Sigma AES/EBU interconnects feature Shunyata Research's exclusive patent-pending TAP Polarizer technology. TAP reduces electromagnetic polarization distortion. ZiTron technology, Ohno Continuous Cast Copper, VTX (hollow core) conductors with expensive fluorocarbon dielectrics make for a true reference quality interconnect. KPIP eliminates burn-in issues. As the performance vanguard in the Shunyata Research's cable line-up; Sigma Series cables take the term 'state-of-the-art' to an entirely new level with the introduction of two new cutting-edge technologies. The first, integrated in the Sigma Series interconnects and digital cables, is the 'Transverse Axial Polarizer' (TAP). It minimizes a form of 'micro-distortion' identified as 'electromagnetic polarization' that reduces 'sonic glare' while increasing clarity and coherency. The second technology incorporates a proprietary device called HARP that reduces current resonances within speaker cables – a concept somewhat analogous to the use of diffusion panels to treat frequency irregularities in room acoustics.
“The Sigmas are flat-out fabulous across the key areas of dynamic fluidity and stability, soundstaging and imaging, resolution of detail, tonal complexity, and musical completeness.”
—The Absolute Sound, July/August 2018
"By removing so much noise and interference from the path, Shunyata's flagship cables renewed my passion for recordings I'd begun to take for granted."
– Vance Hiner, The Audio Beat