AudioQuest Niagara 7000EU Owner's Manual - Page 7

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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High-Current | Low-Z Power Outlets

There are four High-Current/Low-Z Power outlets (labeled "1" through "4"). These outlets feature our Transient

Power Correction Technology (90 amps peak - up to 25 mS duration) and are designed to enhance the

performance of power amplifiers via our circuit's low-impedance transient current reservoir. Power amplifiers,

monoblock amplifiers, integrated amplifiers, powered receivers, or powered subwoofers should be connected

to these four outlets. The primary mono, stereo, or multi-channel power amplifier(s) should be connected to AC

outlet 1. This enables the standby sense circuit, which requires the current draw of a power amplifier connected

to (and only to) outlet 1. In terms of sonic performance, there is no difference between outlets 1 through 4. If

the standby sense circuit is not utilized, and the sense circuit bypass switch is set to "Enabled," any of the three

high-current outlets may be utilized.

For systems with only one or two power amplifiers, the two uppermost outlets of the four (outlets 1 and 3) will

provide slightly superior performance due to their closer proximity to the AC outlets' radio-frequency noise-

dissipation circuit. However, the outlets located directly below will certainly afford exemplary performance.

Regardless of class of operation or circuit topology (valve, solid-state, digital, or otherwise), the Transient Power

Correction Circuit will not compress the current of any power amplifier. Quite to the contrary, it will improve the

amplifier's performance by supplying the low-impedance current source that the amplifier's power supply so

desperately needs.

However, the other eight AC outlets (Level-X Ultra-Linear Noise-Dissipation System), are not appropriate

for power amplifiers. They have been optimized for line-level audio preamplifiers, DACs, universal players,

turntables, and video products that utilize constant current voltage amplifier circuits. These circuits never suffer

from current compression, but their lower input level and higher gain require a more robust means of noise

dissipation. This is key to the Niagara 7000EU's discrete AC power banks, in that not every circuit is treated the

same, but rather isolated bank by bank and optimized for best performance.

Level-X Ultra-Linear Noise-Dissipation System Power Outlets

There are two banks (with eight outlets) that utilize this technology within the Niagara 7000EU. Further, the first

bank (AC outlets 5 through 8), are 100% isolated from the second bank (AC outlets 9 through 12). All eight of these

outlets are in turn, 100% isolated from the High-Current/Low-Z bank (outlets 1 through 4). This offers a great

advantage in controlling the complex interactions of RF (radio frequency) and other induced noises present in

the AC power supplied from your utility, the noise that will be present on and in every AC cord, and the noise that

is produced within your system's components and that "backwashes" into the Niagara 7000EU's output circuits.

Though it would be simple to recommend putting the digital or video components into bank 2, and the line-

level audio components and turntables into bank 3, the quest for optimal performance is more complex. This

scenario will work, and likely work well, but a certain amount of experimentation is best given the fact that no

filter can eliminate 100% of all noise. The size of many of these RF-induced waveforms possess sinewaves as small

as the edge of a piece of paper, and the interactions are complex. So long as the power amplifiers are in their

appropriate banks (outlets 1-4), and the other components are in the remaining banks, you should experience

exemplary performance. Still, for the audiophile with patience, the reward will be system performance with the

highest possible resolution and lowest possible noise.

To achieve that optimal performance, we recommend the following guidelines. For systems that utilize very

few components, bear in mind that it is advantageous to use the uppermost outlets in each bank as they have

a closer proximity to the final stage noise-dissipation circuits. (The same holds true for the High-Current banks.)

Again, because bank 2 is 100% isolated from bank 3, placing a DAC and/or universal player in one isolated group,

and a preamplifier and turntable in another, would be an excellent way to start. For systems that are much larger

and require more outlets, try starting with the most basic setup, then adding one component at a time. Try

either of the two isolated bank groups to see which works best for you. The bank that sounds best (yielding the

greatest resolution) is the best one for your system!