
Shunyata Research Sigma-X XC Power Cable | Power Distributor Cable
Shunyata Research Sigma-X XC is the Sigma-X power cable built for one job: the wall connection to a Shunyata power distributor. It shares the Sigma-X construction, with 6-gauge VTX-Ag conductors, two TAPc polarizers and CopperCONN connectors, but leaves out the NR filter because Shunyata's distributors already filter the power.
For your components, choose Sigma-X NR, or Sigma-X QR for high-powered amplifiers. See all our Shunyata Research cables and power products.
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SIGMA-X XC POWER CABLE
Shunyata Research Sigma-X XC is the Sigma-X power cable designed for the wall connection to a Shunyata power distributor. It uses 6-gauge VTX-Ag conductors, two TAPc polarizers, CopperCONN connectors, fluorocarbon dielectric and four days of KPIP v2 processing, with no NR filter.
WHO IS SIGMA-X XC FOR?
Systems with a Shunyata power distributor, for the cable that runs from the wall outlet to the distributor. Shunyata's distributors filter the power extensively, so an NR filter isn't needed at the wall connection.
SIGMA-X XC VS. NR AND QR
XC has no NR filter. Sigma-X NR adds Gen3 NR noise reduction for use on components, and Sigma-X QR adds patented QR/BB on top of that, particularly for high-powered amplifiers.
TECHNOLOGY
![]() | TAPc (Transverse Axial Polarizer) is Shunyata Research's patent-pending technology, developed for its reference signal cables and made small enough to use in power cords. Sigma-X XC uses two TAPc polarizers. |
![]() | VTX-Ag conductors combine a pure-silver center conductor with a concentric pure-copper outer conductor. Sigma-X XC uses this geometry at 6 gauge. |
![]() | CopperCONN connectors use pure copper contacts, which have higher conductivity than the brass used in many audio connectors. Sigma-X XC uses CopperCONN AC and IEC connectors with carbon-fiber bodies. |
![]() | Fluorocarbon dielectric offers very low dielectric absorption, high dielectric strength and excellent heat resistance. |
![]() | KPIP v2™ is Shunyata Research's proprietary Kinetic Phase Inversion Process, applied to the conductor metals. Sigma-X XC receives four days of KPIP v2 processing, which Shunyata says greatly reduces burn-in time. |
SPECIFICATIONS
Conductors: VTX-Ag Gauge: 06 Construction: 1″ tube Dielectric: Fluorocarbon Noise Reduction: None Tech: TAPc polarizer 2x | AC Connector: CopperCONN™ Carbon-Fiber IEC Connector: CopperCONN™ Carbon-Fiber (C15 or C19) KPIP v2 Processing: 4 days Color: Black flex Standard Length: 1.75 meters Safety Assurance: |
CHOICE AUDIO GUIDANCE
Use XC primarily for the wall-to-Shunyata-distributor run. For components, choose NR or QR based on system requirements.
FREQUENTLY ASKED QUESTIONS
Does XC include NR filtering?
No. Shunyata specifies no onboard noise-reduction filter for XC.
Can XC feed a power distributor?
Yes. That is its primary intended application.
What about a power conditioner from another brand?
Shunyata says the NR-equipped models will likely give a performance benefit with other manufacturers' power conditioners.
What is the standard length?
1.75 meters.




