AudioQuest Niagara 3000AP User manual

Owner’s Manual
Niagara 3000aP
Low-Z Power
|
Noise-Dissipation System

2
Niagara 3000AP Features 3
Introduction 3
Installation 5
Unpacking 5
Safety Information/Warnings 5
Servicing/Return to AudioQuest 5
Power Source 5
Placement 5
Connection to Audio/Video Components 6
AC Cable Routing 6
High Current/Low-Z Power Banks 6
Level-X Linear Noise-Dissipation System Power Outlets 7
Suggested AC Connections 8
Operation and Continuous Use 9
Power Switch/Circuit Breaker and LED Power Indicator 9
Rear-Panel Power Correction Switch/Niagara 3000AP Current Draw 9
Extreme Voltage Indicator 10
Break-in Time/Continuous Use 10
Specications 11
Trouble-Shooting Guide 12
Warranty 15

3
Niagara 3000AP Features
¡Transient Power Correction provides power ampliers a current reservoir of over 55 amps peak
(up to 25mS), even when plugged into a 15-amp outlet
¡Patented Ground-Noise Dissipation System yields lower distortion and greater resolution from
audio, video, and digital components with grounded AC cords/circuits
¡Level-XLinearNoise-DissipationTechnology:AC dierential-mode ltering with linear response,
optimized for varying line and load impedance, assures superior resolution for audio, video, and
digital signals
¡7 Low-Z NRG Series AC Power outlets: 2 High-Current Low-Z Power; 5 Level-X Linear Filtered
Power (source components) Outlets feature thick direct-silver plating over beryllium copper. This
assures the most ecient dissipation of induced radio frequency noise possible.
Introduction
The science of AC power is not simple; it demands focus, and the devil is in the details. In fact, the mammoth
increase in airborne and AC-line-transmitted radio signals, combined with overtaxed utility lines and the ever-
increasing demands from high-denition audio/video components, has rendered our utilities’ AC power an
antiquated technology.
Where Alternating Current (AC) is concerned, we’re relying on a century-old technology created for incandescent
lights and electric motors—technology that was certainly never meant to power the sophisticated analog and
digital circuits used in premium audio/video systems. To properly accommodate the promise of today’s ever-
increasing bandwidth and dynamic range, we must achieve extraordinarily low noise across a wide range of
frequencies.
Further, today’s power ampliers are being taxed for instantaneous peak-current demand, even when they’re
driven at modest volumes. Although we have seen a substantial increase in both dynamics and bass content from
our audio software, the loudspeakers we employ to reproduce them are no more ecient than they were two
to four decades ago. This places great demands on an amplier’s power supply, as well as the source AC power
supplying it.
Our systems’sensitive components need better alternating current—a fact that has resulted in a host of AC power
conditioning, isolation transformers, regeneration ampliers, and battery back-up system topologies. Through
dierential sample tests and spectrum analysis, it can be proven that up to a third of a high-resolution (low-level)
audio signal can be lost, masked, or highly distorted by the vast levels of noise riding along the AC power lines
that feed our components. This noise couples into the signal circuitry as current noise and through AC ground,
permanently distorting and/or masking the source signal.
All sincere attempts to solve this problem must be applauded since once the audio/video signal is gone, it’s
gone forever…
For AudioQuest, honoring the source is never a matter of simply using premium“audiophile-grade parts”or relying
on a proprietary technology—common approaches used within the audiophile market. For years, we have all
been witness to the same, seemingly endless audiophile debates: Valves versus transistors. Analog versus digital.
Can cables really make a dierence? The debates go on and on. While we, too, can brag about our many unique
technologies, we realize that true audio/video optimization is never a matter of any one secret or exotic circuit.
When it comes to noise dissipation for AC power, many approaches can yield meaningful results. However, they
may also impart ringing, current compression, and non-linear distortions that are worse than the disease.
The Niagara 3000AP uses both our patented AC Ground-Noise Dissipation System and the widest bandwidth-
linearized noise-dissipation circuit in its class. Our unique passive/activeTransient Power Correction Circuit features

