AudioQuest NRG-Z2 2-Pole AC Power Cable at Vinyl Sound Toronto Canada

The NRG-Z2 is a low-distortion 2-pole AC power cable from AudioQuest (Irvine, California, USA), available at Vinyl Sound in Toronto, Canada. The top of AudioQuest's NRG Series in the 2-pole configuration, the NRG-Z2 steps above the NRG-Y2 by upgrading to Perfect-Surface Copper+ (PSC+) conductors in place of Long-Grain Copper, combining them with the same silver-plated drain wires and ZERO characteristic impedance found throughout the NRG Series. Terminated with an IEC C7 figure-8 plug and a 3-prong North American wall plug, the NRG-Z2 is a premium upgrade for any 2-pole-equipped audio or video component including DACs, network streamers, powered desktop speakers, gaming consoles, and media players.

The Challenge: Transient Intermodulation Distortion at the Power Cable

No matter how capable a component's internal power supply or how clean the AC source feeding it, distortion is still introduced within any AC power cable itself. The mechanism is Transient Intermodulation Distortion (TIM): induced radio-frequency noise modulates low-level audio and video signals at a point that no internal filter or power supply can intercept. In a conventional multi-strand power cable, this problem is compounded by strand-interaction distortion, where individual strands shift position relative to each other along the cable's length, creating continuously varying points of electrical and magnetic contact that generate additional distortion with every movement. Both mechanisms rob connected components of the quiet background and dynamic freedom they are designed to deliver.

Perfect-Surface Copper+ Conductors in Semi-Solid Concentric Topology

The NRG-Z2's defining advance over the NRG-Y2 is its conductor material. Where the NRG-Y2 uses Long-Grain Copper, the NRG-Z2 upgrades to AudioQuest's Perfect-Surface Copper+ (PSC+), the same conductor metal used in the company's high-performance interconnect and speaker cable lines. PSC+ is produced by applying proprietary metal-processing technology to ultra-pure, low-oxide copper at every stage of drawing and fabrication, resulting in a wire surface of extraordinary smoothness and purity. The astonishingly smooth and pure surface minimizes the distortion caused by grain boundaries and surface discontinuities that exist in any metal conductor, a level of refinement beyond what Long-Grain Copper can achieve. These PSC+ strands are arranged in AudioQuest's Semi-Solid Concentric topology, where strands are packed tightly enough that they cannot change position within the bundle along the full cable length, eliminating the strand-interaction distortion that conventional stranded cables generate continuously. The combination of PSC+ material quality and Semi-Solid Concentric geometry produces a conductor whose distortion contribution is among the lowest possible in a stranded power cable design.

Silver-Plated Drain Wires, Direction Control, and ZERO Impedance

The NRG-Z2 pairs its PSC+ conductors with silver-plated shield conductors on both the line and neutral arms. These direction-controlled drain wires capture RF noise induced into both shields and route it efficiently to the ground pin of the 3-prong wall plug, removing it from the signal path before it can reach the connected component's sensitive audio and video circuits. Direction control is applied to all conductors and shields: the non-symmetrical grain structure of every drawn metal conductor creates a directional RF impedance variation, and AudioQuest tests each batch by listening to determine the optimal orientation. Direction arrows on the connectors ensure correct installation for maximum noise drainage. ZERO characteristic impedance completes the picture by combining low DC resistance with zero opposition to rapidly changing current, ensuring the connected component receives its full peak current demand on every transient without the compression that non-zero-impedance cables impose.

Key Features

• Perfect-Surface Copper+ (PSC+) Conductors: AudioQuest's most refined copper conductor material, produced using proprietary metal-processing technology at every stage of drawing and fabrication. The astonishingly smooth and pure surface minimizes grain-boundary distortion and surface-discontinuity distortion beyond what Long-Grain Copper can achieve, delivering a cleaner and more transparent power supply to connected components.
• Semi-Solid Concentric Packed Topology: PSC+ strands are packed tightly within the bundle and maintain fixed positions along the full cable length, eliminating the strand-interaction Transient Intermodulation Distortion that conventional multi-strand power cables produce continuously during use.
• Silver-Plated Drain Wires: Direction-controlled silver-plated shield conductors on both the line and neutral conductors capture induced RF noise and drain it efficiently to the ground pin of the 3-prong wall plug, preventing it from reaching connected component audio and video circuits.
• ZERO Characteristic Impedance: Combines low DC resistance with zero characteristic impedance for fully uncompressed current delivery, ensuring the connected component receives its full peak current demand on demand without restriction or dynamic compression.
• Direction-Controlled Conductors and Shields: All PSC+ conductors and silver-plated drain wires are tested and oriented per batch for optimal RF impedance directionality, with direction arrows on the connectors to ensure correct installation and maximum noise drainage away from the connected component.
• 3-Prong North American Wall Plug: Provides the grounded connection needed to actively drain RF noise captured by the silver-plated shield conductors, making the ground path an active element of the noise-dissipation system rather than a passive safety conductor.
• Slim IEC C7 Device Plug: The compact figure-8 C7 plug fits the wide range of 2-pole-inlet audio and video components including DACs, network streamers, gaming consoles, Blu-ray players, powered desktop speakers, and set-top boxes.

