Often overlooked or neglected, the power supply has an undeniable impact on the sound quality of a high-quality hi-fi system. With the Audioquest Niagara 1200 conditioner, the American manufacturer promises a filtered power supply, free from interference and unwanted noise, while protecting the connected components. But can it really improve the musical performance of your hi-fi or home theater system?
Why filter the current?
While speakers, amplifiers, TVs, projectors and sources are often the focus of attention, one essential element is often overlooked: the quality of the power supply. External interference such as voltage variations and interference can alter the sound or image, reducing signal clarity and dynamics. These disturbances can be caused by the many devices connected to the electrical network, such as refrigerators, freezers and transformers, but also by users outside your home. This is where the Audioquest Niagara 1200 mains conditioner comes in, purifying the current by removing pollution and noise, while providing protection against power surges.
Introducing the Audioquest Niagara 1200 filter
Design
Priced at €799 with an Audioquest NRG-Y3 EU power cable, the Audioquest Niagara 1200 filter is the entry-level model in the Niagara range, which also includes the Audioquest Niagara 3000, Audioquest Niagara 5000 and Audioquest Niagara 7000 filters. It is intended for high-end installations, with which it blends perfectly thanks to its minimalist design. Its sturdy anthracite chassis is made entirely of thick steel, reinforcing its premium appearance while effectively isolating the filter from external interference and vibrations.
On the right-hand side, the Audioquest Niagara 1200 power filter houses the power switch, as well as a power-on indicator, an extreme voltage indicator and a reset button. The latter allows the system to be rebooted after a surge shutdown. It’s a pity that there’s no phase indicator to check that the wall socket to which the conditioner is connected is correctly wired.
At 49cm long, the Niagara 1200 slightly exceeds hi-fi standards, where units are generally 42cm wide. This elongated format can make it difficult to integrate in narrow hi-fi cabinets. The conditioner will also tend to protrude from other equipment when placed directly above them. However, the Niagara 1200 offers placement flexibility, thanks to its shallow depth of 19cm and thickness of just 8.7cm, which allow it to be installed in a vertical position. This proves particularly practical for configurations where space is limited, with the possibility of concealing it entirely behind an audio/video cabinet or placing it directly against a wall, as it doesn’t heat up.
Filtering and protection
To improve the quality of the electrical current, the Audioquest Niagara 1200 conditioner uses a ground noise dissipation system and filtering, both developed and patented by the American manufacturer. The latter uses passive, non-inductive linear filters to considerably reduce the linear noise and interference that can affect sound. They operate over a wide range of interfering frequencies, promising a noise reduction of over 24 dB from 20kHz to 1GHz. This results in a reduction in distortion caused by connected devices and environmental interference, often responsible for loss of sonic clarity and micro-details, or dynamic compression.
Note that the filtering is only available on five of the eight sockets. The two unfiltered sockets are intended for devices that use a lot of power, to avoid any drop in dynamic range. The latter, however, benefit from a ground noise dissipation system to avoid any ground effect or hum.
In addition to improving power quality, the Audioquest Niagara 1200 power strip features surge protection. This system automatically detects voltage peaks, preventing any accidental failure of connected components in the event of an electrical fault on the network: thunderstorm, falling pole, transformer failure, etc. A real asset for protecting expensive hi-fi and home theater components from sudden electrical fluctuations or accidental power surges.
High-capacity filtered sockets
The Audioquest Niagara 1200’s filtering system uses capacitors developed in collaboration with Jet Propulsion Laboratories and NASA to improve linearity and minimize distortion. Wiring is based on solid-core conductors with very low resistance and optimized directivity for improved dynamics. These serve the seven electrical outlets, including five filtered outlets and two high-intensity outlets (unfiltered with ground noise dissipation).
The filtered sockets are ideal for the most sensitive components, including sources such as network players, CD players, turntables, televisions, projectors and pre-amplifiers. The high-current sockets, on the other hand, are unfiltered and equipped only with a noise-dissipation system, so that they can be used to connect more power-hungry devices such as amplifiers or subwoofers. They are optimized to meet high current demands while preserving dynamic range. To ensure optimum contact, the seven electrical sockets are made from high-purity beryllium copper coated with solid silver. This choice of materials limits resistance for better mains current transmission and avoids any dynamic compression effect.
All the Audioquest Niagara 1200 conditioner’s sockets are Schuko type, with grounding connectors located on the sides rather than the traditional central pin. This allows you to change the direction of connection of each device if necessary, facilitating optimal phasing. Unfortunately, this is not indicated on the filter connectors, but is located on the right connector. This placement is also the same on the wall socket if the installation is carried out correctly.
