

Shunyata Research Sigma-X Ethernet Cable | Reference Network Audio Cable
Shunyata Research Sigma-X Ethernet is a reference network cable for streaming systems. It uses Shunyata's proprietary SR-6a construction with 100% shield coverage and Telegartner connectors, plus 35 TAPc elements and dual-element CMode filtering for common-mode noise, and four days of KPIP v2 processing.
Use it for the network links in a streaming system, such as router or switch to server or streamer. If your DAC takes its signal over USB, see Sigma-X USB for that connection. See all our Shunyata Research cables and power products.
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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SIGMA-X ETHERNET
Shunyata Research Sigma-X Ethernet is a reference network cable built on Shunyata's proprietary SR-6a construction, with 100% shield coverage, PTFE dielectric, Telegartner connectors, 35 TAPc elements, dual-element CMode filtering and four days of KPIP v2 processing.
WHO IS SIGMA-X ETHERNET FOR?
Streaming systems that use Ethernet between a router or switch and a music server, streamer or other network audio component.
TECHNOLOGY
![]() | TAPc (Transverse Axial Polarizer) is Shunyata Research's patent-pending technology that couples to the electromagnetic fields around signal conductors. It works like a polarizer, passively reducing electromagnetic distortion. Sigma-X Ethernet uses 35 TAPc elements. |
![]() | CMode is Shunyata Research's filter for common-mode noise, which is harder to measure and remove than differential noise. Shunyata designed it to reduce that noise without the compression effects of conventional filters. Sigma-X Ethernet uses a dual-element CMode filter. |
![]() | KPIP v2™ is Shunyata Research's proprietary Kinetic Phase Inversion Process, applied to the conductor metals. Sigma-X Ethernet receives four days of KPIP v2 processing, which Shunyata says greatly reduces burn-in time. |
SPECIFICATIONS
Cable Type: SR-6a / proprietary Shield: 100% coverage Dielectric: PTFE Connectors: Telegartner Characteristic Impedance: 100 ±15 ohm TAPc: 35 elements | CMode: Dual element KPIP v2 Processing: 4 days Color: Black flex Standard Length: 1.50 meters Safety Assurance: |
CHOICE AUDIO GUIDANCE
Use Sigma-X Ethernet for the network portion of a streaming system. It does not replace USB, AES/EBU, S/PDIF, or clock cables elsewhere in the digital chain.
FREQUENTLY ASKED QUESTIONS
What connectors are used?
Telegartner connectors.
Does Sigma-X Ethernet use CMode?
Yes. Shunyata specifies a dual-element CMode filter.
What is the standard length?
1.50 meters. We list lengths up to 3 meters in 0.25-meter steps.