4
an instantaneous current reservoir of over 55 amps peak, specically designed for modern current-starved power
ampliers. Most AC power products featuring “high-current outlets” merely minimize current compression; the
Niagara 3000AP corrects it.
Though it’s easy to boast, it’s quite another thing to create a solution that is consistent, holistic, functional, and
that honors veriable science. It’s not enough to reduce AC line noise and its associated distortions at just one
octave, thus leaving vulnerable the adjacent octaves and octave partials to noise, resonant peaking, or insucient
noise reduction. Consistency is key. We should never accept superior resolution in one octave, only to suer from
masking eects a half-octave away and ringing artifacts two octaves from there. This is the principal criterion for
AudioQuest’s Low-Z Power Noise-Dissipation System.
The Niagara 3000AP represents over 20 years of exhaustive research and proven AC power products designed
for audiophiles, broadcast engineers, and professional audio applications. Every conceivable detail has been
addressed: In the Niagara 3000AP, you’ll nd optimized radio-frequency lead directionality; run-in capacitor
forming technologies developed by Jet Propulsion Laboratories and NASA; and AC inlet and outlet contacts with
thick direct silver plating over beryllium copper, assuring superior conductivity and the tightest grip possible.
A great system is built from a solid foundation, and that foundation starts with power. With an AudioQuest Niagara
3000AP, you’ll experience for the rst time the clarity, dimensionality, frequency extension, dynamic contrast, and
grip your system has always been capable of delivering—if only the power had been right!
We welcome you to experience the Niagara 3000AP and hear rsthand the remarkable results of highly optimized
power management: startlingly deep silences, stunning dynamic freedom, outstanding retrieval of ambience
cues, and gorgeous delineation of instruments and musicians in space. Once you’ve experienced it, it may seem
so elegant, so logical, and so fundamental that you nd yourself wondering why it hadn’t been done before.
For a comprehensive discussion on AC power technology, including everything that makes AudioQuest’s Niagara
a more eective AC power solution, please download our“Power Demystied” whitepaper at
https://www.audioquest.com/content/aq/pdf/Power-Demystied-whitepaper-8-23-18.zip
—Garth Powell, Senior Director of Engineering, AudioQuest

5
Installation | Unpacking
Before unpacking your Niagara 3000AP, inspect the carton for any obvious damage to the boxes and internal
protective materials. If internal damage is likely, contact the carrier who delivered the unit. If shipping damage is
evident on the product, then please contact your shipping carrier. Please save all shipping and packing materials.
Should you move or otherwise need to transport your Niagara 3000AP, these packing materials will ensure the
safest transportation.
The double box set should contain the Niagara 3000AP (NEMA-15 AC Outlets), two foam inserts, owner’s manual,
Quick-Start Guide, front-panel polishing cloth, rack-mount kit, and warranty registration card. Registration is
recommended. In the event that your original ownership documents are lost, your registration can be used to
establish whether the unit is within the warranty period.
Safety Information | Warnings
Before operating the Niagara 3000AP, please read and observe all safety and operating instructions (or, at the very
least, the Quick-Start Guide). Retain these instructions for future reference.
¡Do not disassemble or in any way modify the Niagara 3000AP.There are no user-serviceable parts inside.
¡Keep away from moisture and avoid excessive humidity.
¡Do not allow liquids or foreign objects to enter the unit.
Servicing | Return to AudioQuest
Servicing of the Niagara 3000AP must be performed by AudioQuest, and is only required when:
¡The Niagara 3000AP has been exposed to rain, ooding, or extreme moisture.
¡The Niagara 3000AP does not appear to operate normally. (See“Trouble-Shooting Guide.”)
¡The Niagara 3000AP has been dropped and sustained considerable physical damage.
If sending the Niagara 3000AP to AudioQuest for servicing (or shipping it for any reason), please use the factory
approved packaging materials. If you have lost any of these (double carton, two foam inserts, one poly bag),
please contact AudioQuest for replacements. We will provide replacement packaging materials for a nominal
charge; shipping costs will be paid by the individual or company requesting the packaging material. Please do not
rely on other methods of packaging, including those provided or suggested by packaging/mailing stores. These
methods and materials could seriously damage the product, as well as its nish. Even the loss of the thick polybag
is enough to permanently damage the nish during transport. If you have lost the original packaging material,
please request replacement materials from AudioQuest.
Power Source
Ideally, the power source to which the Niagara 3000AP is connected should be adequate for use at 220-240V
single phase nominal voltage, 10 - 16 amps (current capacity RMS or greater).
For proper (best) operation, the Niagara 3000AP requires a safety ground (supplied via the power utility AC
wall outlet).
Placement
The Niagara 3000AP is manufactured with four rubber textured polymer feet for safe, secure placement on any
table, cabinet, shelf, or oor. When rack-mounting is required, these feet may be removed with a standard Phillips
screwdriver. The Niagara 3000AP’s design obviates the need for compliant or high-Q isolation feet. Although

