Shunyata Research’s new Reference NR Line power cords were developed using the same materials science and technologies that make the Omega QR the market’s ultimate cost-no-object power cord. The Reference Line power cables are designed to be used with the worlds finest audio components.
There are three levels of performance in the Reference Line starting with the Delta v2 NR and Delta v2 XC models. The Alpha v2 is a level up from the Delta v2 and represents the best price-to-performance in the lineup. The Sigma v2 takes top honors in the line for those that must have the best. All three Reference models feature Shunyata Research’s exclusive VTX-Ag conductors that combine an ultra pure silver with a concentrically wound layer of OFE copper. This provides the speed and transparency of silver with the richness, tonal color and power of pure copper.
Using proprietary conductors and parts developed for the Omega QR, the Reference NR Series delivers pace-setting performance in each product category. Noise reduction technology and Shunyata Research’s own CopperCONN™ connectors propel the Sigma v2 NR cable to previously unattainable levels of performance.
Application: The Sigma v2 NR is an ideal power cable for source equipment like CD players, DACs, tuners, preamplifiers and it makes an excellent amplifier cable with its high-current conductors and exclusive noise reduction capabilities. The Sigma v2 XC is the ideal mate to the Sigma v2 NR to power your Shunyata Research power conditioner.
Noise is an insidious problem that originates from many sources, including audio components themselves. Shunyata Research power cords employ proprietary internal noise reduction filters that intercept noise, preventing it from propagating to other components.
NR filters are specifically engineered to be non-reactive and compatible with all power supply designs including high-power amplifiers. This multi-element, wide-bandwidth noise-reduction technology was developed by Shunyata Research’s medical division, Clear Image Scientific, to improve the performance of medical imaging systems in cardiology and neurosurgery.
Every facet of the Sigma NR power cord has been refined to deliver measurably superior Dynamic Transient Current Delivery.
DTCD™ Analysis is a technique that measures instantaneous current through low impedance electrical conductors and contacts. Shunyata Research uses it to optimize the design, specification and construction of parts and materials to ensure maximum current delivery performance. Each part, conductor, noise circuit and material inside the Sigma NR allows for maximum throughput of instantaneous current.
Listeners will experience earth-shaking low-frequency performance from even the highest-current amplifiers as well as dynamic contrasts unheard of outside of a live event. More than any other design parameter, Shunyata Research’s skill in eliminating resistance and maximizing peak-current delivery is unmatched.
Reference model cables feature an advancement in conductor technology that combines the transient speed and definition of pure silver with the warmth, power, and body of pure copper. VTX-Ag has a core conductor of pure silver with an outer concentric conductor of high-purity OFE copper. VTX-Ag provides significant improvements in dynamics, timing precision, and low-level resolution while preserving the subtle tonal, textural, and timbral signatures that bring music to life.
Shunyata Research has developed its own line of CopperCONN™ connectors that feature solid copper contacts that have superior conductivity compared to bronze or brass contacts used in common connectors.
These connectors are not just beautiful, they functionally reduce micro-distortions. They are hermetically sealed with an electrically inert compound that protects the contacts and wires from corrosion. This also ensures that the wires cannot become loose, fray or pull out from the head shell. This guarantees a lifetime of reliable performance that does not degrade over time.
The proprietary Shunyata Research, Kinetic Phase Inversion Process was created to significantly reduce the amount of time required to burn-in cables and power conditioners. It also has a performance enhancing effect above and beyond simply burn-in.
Four days of continuous KPIP™ processing dramatically reduces the ups and downs for new equipment and significantly improves sonic performance, delivering a relaxed and life-like presentation.
Wire: 06 VTX-Ag
Solid copper contacts
Flash of nickel for corrosion protection
Superior Contact Grip
NR Noise Reduction: >12 dB @ 1MHz
Continuity and Polarity Tests – by two technicians
HiPOT Tests for each cable
Cable spools tested for insulation breakdown @ 4,000 VAC
Length: 1.75 meters