Sigma NR features an array of state-of-the-art technologies that combine to turn what looks like a power cord into a device that does the seeming impossible. Equipped with a built-in wide-bandwidth CCI noise-filtration system that reduces power-line and component-generated power-supply noise – as well as built-in, second-generation Zitron technology that measurably lowers dielectric distortion while preserving the integrity of the original audio signal – Sigma NR doubles as a power conditioner for the amplifier, preamplifier, or source component to which it’s connected. Indeed, the USA-made Sigma NR‘s meticulous design and vanishingly low resistance to peak current (DTCD) deliver unparalleled performance when used with even the most current-hungry amps. Shunyata’s Kinetic Phase Inversion Process (KPIP) – a groundbreaking conditioning method that not only eliminates the need for time-consuming burn-in on your end but also elevates the overall fidelity of your system. You will hear invaluable sonic benefits – blacker backgrounds, lifelike detail, inner depth, explosive dynamics, revealing textures – when listening to music with Sigma NR in your setup. And now, you won’t have to wait hours and hours for it to happen.
“The Sigma and Alpha NR Series AC cables have continued Shunyata Research’s move to greater noise reduction, definition, and transient speed from a lusher, fuller sound that characterized their earlier CX Series of AC cables circa 2009.”
—Steven Plaskin, Audiostream