6
many audio/video products benet greatly from these devices, in most cases, the Niagara 3000AP will not. You
are welcome to experiment.
Placement or proximity to other components is not critical, and, under standard use, the Niagara 3000AP does
not produce any appreciable heat. The Niagara 3000AP 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 3000AP chassis, rst
remove the threeTorx athead screws from the front portion of both the left and right sides of the cover assembly.
Next, mount the rack ears ush against the back of the Niagara 3000AP’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 3000AP 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 3000AP 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 NEMA-15 plug or any other appropriate plug that is required for the country in question. 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 3000AP’s Ground-Noise Dissipation Technology.
When facing the Niagara 3000AP’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 ampliers via our circuit’s low-impedance transient current reservoir. Power ampliers, monoblock
ampliers, integrated ampliers, 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 aects 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 amplier. Quite to the contrary, it will improve the
amplier’s performance by supplying the low-impedance current source that the amplier’s power supply so
desperately needs.
However, the other ve AC outlets (Level-X Linear Noise-Dissipation System), are not optimized for most power

7
ampliers (*with one exception; see below). They have been optimized for line-level audio preampliers, DACs,
universal players, turntables, and video products that utilize constant-current voltage amplier circuits. These
circuits never suer 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 3000AP’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.
*Compared to its larger Niagara siblings, the Niagara 3000AP is unique. Even its Source power banks are capable
of passing extraordinarily high transient current before soft-clipping (in excess of 50 amps peak). So, if you have
one or two main power ampliers and an additional one to two subwoofers, use the High-Current AC outlets for
the power amps. The subwoofers will still yield superb results when connected to any of the ve AC source outlets.
Level-X Linear Noise-Dissipation System Power Outlets
There are ve outlets that utilize this technology within the Niagara 3000AP. All ve of these are in turn isolated
from the High-Current/Low-Z outlets 1 and 2. This oers 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 3000AP’s output circuits.
Though it would be simple to recommend putting the digital or video components into outlets 3 and 4, and
the line-level audio components and turntables into outlets 6 and 7, 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 lter 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 ampliers are in
their appropriate outlets (1 and 2), and the other components are in outlets 3 through 7, 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, placing a DAC and/or streamer into one isolated group (3 through 5), and a preamplier and
turntable in another (6 and 7), 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. The combination that
sounds best (yielding the greatest resolution) is the best one for system!

