Shunyata Digital Power Cable
Product of the Year Award-Winning Shunyata Sigma Digital Power Cable Doubles as an Independent Power Conditioner: Dramatically Improves Digital Front-End and Computer-System Components
Specifically created to eliminate the extreme high-frequency noise associated with all digital source and computer system components common in high-performance audio/video systems, the Shunyata Sigma Digital is the finest power cable of its kind. The result of 15 years of patented science, engineering, and parts development, and winner of The Absolute Sound's Product of the Year Award, Sigma Digital essentially functions as an independent power conditioner. Sigma Digital represents the first line of defense that prevents noise from being shared as interference with other electronics in your system. Intended for front-end digital components, Sigma Digital employs massive eight-gauge conductors and does not compromise DTCD (Dynamic Transient Current Delivery). (For digital amps, use Alpha HC or Sigma HC.) You've never heard your system sound as effortless as it will when paired with Sigma.
"What I can say is that the Sigma power cords are the best I have ever used and that each one's performance exceeded my expectations. They provided more than a mere incremental improvement in my system over the company's previous offerings and the list prices reflect that. While an entire "loom" of the cords will be out of many peoples' reach, even individual cords yielded impressive results."
– The Audio Beat
Significantly Upgrades Performance of Any Digital Component
Sigma Digital utilizes Caelin Gabriel's proprietary ZiTron circuit, specifically designed to reduce the frequencies of noise most commonly associated with analog component power supplies. Noise-filter elements used in Sigma Digital are entirely passive and non-reactive, so they will never get in the way of current flow or interfere with the power supplies of the components. In other words, Sigma Analog is complementary to all electronic power supplies within its classification and allows all components to perform at peak efficiency both in terms of current delivery and lowered noise. No matter how complex or well designed a digital power supply might be, Sigma Digital will deliver a consistent, dramatic performance upgrade to literally any digital component application.
"Shunyata continues to push the state-of-the-art in AC power. The Sigma is the best cord Shunyata has made, improving on previous models by deepening background silences , increasing resolution at the lowest levels, rendering textures more realistically, allowing the rest of your components to sound their best. Robert Harley's reference."
- The Absolute Sound, 2015 Product of the Year Award
Extremely Efficient Noise Reduction Approach Eliminates CCI
The defining feature of each Sigma power cord relates to Shunyata's highest-performing ZiTron circuits, which measurably reduce noise at the first point of electrical contact with component power supplies. No power conditioner can capture noise at the first stage of a component's electrical circuit and isolate that noise from other components. This ultra-efficient means of noise reduction virtually eliminates CCI (Component-to-Component Interference) and protect electronics in the system from being affected by commonly shared noise. Essentially, Sigma power cords function as independent, high-current power conditioners. All three Sigma models cancel the specific frequencies of noise associated with the class of components for which they are designed: Digital, Analog, or High-Current.