AudioQuest NRG-X2 Power Cable (C7)

The AudioQuest NRG-X2 is a two-pin power cable that supplies source components with a C7 figure-eight connector — and is built noticeably more carefully than the bundled cable it's replacing.

A heads-up right away, because this is where most ordering mistakes happen: the NRG-X2 has a C7 coupler on the device side — the flat figure-eight with no ground pin — and a two-pin Europlug on the mains side. That makes it the cable for small, ungrounded components, not for your integrated amplifier.

Why the NRG-X2?

Because power is the first ingredient in your chain, and it's exactly this ingredient the free cable in the box skimps on. AudioQuest fits direction-controlled Long-Grain Copper (LGC) here: copper with noticeably fewer grain boundaries than off-the-shelf stock, so less distortion arises at the transitions. Add to that the Semi-Solid Concentric geometry — seven substantial strands in a single, even layer around a core wire, instead of 37 strands getting in each other's way. The plug contacts are cold-welded rather than soldered.

What you hear

No reinvention of your system, more of a tidy-up: the background gets quieter, transients start more precisely, and the bass gets contour instead of mere bloom. That shows up most clearly on small digital sources otherwise hanging off the thinnest imaginable figure-eight cable. Anyone expecting an explosion will be disappointed; anyone looking for a clean foundation will nod with satisfaction.

Who is the NRG-X2 for?

For anyone running a streamer, compact DAC, CD player, or digital radio with a C7 input who wants to take the first sensible step with their power cable. Straight talk: if your device has a three-pin C13 input, the X2 simply won't fit — then the NRG-X3 is your cable. The same goes if your device needs a ground conductor. And for power amps, it's simply too thin at 2.5 A.

Our verdict

The NRG-X2 is the most honest entry point into the subject of power cables: affordable, cleanly made, without esoteric fanfare. It gets more out of small sources than its spot at the very bottom of the NRG line would suggest. An upgrade with a sense of proportion — and the right starting point before you start thinking about mains filters.

Technical data

• Type: power cable, AudioQuest NRG series (entry level), two-pin
• Conductor: Long-Grain Copper (LGC), direction-controlled
• Geometry: Semi-Solid Concentric — seven strands in one layer around a core wire
• Gauge: 1.04 mm²
• Current rating: max. 2.5 A at 230 V
• Mains-side plug: two-pin Europlug, no ground conductor
• Device-side connector: IEC C7 (figure-eight, two-pin)
• Termination: cold-welded plug contacts
• Jacket: black PVC with red stripes
• Available lengths: 1 m, 2 m, 3 m, 4.5 m, 6 m
• Included: 1 power cable in the length selected

Frequently asked questions

What connector does my device need for the NRG-X2?

A C7 input: two round contacts in a flat figure-eight shape, with no ground pin. You'll find this connector on streamers, compact DACs, CD players, and radios. If your device instead has a three-pin C13 input, you need the NRG-X3. A glance at the old cable makes it clear in ten seconds.

Why is the NRG-X2 only two-pin?

Because its counterpart is too. Devices with a C7 socket have no ground connection, so the cable doesn't carry one either. That's why a two-pin Europlug sits on the mains side. If you want a grounded feed despite the C7 socket, reach for the NRG-Y2 instead — same coupler, but a three-pin mains plug.

How much current can flow through the cable?

Up to 2.5 A at 230 V. That's generous for small source components and too little for amplifiers. Streamers, DACs, and players stay well below that. Anything that draws heavily on impulse belongs on a three-pin cable with a larger gauge, such as the NRG-X3 or NRG-Z3.

Does the cable's direction really matter?

AudioQuest orients the copper conductors according to their grain structure and marks the direction with an arrow on the jacket. The idea behind it: captured interference should be led away from the device in a controlled way. You don't have to believe that — just install the cable the way the arrow indicates, and it's set up correctly.

Why buy the NRG-X2 at HD Zürisee?

Because we'll save you from the most common wrong purchase: the wrong plug type. Send us your device's brand and model, and we'll clarify whether C7, C5, or C13 fits. Our team in Wädenswil advises you with no pressure to buy — 044 680 22 00 · WhatsApp 076 534 22 00 (text only, no calls) · shop@hdzuerisee.ch.

Pairs well with

A C7 connector is usually found on compact sources — browse the Streamers, DACs, and CD Players. You'll find the next step up in power under Mains Filters & Power Conditioning, all other models in the Power Cable overview and in the AudioQuest world.