8
Suggested AC Connections
220-240 VAC 50Hz
10 AMPS MAXIMUM
POWER CORRECTION (1 = ENERGIZED)
HIGH CURRENT |LOW-Z POWER CORRECTION
10 AMPS RMS MAXIMUM OUTPUT
LEVEL-X LINEAR NOISE-DISSIPATION SYSTEM
NIAGARA-3000 DESIGNED AND TESTED IN U.S.A. - ASSEMBLED IN TAIWAN
220-240 VAC 50Hz
10 AMPS MAXIMUM
POWER CORRECTION (1 = ENERGIZED)
HIGH CURRENT |LOW-Z POWER CORRECTION
10 AMPS RMS MAXIMUM OUTPUT
LEVEL-X LINEAR NOISE-DISSIPATION SYSTEM
NIAGARA-3000 DESIGNED AND TESTED IN U.S.A. - ASSEMBLED IN TAIWAN
1
2
“Energized”
position must be
default setting.
“Energized”
position must be
default setting.
15 Amp
Rated
AC Cord
15 Amp
Rated
AC Cord
Note: Outlets 3 through 7 are subject to many variables and circuit conditions, so experimentation
for best results is encouraged. Power ampliers must be connected to outlets 1 or 2.
Stereo
Amplier
Monoblock
Line-Level
Preamp
Line-Level
Preamp
Phono
Pre-
amplier
Phono
Pre-
amplier
Turntable
Turntable
Flat Screen
Monitor /
Projector
Cable /
Satellite
Box
Universal /
CD Player
DAC
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Monoblock
Subwoofer
Streamer
Universal /
CD Player DAC
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block
Phono Amp
Cable / Sat Box DAC
Line-Level Pre Amp
Mono Block

9
Operation and Continuous Use
Power Switch | Circuit Breaker and LED Power Indicator
Once the AC cords are properly connected to the AC source tap, and the components are connected to the
appropriate outlet banks, it is safe to energize the Niagara 3000AP. On the right-hand side of the Niagara 3000AP’s
front panel, there is a black rocker switch. Firmly press the rocker switch so that its upper portion is ush with the
front panel. Typically, within a couple of seconds, you should hear an audible “clack” sound(s) from one or more
relays within the Niagara 3000AP. At the same time, the front-panel LED power indictor will glow blue, signifying
that the unit is operational. (If this does not occur, see the “Trouble-Shooting Guide” in this manual.)
Rear-Panel Power Correction Switch | Niagara 3000AP Current Draw
The default position for this switch should always be “energized” or “1”—even for applications in which there
are no power ampliers of any kind powered by the Niagara 3000AP. Defaulting to “energized”/“1” serves two
functions: It activates the full Transient Power Correction Circuit for power ampliers that would be energized
by outlets 1 or 2, and also provides a portion of the Level-X Linear Noise-Dissipation Circuit for outlets 3 through
7. Although no damage to the Niagara or the connected components will occur, performance will be somewhat
compromised when this switch is not set to the “energized”/“1”position.
The “0” setting of the rear-panel switch disengages a portion of the transient power correction circuit. The switch
was created for instances in which there is either extraordinary amounts of harmonic distortion present on the
utility AC power line (creating easily audible acoustic buzzing from the listening position—rare), or there is some
concern about smart-meter power consumption. These potential issues can be immediately alleviated by placing
the rear-panel switch in the“0” position. The Transient Power Correction Circuit creates a reactive current draw of
as much as 4 to 5 amps RMS at idle (real-world draw is a small fraction of an amp), and electrical technicians who
connect a current probe to a product such as this are frequently alarmed: They suspect that the product is either
broken or that it is drawing a distressingly high amount of current from the wall outlet (akin to a power amplier
left in full operational mode).
This is actually far from the truth. If the Niagara 3000AP was consuming that much current (or even 30% of that
level), it would need to dissipate the energy loss in heat. It would be quite warm (even hot) to the touch, just like
most power ampliers while in operation. In fact, the Niagara 3000AP runs cool, precisely because this current
reading is false. The circuit utilizes massive capacitive reactance across the AC line, which, akin to a battery, will
both absorb and immediately release the current several times per second. Further, when incorporated with
power supplies such as those found in power ampliers, the current readings actually come down. This is due to
what’s known as a vector load, and it’s quite dynamic in an audio/video system. In this scenario, there is one thing
that can run somewhat warmer than it might otherwise: the AC cord that supplies power to the Niagara 3000AP.
This is because the wiring and the circuit breaker that supply power to Niagara 3000AP simply look at RMS current
and do not distinguish between reactive loads, resistive loads, or inductive loads, but your utility does.
This circuit and many like it have been utilized for many years, and, when tested into buildings with absolutely
no loads present aside from the transient power correction circuit, there was virtually zero power draw from the
utilities’ power meter. Still, in an age where so-called “smart meters” are omnipresent, and some utilities may or
may not change their standards for “what type of power or current is suitable for billing,” we have gone to great
lengths to oer an alternative to those who may be concerned, but who nevertheless wish to achieve the best
possible audio/video performance.

