

Shunyata Research Sigma-X Ground Cable | Reference Chassis Ground Cable
Shunyata Research Sigma-X Ground Cable is a reference grounding cable for compatible Shunyata grounding applications. It uses 6-gauge VTX-Ag construction together with TAPc and CMode modules, fluorocarbon dielectric materials, STIS v3 termination, and four days of KPIP v2 processing.
Use Sigma-X Ground where the connected components and grounding system provide the appropriate grounding interfaces. Choice Audio can help confirm the correct termination and application before ordering.
Most products are ordered from the manufacturer, and lead times range from a few days to several weeks. We'll confirm your exact ship time before payment is processed. Free shipping on orders of $1,000 or more within the lower 48 states; smaller orders ship at FedEx rates. Alaska, Hawaii, and U.S. territories: please contact us for a shipping quote.
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Wondering how this will sound in your system? Many products are eligible for our 10-day Home Audition Program, so you can listen in your own home before deciding to keep it. Call 651-217-2083 or email sales@choiceaudio.com for details.
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Who is Sigma-X Ground Cable best suited for?
Reference systems using compatible Shunyata grounding applications where a dedicated chassis-ground connection is required.
Technology
Sigma-X Ground combines Shunyata technologies for low-resistance grounding, electromagnetic control, common-mode noise reduction, termination flexibility, dielectric performance, and conductor conditioning. Its model-specific construction uses 6-gauge VTX-Ag, TAPc, CMode, STIS v3, fluorocarbon dielectric materials, and KPIP v2 processing.
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TAPc
Patent-pending Transverse Axial Polarizer technology couples to electromagnetic fields surrounding conductors and is designed to reduce electromagnetic distortion.
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CMode
CMode is Shunyata's common-mode filtering technology, designed to reduce common-mode noise without the compression effects associated with conventional filtering.
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STIS v3
STIS v3 is an interchangeable terminal system using solid-copper terminals that can be changed to match the grounding connection in use.
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VTX-Ag
Sigma-X Ground uses 6-gauge VTX-Ag conductor construction as specified by Shunyata Research.
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Fluorocarbon
Fluorocarbon dielectric material is selected for low dielectric absorption, high dielectric strength, and heat resistance.
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KPIP v2
Shunyata Research's proprietary Kinetic Phase Inversion Process is applied to conductor and terminal metals. Sigma-X Ground receives four days of KPIP v2 processing.
Specifications
Cable type: VTX-Ag
Gauge: 06
Dielectric: Fluorocarbon
Connectors: STIS v3
TAPc/CMode module: Single element / 2 modules
KPIP v2: 4 days
Standard length: 1.00 m
HiPOT: 1,200 VAC
Choice Audio guidance
Ground cables are application- and termination-specific. Confirm the grounding interface on the component and grounding system before ordering.
Frequently asked questions
Is this a power cable?
No. It is a dedicated grounding cable for compatible grounding applications.
What is the standard length?
1.00 meter.
Can Choice Audio verify compatibility?
Yes. Send us the component and grounding-system models and we can help confirm the application.