With a maximum current of 10A at 230V, the Audioquest Niagara 1200 mains conditioner can supply up to 2,300W, which is more than enough to power all the components of a hi-fi and/or home theater system.
A word of caution: the thinness of the conditioner can make it difficult to use power cables with angled connectors, as these may interfere with the installation by encroaching on the devices underneath when the Niagara 1200 is positioned horizontally. To overcome this constraint, we recommend placing the conditioner vertically or, ideally, opting for cables with straight connectors, such as the NorStone Arran PWC.
Configuration
Installation of the Audioquest Niagara 1200 conditioner is as simple as using a conventional power strip. Simply connect it to the mains using the included Audioquest IEC cable, then connect the various components, respecting the phasing and requirements of each device: sources and preamplifiers on the filtered sockets, and power amplifiers, integrated amplifiers and subwoofers on the unfiltered high-intensity sockets.
We tested the Audioquest Niagara 1200 power strip in various scenarios: a Cayin SC-6LS MK2 preamplifier (filtered socket) with the Tonewinner AD 2500 PRO power amp (high-capacity socket), the Cayin CS-150A integrated amp (high-capacity socket) and Cayin IDAC-8 preamplifier (filtered socket) with a NAD power amp (high-capacity socket). The common source for all these configurations was the EverSolo DMP-A6 network player connected to a filtered socket. Finally, we also tested the Audioquest Niagara 1200 in a home theater with a Marantz receiver and Rel subwoofer connected to the high-capacity sockets, as well as an LG OLED TV connected to a filtered socket.
Our impressions
Hi-Fi use
It’s surprising how much of an impact the Audioquest Niagara 1200 had on the sound reproduction, especially on those sources that are the most sensitive to power quality. The improvements were subtle but significant, with a more refined and nuanced sound on both high-end systems and more modest configurations. All frequency ranges benefited from the power conditioner, especially at the low end of the spectrum, with cleaner, more articulate bass that was deeper, without becoming overwhelming.
The Audioquest Niagara 1200 also enhanced the soundstage, making it more open. It added an extra dimension, producing a real sense of space for a fuller, airier listening experience. Both width and depth were improved, with more precise spatial imaging, ensuring better separation and clearer placement of the instruments.
Over the course of several listening sessions, the wealth of information distilled seemed to become more defined and prominent. The micro-information was carefully delineated and presented with unprecedented clarity. Instruments emerged with sharper contours, and each note seemed to have been chiseled, offering a more detailed and nuanced sound. The subtleties of the performance were conveyed very well, reinforcing the feeling of being close to the artists.
Home theater use
In our home theater system, we enjoyed all the advantages of the Audioquest Niagara 1200 in terms of sound, with an improved soundstage, better definition and more presence. In this configuration, the Audioquest Niagara 1200 also revealed a number of advantages in terms of amplifier and subwoofer dynamics. There was absolutely no need to turn up the volume to experience the full richness of the sound. Every note was reproduced with a natural intensity and depth, so there was no need to overcompensate by turning up the volume. What’s more, when we did choose to turn up the volume, the sound remained remarkably smooth and controlled, without any harshness. The sound retained a smoothness and stability that allowed us to listen at higher volumes without experiencing auditory fatigue.
We weren’t as impressed when we connected the TV to the Audioquest Niagara 1200’s filtered outlets. Although the image appears slightly finer during 4K HDR scenes, with a subtle gain in precision in detail, the improvement was much less pronounced than with hi-fi equipent.
Who is this power strip for?
The Audioquest Niagara 1200 power conditioner is designed for discerning audiophiles and home theater enthusiasts who want to optimize every aspect of their installation for optimum performance. It’s ideal for those who have already invested in a quality hi-fi or home theater system and are looking to unleash its full potential by eliminating electrical noise and fluctuations.
Conclusion
The Audioquest Niagara 1200 power conditioner is one of those elements whose contribution may be subtle to perceive, but whose absence is immediately clear as soon as it is removed from the audio chain. It enriches the listening experience by deploying a fuller, airier soundstage, with better-defined, perfectly articulated bass. Details gain more precision, finesse and presence, offering a more intimate and nuanced reproduction. Dynamics are also improved, allowing you to enjoy livelier attacks, greater impact and better balance at low volumes. The Audioquest Niagara 1200 is therefore an invaluable ally for those wishing to maximize the potential of their installation, without having to completely rethink their equipment. It also makes an excellent protection element, protecting connected devices from surges or storm-related damage.
We liked:
- The build quality
- The greater extension
- The increased dynamics
- The bass control
- The feeling of definition and presence
We would have liked:
- A slightly shorter format
- A phase indicator
- Greater improvements regarding the image