10
Extreme Voltage Indicator
One portion of the Niagara 3000AP’s non-sacricial surge protection is dedicated to a fast-acting extreme voltage
shutdown circuit. If more than 270VAC is present on the incoming AC line for more than a quarter of a second,
the circuit will instantly open a high-current relay that will disengage the AC power from all of the Niagara
3000AP’s AC outlets, activating the red front-panel LED “Extreme Voltage” warning indicator. Once the event has
passed, or the building wiring fault has been corrected, the circuit will automatically re-engage.
Break-in Time/Continuous Use
The Niagara 3000AP is made of a variety of passive and active components. Though every attempt has been
made to reduce the necessity of so-called “break-in,”“burn-in,” or “run-in” time—including high-power run-in of
every critical capacitor in the Level-X Linear Noise-Dissipation Circuits—the Niagara 3000AP will benet from
continuous use, just like any other audio/video component. This is not to say that you will be made to “suer”
through weeks or months of intolerable performance until that “magic day” when the parts are fully formed
and ready. On the contrary, the Niagara 3000AP will perform very well from the rst moment you use it. It will
improve gradually, in small increments, over a period of approximately two weeks. While leaving the Niagara
3000AP turned on during this period will aid the process, it is also perfectly acceptable to turn the unit o; doing
so will simply increase the time it takes to reach nal “break-in.”
The Niagara 3000AP has a 5-year warranty, but it was designed to last for over two decades. Provided that the
Niagara 3000AP is used inside a home, store, studio, or oce with a reasonable climate (7 degrees to 38 degrees
Celcius, with less than 20% humidity), it can be left on continuously; there are no parts that will wear out.

11
Specications
Surge Suppression: Non-sacricial (nothing to damage with repeated 6000V/3000A
input surge tests, which is the maximum that can survive through a
building’s AC electrical panel).
Extreme Voltage Shutdown
Voltage:
275VAC (will activate the main high-current relay to open within less
than 0.25 second; automatically resets once the incoming power is
within a safe range).
Level-X Linear Transverse-Mode
Noise Dissipation:
Well in excess of 24dB from 3kHz to 1GHz, linearized for dynamic
(rising) line impedance with frequency (source) and 10 to 50 ohm
load, system current dependent.
Input Current Maximum Capacity: 10 amps RMS (total).
7 AC Ground-Noise Dissipated
Outlets in 3 Isolated Groups:
2 High-Current outlets for on-demand current to variable-current
equipment (ampliers). 2 Level-X Linear Filtered AC outlets (outlets 3
and 4). 3 Level-X Linear Filtered AC outlets (outlets 5 through 7).
Power Consumption: Typically, less than 0.25 amps at 230VAC input, or with the power
correction switched to“o”/“0” setting.
(This is dependent on a reactive vector load. For more info, see “Operation
and Continuous Use: Rear-Panel Power Correction Switch – Niagara
3000AP current draw.”)
Dimensions: 445mm W x 88mm H x 386mm D (2-RU rack-mounting ears are
provided)
Weight: 13.1kg.

