical draw, it is typical to

see a real-world RMS power draw well below 30 watts at idle. (For an in-depth explanation of the circuit, see "Power

Correction Switch, " page 12.)

My home or grounds were hit by lightning. The Niagara 5000EU seems to be

functioning properly. Should it be sent in for inspection or service? I did not notice

hum with any prior power device, but there is a hum in my system

with the Niagara 5000EU.

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 5000EU via a power surge

would melt the panel and burn the building (in which case, the Niagara 5000EU is the least of your worries).

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

The Niagara 5000EU's black-painted chassis and dark chrome front panel can be cleaned with AudioQuest

CleanScreen, automotive polishing creams, 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 silkscreening 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