Technical Specifications

Connections at a Glance

• 3-prong North American wall plug connects to any standard grounded 3-prong wall outlet, Niagara power conditioner outlet, or surge protector outlet; the ground pin actively carries RF noise drained by the silver-plated shield conductors
• C7 IEC figure-8 plug connects to the 2-pole AC inlet of DACs, network streamers, Sonos players, Bluesound NODE, powered desktop speakers, gaming consoles (PlayStation, Xbox), Blu-ray players, media streamers, and other C7-equipped components
• Direction arrow on connector indicates correct installation orientation for maximum RF noise drainage away from the component
• For 3-pole C13 inlet components, see the AudioQuest NRG-Z3; for the Wind Series step up, see the NRG Monsoon

Frequently Asked Questions

What is the AudioQuest NRG-Z2 power cable?

The AudioQuest NRG-Z2 is a 2-pole AC power cable and the top model of AudioQuest's NRG Series in the 2-pole configuration. It uses Perfect-Surface Copper+ (PSC+) conductors in a Semi-Solid Concentric Packed arrangement, silver-plated drain wires on both the line and neutral shields, ZERO characteristic impedance, and direction-controlled installation. It terminates in an IEC C7 figure-8 device plug and a 3-prong North American wall plug, with the ground pin serving as the active drain path for RF noise from both shields.

How does the AudioQuest NRG-Z2 compare to the NRG-Y2 and the NRG-Z3?

The NRG-Z2 sits above the NRG-Y2 and is the 2-pole counterpart to the NRG-Z3. Compared to the NRG-Y2, the key difference is the conductor material: the NRG-Y2 uses Long-Grain Copper (LGC) while the NRG-Z2 upgrades to Perfect-Surface Copper+ (PSC+), which has a smoother and purer surface for lower grain-boundary and surface-discontinuity distortion. Both cables share the same Semi-Solid Concentric topology, silver-plated drain wires, ZERO characteristic impedance, and 3-prong wall plug with active ground drain. The NRG-Z3 is the 3-pole C13 counterpart to the NRG-Z2, adding the same PSC+ conductor quality and silver-plated drain wires in a full 3-pole earthed design with a dedicated ground conductor rather than a drain path to the wall ground pin. For components with a 2-pole C7 inlet where the highest NRG Series performance is the goal, the NRG-Z2 is the top choice.

What is Perfect-Surface Copper+ and how does it differ from Long-Grain Copper?

Perfect-Surface Copper+ (PSC+) is AudioQuest's most refined copper conductor material, produced by applying proprietary metal-processing technology to ultra-pure, low-oxide copper at every stage of drawing and fabrication. The process results in a wire surface of extraordinary smoothness and purity, minimizing not only grain-boundary distortion but also surface-discontinuity distortion caused by irregularities on the conductor's outer surface. Long-Grain Copper (LGC) addresses grain-boundary distortion by producing fewer and longer crystalline grains, but does not achieve the same surface smoothness as PSC+. In power cable applications, where the conductor surface plays a role in RF noise behavior and in the quality of the power supply delivered to component circuits, PSC+ provides a meaningfully lower distortion baseline than LGC.

Why does the NRG-Z2 need a 3-prong wall plug if it connects to a 2-pole component?

The 3-prong wall plug on the NRG-Z2 provides a ground pin that serves as the active drain path for RF noise captured by the silver-plated shield conductors on both the line and neutral arms. The connected component uses a 2-pole C7 inlet with no ground contact at the component end, but the noise inducted into the cable's shielding is routed through the silver-plated drain wires to the ground pin of the wall plug, dissipating it at the outlet before it can reach the component's audio or video circuits. This is AudioQuest's practical approach to providing active RF noise drainage for 2-pole-inlet components by using the available ground connection at the wall outlet.

What components are compatible with the AudioQuest NRG-Z2?

The NRG-Z2 is compatible with any component using a 2-pole IEC C7 figure-8 power inlet. This includes DACs with C7 inlets, network streamers such as Sonos players and Bluesound NODE, powered desktop speakers, gaming consoles including all PlayStation and Xbox models, Blu-ray and 4K UHD players, cable and satellite set-top boxes, Apple TV, and compact audio components from Cambridge Audio, NAD, Rega, Naim, and many others. Always verify that your specific component uses a C7 inlet; components with a 3-pole C13 inlet require the NRG-Z3 instead.

Where can I buy the AudioQuest NRG-Z2 power cable in Toronto or Canada?

The AudioQuest NRG-Z2 is available at Vinyl Sound, an authorized AudioQuest dealer in Toronto, Canada. Vinyl Sound carries the full NRG Series power cable range in both 2-pole and 3-pole configurations and multiple lengths, and can assist with component compatibility verification and cable selection for customers throughout the Greater Toronto Area and across Canada.

What lengths is the AudioQuest NRG-Z2 available in?

The AudioQuest NRG-Z2 is available in lengths of 1m, 2m, 3m, and 4.5m, accommodating compact desktop setups as well as systems where components are placed further from the wall outlet or power conditioner. Contact Vinyl Sound Toronto for current stock availability across lengths.