12
Trouble-Shooting Guide
At AudioQuest, we always appreciate hearing from you. However, if you have questions, problems, or
suspect that your Niagara 3000AP requires service, please start here.
There is no power to any of the AC outlets.
When the Niagara 3000AP’s front-panel LED power indicator glows blue, the unit is operational. If the Power On
indicator is not lit, consider the following:
• Is the upper portion of the front-panel rocker switch fully ush with the chassis?
• Is the input AC cord fully inserted into the Niagara 3000AP’s AC inlet?
• Is the input AC cord properly plugged into the wall AC service outlet?
• Is the wall’s AC outlet functioning properly?
Plug into the outlet another component, product, or lamp to verify that power is present and that the electrical
panel’s circuit breaker has not tripped. If there are only one or two AC outlets that have no output power, a
component may be malfunctioning. Verify the AC output with a known simple device such as a lamp.
There is no power to any of the AC outlets and the red front-panel Extreme Voltage
indicator is lit.
This indicates that either there is more than 270VAC (+/-5V) present on the wall’s AC service outlet, or the Niagara
3000AP’s protection circuit is mis-calibrated. The latter is quite rare. (This circuit is adjustable, but it’s tested and
retested before it leaves the factory, and it’s glued into place, so shipping will not aect it.) Use an AC voltage
meter to determine if your outlet has too much voltage to be safe for operation, or if there is a wiring fault that is
causing this to occur.
Once the power is brought into a safe range for operation (180VAC to 265VAC), the Niagara 3000AP’s protection
circuit will automatically switch to operational mode and the blue power indicator will light.
The main power rocker switch/circuit breaker tripped to the lower (o) position
while the system was playing.
You may have exceeded the maximum current capacity of the Niagara 3000AP. This should be rare, but it may be
possible. Typical power ampliers draw about one-third of their maximum current consumption at 120VAC, as
listed in the product’s specications (typically found in their owner’s manual). This is further complicated by the
fact that the power consumption to all AC outlets (1 through 7), is a cumulative draw on the maximum current
capacity of 10 amps that will trip this power switch/magnetic circuit breaker.
The Transient Power Correction Circuit may also contribute to the overall draw seen by the circuit breaker. Still,
it should be rare that the total capacity is exceeded, but, given that some televisions, projectors, and power
ampliers can draw substantial current, it is certainly not impossible. If this is the case, an additional Niagara
3000AP, and a discrete 10 to 16-amp AC service on the same phase of the electrical panel, will be required for some
or all of the power ampliers.
My power ampliers sound muddy, compressed, or weak.
The Transient Power Correction Circuit may not be operating. Be sure that all power ampliers, powered receivers,
powered loudspeakers, and/or powered subwoofers are plugged into the High-Current/Power Correction AC
outlets. If any of these are plugged into the Linear Power outlets, the connected power amplier(s) will be current
compressed, as the impedance is too high for any power amplier.
If the power amplier(s) are plugged into the High-Current/Power Correction AC outlets, make certain that the
rear-panel Power Correction switch is in the “energized”/“1”position (ideally).

