AudioQuest Niagara 7000EU Руководство пользователя - Страница 6
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Печатать страницуPlacement
The Niagara 7000EU is manufactured with four rubber textured polymer feet for safe, secure placement on any
table, cabinet, shelf, or floor. When rack-mounting is required, these feet may be removed with a standard Phillips
screwdriver. The Niagara 7000EU's design obviates the need for compliant or high-Q isolation feet. Although
many audio/video products benefit greatly from these devices, the Niagara 7000EU may not.
Placement or proximity to other components is not critical, and, under standard use, the Niagara 7000EU does not
produce any appreciable heat. The Niagara 7000EU may be rack-mounted in a standard 19" rack by attaching the
optional Niagara Series 3-RU rack ears. To attach the optional rack ears to the Niagara 7000EU 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 7000EU'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 7000EU 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 7000EU is placed, an appropriate 16-amp-rated high-current AC cord must be connected to the
rear-panel AC inlet (IEC-C20) connector. The AC cord must have an IEC-C19 female end connector and a grounded
male 220-240VAC Schuko plug. We highly recommend the use of any AudioQuest 16-amp-rated 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 7000EU's
Ground-Noise Dissipation Technology.
When facing the Niagara 7000EU's rear panel, the IEC-C20 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").
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.
Connecting AC cables to the Niagara 7000EU's NRG Schuko AC outlets –
WARNING!
The AudioQuest NRG Schuko AC outlets feature (as do all Schuko female receptacles), reversible polarity
connection. Though both orientations are safe to use, only one is correct for lowest noise and best performance.
All Schuko AC outlets (1 through 12) can be measured with a polarity checking device to determine which
orientation is best for the AC cord that is connected to your walls' AC service outlet. Make certain you turn the
front-panel power switch/breaker off between measurements and unplugging the cords.
To determine the optimum orientation of the outlet's AC cords, a polarity-check device or even a digital
multimeter is not always ideal. This is because many component power supplies feature bi-directional supplies,
but one direction typically has less current leakage than the other. To determine which orientation is best, we
recommend listening to each component individually. Once the optimal orientation has been identified, mark
the outlet and the AC cord's plug accordingly. The simplest way to make this determination is with no signal
present, but with all volume controls set to maximum. The quieter of the two orientations is the correct one. For
line-level components, it may be necessary to place your ear by the loudspeaker's high-frequency driver in a
quiet environment or use a familiar audio track to determine the most coherent, non-distorted sound.
Marking polarity or orientation on AC outlets or cord plugs should be done discreetly with tape or an ink pen that
can be removed either with isopropyl alcohol or household cleaner on a cotton swab.
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