AudioQuest Niagara 3000UK Руководство пользователя - Страница 6
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Печатать страницуPlacement or proximity to other components is not critical, and, under standard use, the Niagara 3000UK does
not produce any appreciable heat. The Niagara 3000UK may be rack-mounted in a standard 19" rack by attaching
the included Niagara Series 2-RU rack ears. To attach the optional rack ears to the Niagara 3000UK chassis, first
remove the three Torx flathead screws from the front portion of both the left and right sides of the cover assembly.
Next, mount the rack ears flush against the back of the Niagara 3000UK's front panel. Finally, secure the rack ears
into place by installing the rack-mount kit's Phillips pan head SEMS screws.
When tight installations do not provide adequate room in a rack, shelf, or cabinet, the Niagara 3000UK can actually
be placed on its side. Such placement will pose no safety or performance compromises, but we recommend
placing a soft towel or carpet under the unit to prevent the chassis and front panel from being scratched or
marred in any way.
Connection to Audio/Video Components
AC Cable Routing
Once the Niagara 3000UK is placed, a 10-amp-rated (or greater), high-current AC cord must be connected to the
rear-panel AC inlet (IEC-C14) connector. The AC cord must have an IEC-C13 female end connector and a grounded
male UK UK1-13P plug for use in the UK, or any other appropriate country that utilizes this connector. We highly
recommend the use of any AudioQuest NRG-Z, Wind Series, or High-Current Storm Series AC cable. Because
these cables feature conductors that have been meticulously controlled for proper low-noise directionality, they
will ensure the best possible results from the Niagara 3000UK's Ground-Noise Dissipation Technology.
When facing the Niagara 3000UK's rear panel, the IEC-C14 inlet is located on the unit's lower-left side. The AC
inlet cord must be connected to an appropriate AC outlet (see "Power Source, " page 4).
Whenever possible, it is best to keep at least three inches (approximately 7cm) between AC cables and any signal
cable. When this is not possible in a practical layout of system cabling, crossing the AC cables to signal cables at
90 degrees is best to minimize induced noise.
High-Current | Low-Z Power Outlets
There are two High-Current/Low-Z Power outlets (labeled "1" and "2"). These outlets feature our Transient Power
Correction Technology (55 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 two
outlets. Please set the rear panel switch to "energized" or "1, " as the default position. This affects a portion of the
Transient Power Correction Circuit. (See "Rear-Panel Power Correction Switch. " )
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 five AC outlets (Level-X Linear Noise-Dissipation System), are not optimized for most power
amplifiers (*with one exception; see below). 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 3000UK'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.
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