13
My Niagara 3000AP has no power ampliers connected to it, but it sounds odd or
not quite the same as it once did.
The Transient Power Correction Circuit also aects the Level-X Linear Noise-Dissipation Circuits. Make certain that
the rear-panel Power Correction switch is in the “energized”/“1”position.
A technician or electrician found that my Niagara 3000AP consumes over 4 amps
of current. Is it broken?
No, it’s not broken, and it’s not drawing 4+ amps in any conventional sense. The Niagara 3000AP’s Transient Power
Correction Circuit creates a reactive current draw of as much as 4 to 5 amps RMS at idle, and, when incorporated
with power supplies such as those found in power ampliers, 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.
My home or grounds were hit by lightning. The Niagara 3000AP 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
3000AP via a power surge would melt the panel and burn the building (in which case, the Niagara 3000AP is the
least of your worries).
I broke o an AC plug tab while connecting or removing one of my AC cords. The
tab is stuck in the outlet. What should I do?
First, turn o or place on standby/mute all of your components, then turn o the Niagara 3000AP. Next, only after
you are absolutely certain that the power switch is o—you could also remove the input AC cord for even greater
safety assurance—use a strong set of pliers or a small handheld vice grip tool to grasp the portion of the tab that
is protruding from the NRG Edison outlet. While producing moderate outward pressure, gently wiggle the tab
until it pulls free from the outlet. This should be all that is necessary, and the outlets should be ne.
This will be a rare occurrence, but, because the gripping strength of the NRG Edison outlets is far greater than
that of generic or audiophile-grade AC Edison outlets, it is possible, if: 1. An AC cord plug has tabs that are slightly
oversized; or 2. An AC cord plug has plating that is overly thick; or 3. an AC cord plug is installed or removed in
great haste.
How do I clean the chassis and/or the electrical contacts?
The Niagara 3000AP’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 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.

14
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.
I hear a slight buzzing sound coming from the Niagara 3000AP. 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 3000AP, or only when you place your
ear next to the unit, the buzzing is normal and, unfortunately, cannot be entirely eliminated.
What you are experiencing is a variation on the eect called magnetostriction. When an extraordinarily high
quantity of harmonic distortion is present on an AC line, a portion of the Transient Power Correction circuit that
is hermetically sealed and damped can mechanically buzz as its internal electrical plates resonate at 60 Hertz
and many octaves above. In order to reduce or eliminate this harmonic distortion, the circuit is trying to turn this
distortion into heat. This has no eect on the performance or longevity of the Niagara 3000AP or its connected
components.
Well over ninety-nine percent of installations will never exhibit this problem, but that’s no comfort to the 1%
that do. Unfortunately, when this is very audible and present from across the listening room, it is typically due
to a poorly performing electrical transformer supplied from the power utility, or, sometimes, a chopped AC
waveform of an old or poorly functioning lighting dimmer system. The transformer may be saturating or in need
of replacement, and older dimmer systems may need updating (if this is at all possible).
Occasionally, this may also be triggered by other large electrical appliances whose power supplies are
severely asymmetrical. Try turning on the Niagara 3000AP with an AC outlet that is on a dierent phase from
the electrical panel. This may require some experimentation and the help of an electrician. If this cannot be
remedied, simply place the rear-panel switch to the“0” position. Only a portion of the Transient Power Correction
will be disabled, and 90% of the unit’s performance will remain intact (but the annoying buzz will be gone).

