Shunyata Research Sigma-X S/PDIF Cable | 75-Ohm Digital Coax Cable
Shunyata Research Sigma-X S/PDIF is a reference 75-ohm coaxial digital cable for the S/PDIF link between a transport, streamer or processor and a DAC. It uses SPC conductors with a 100% braided SPC shield, PTFE dielectric, gold/copper-contact connectors, PMZ construction, 35 TAPc elements, dual-element CMode filtering and four days of KPIP v2 processing.
Choose it for a true 75-ohm coaxial digital connection. For balanced 110-ohm connections, see Sigma-X AES/EBU. For clock links, see Sigma-X Clock-75 and Sigma-X Clock-50. See all our Shunyata Research cables and power products.
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SIGMA-X S/PDIF
Shunyata Research Sigma-X S/PDIF is a reference 75-ohm coaxial digital cable with SPC conductors, an SPC 100% braided shield, PTFE dielectric, gold/copper-contact connectors, 35 TAPc elements, dual-element CMode filtering, PMZ construction and four days of KPIP v2 processing.
WHO IS SIGMA-X S/PDIF FOR?
High-performance digital systems using a 75-ohm coaxial S/PDIF connection.
S/PDIF VS. AES/EBU
S/PDIF uses 75-ohm coaxial construction. Sigma-X AES/EBU uses a 110-ohm twinaxial design. Match the cable to the component interface.
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 S/PDIF 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 S/PDIF uses a dual-element CMode filter. |
 | PMZ (Precision Matched Z) is Shunyata Research's ultra-precise production standard. The extrusion and braiding machines run at a quarter of normal speed, so the conductor surface, dielectric extrusion and braided shield are held to very tight tolerances. |
 | KPIP v2™ is Shunyata Research's proprietary Kinetic Phase Inversion Process, applied to the conductor and terminal metals. Sigma-X S/PDIF receives four days of KPIP v2 processing, which Shunyata says greatly reduces burn-in time. |
SPECIFICATIONS
Cable Type: Coaxial Conductors: SPC Shield: SPC 100% braided shield Dielectric: PTFE Connectors: Gold/copper contacts, black chrome finish Characteristic Impedance: 75 ohm | PMZ: Yes TAPc: 35 elements CMode: Dual element KPIP v2 Processing: 4 days Color: Black flex Standard Length: 1.00 meter Safety Assurance: |
CHOICE AUDIO GUIDANCE
Use this cable for true 75-ohm S/PDIF connections. If your equipment uses AES/EBU or BNC clocking, choose the corresponding Sigma-X model.
FREQUENTLY ASKED QUESTIONS
Is Sigma-X S/PDIF 75 ohms?
Yes.
Does it use PMZ?
Yes.
What is the standard length?
1.00 meter. We list lengths up to 3.5 meters.