The science of AC power delivery
is not a simple one; it
demands focus, and the devil is
in the details. In fact, the
great increase in airborne and
signals, combined with overtaxed
utility lines and the
ever-increasing demands from
video components, has rendered
our utilities’ AC power a
somewhat 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 today’s premium
To properly accommodate the
promise of today’s ever increasing
bandwidth and dynamic range, we
achieve extraordinarily low noise
across a very wide range
Further, today’s power amplifiers
are being taxed for
demand, even when they’re
driven at modest volumes.
Although we have seen a
substantial increase in dynamics
from much of our audio
software, the loudspeakers we
employ to reproduce them
are often no more efficient than
they were two to four
decades ago. This places great
demands on an amplifier’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
transformer, regeneration amplifier,
and battery back-up system
topologies. Through differential
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.
Given that the stakes are so
high, all sincere attempts to solve
this problem must be applauded.
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 within
our community. 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
difference?; and 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 filtering for AC power,
many approaches can yield
meaningful results. However,
these approaches may also impart
compression, and non-linear
distortions that can render the
cure worse than the disease!
The Niagara 5000 features our patented AC Ground Noise-
Dissipation System, the widest bandwidth-linearized AC filter in the industry,
and our unique passive/active Transient Power Correction Circuit. Boasting an instantaneous current reservoir of over 90 amps peak, the Niagara 5000 is
specifically designed for today’s current-starved power amplifiers. Many AC
power products featuring “high-current outlets” merely minimize current
compression; the Niagara 5000 corrects it.Though it’s easy to tout a given technology, it’s quite
another thing to create a solution that is consistent, holistic, functional,
and that honors verifiable 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
insufficient noise reduction. Consistency is key. We should never accept superior
resolution in one octave, only to suffer from masking effects 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 5000 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 5000, you’ll find optimized radio-frequency lead
directionality, capacitor run-in forming technologies developed by Jet
Propulsion Laboratories and NASA, and AC inlet and outlet contacts with heavy
silver plating over extreme-purity copper, assuring the tightest grip possible.
A great system is built from a solid foundation, and that
foundation starts with power. With an AudioQuest Niagara 5000, you’ll
experience for the first 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 5000 and hear
firsthand 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 obvious
that you find yourself wondering why it hadn’t been done before.
Surge Suppression: Non-sacrificial (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: 140VAC (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).
Common-Mode Noise Dissipation: In excess of 30dB from 20kHz
to 100MHz, linearized for dynamic (rising) line impedance with frequency
(source) and 10 to 50 ohm load, system current dependent.
Transverse-Mode Noise Dissipation: 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: 20 amps RMS (total).
Ultra-Linear Noise-Dissipation System AC Power Outlet Banks:
4 Isolated groups - total (bank three through six).
Number of AC Outlets: 12 (4 High Current/Transient Power
Correction; 8 Ultra-Linear Noise Dissipation System Power).
Power Consumption: Typically, less than 0.25 amps at 120VAC
input, or with the power correction switched to Standby setting.
(This is dependent on a reactive vector load. For more info,
see “Operation and Continuous Use: Rear-Panel Power Correction Switch – Niagara
5000 current draw.”)
Dimensions: 17.5” W x 5.24” H x 17.2”D (3-RU rack-mounting
Weight: 38 lbs.