15
Warranty
The Quest Group, DBA: AudioQuest, warrants to the original purchaser of this AudioQuest Niagara 3000AP, will be
free from defects in material and workmanship for a period of one year. The purchaser of the product is allowed
30 days from the date of purchase to complete the warranty registration by mail or online at the AudioQuest
website. If the purchaser completes the aforementioned registration, the warranty period will be increased to
ve years from the date of purchase.
If the product does not conform to this Limited Warranty during the warranty period (as herein above specied),
purchaser shall notify AudioQuest in writing (or e-mail), of the claimed defects. If the defects are of such type and
nature as to be covered by this warranty, AudioQuest shall authorize the purchaser to return the product to the
AudioQuest factory (2621 White Road, Irvine, California, 92614 USA). Warranty claims should be accompanied
by a copy of the original purchase invoice showing the purchase date; this is not necessary if the Warranty
Registration was completed either by mailing in the completed warranty card or by registering online at the
AudioQuest website. Shipping charges to the AudioQuest factory (Irvine, California, USA) must be prepaid by the
purchaser of the product. AudioQuest shall, at its own expense, furnish a replacement product or, at AudioQuest’s
option, repair the defective product. Return shipping charges back to the purchaser will be paid by AudioQuest.
All warranties contained herein are null and void if: the AudioQuest AC power product (Noise-Dissipation System)
has been opened, improperly installed, altered in any way, or tampered with. AudioQuest is not responsible for
any connected equipment or any claims of damage to connected equipment due to the occurrence of an AC
power surge, spike, or over-voltage event, unless AudioQuest determines after thorough inspection and testing
by AudioQuest (with product shipped to AudioQuest USA at the owner’s expense), that the protection circuitry
was in whole or in part improperly functioning. AudioQuest is not responsible for any connected equipment that
is damaged due to external signal lines (non-AC power lines), that carry an electrical storm or signal wiring fault
surge or spike (such as Ethernet, cable, and satellite connections). All AudioQuest AC power products (Noise-
Dissipation Systems), must be plugged directly into a properly wired AC power line with a protective ground.
AudioQuest AC power products (Noise-Dissipation Systems) cannot be“daisy-chained” together in serial fashion
with other AC power strips, UPS devices, other AC surge protectors, AC power conditioners, three-to-two prong
adapters, or AC extension cords. Any such installation voids the warranty. The AudioQuest warranty only protects
against damage to properly connected equipment or AC cables where AudioQuest has determined, at its sole
discretion, that the damage resulted from an AudioQuest power product (Noise-Dissipation System) circuit or
protection circuit malfunction and does not protect against acts of God (other than lightning, such as ood
or earthquake), war, terrorism, vandalism, theft, normal use wear and tear, erosion, depletion, obsolescence,
abuse, damage due to low-voltage disturbances (i.e., brownouts or sags), or system equipment modication
or alteration. Do not use this product in any way with a generator, heater, sump pump, water-related devices,
life-support devices, medical devices, automobile, motorcycle, or golf-cart battery charger. To be used indoors
only and in dry areas. All warranties contained herein are null and void if used in any way with any of the
aforementioned devices.
THE FOREGOING IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITEDTOTHEIMPLIEDWARRANTIES OF MERCHANTABILITYANDFITNESSFORAPARTICULARPURPOSE.
AudioQuest does not warrant against damages or defects arising out of improper or abnormal use or
handling of the product, against defects or damages arising from improper installation, against defects
in products or components not manufactured by AudioQuest, or against damages resulting from such
non-AudioQuest made products or components. This warranty shall be cancelled by AudioQuest at its
sole discretion if the product is modied in any way without written authorization from AudioQuest.
This warranty also does not apply to products upon which repairs have been aected or attempted by
persons other than pursuant to written authorized by AudioQuest.

THIS WARRANTY IS EXCLUSIVE. The sole and exclusive obligation of AudioQuest shall be to repair or
replace the defective product in the manner and for the period provided above. AudioQuest shall not
have any other obligation with respect to this product or any part thereof, whether based on contract,
tort, strict liability, or otherwise. Under no circumstances, whether based on this Limited Warranty or
otherwise, shall AudioQuest be liable for incidental, special, or consequential damages. AudioQuest
employees or representatives’ ORAL OR WRITTEN STATEMENTS DO NOT CONSTITUTE WARRANTIES,
shall not be relied upon by purchaser, and are not a part of the contract for sale or this Limited Warranty.
This Limited Warranty states the entire obligations of AudioQuest with respect to the product. If any
part of this Limited Warranty is determined to be void or illegal, the remainder shall remain in full force
and eect.
Warranty claims should be accompanied by a copy of the original purchase invoice showing the date
of purchase. (If a Warranty Registration Card was mailed in at the time of purchase or if the product was
registered online, this is not necessary.) Before returning any equipment for repair, please be sure it is
adequately packed and cushioned in either the original or a new AudioQuest factory-supplied polybag,
foam insert pair, and dual carton set to protect against damage in shipment, and that it is insured.
March 2021 W
©2021 AudioQuest • California, USA • The Netherlands • www.audioquest.com • Email: [email protected] • Made in USA