Experience the pinnacle of power cord performance with Shunyata Research's Sigma-X series, a groundbreaking advancement in cable design since 1998. The Sigma-X power cables represent a quantum leap in audio fidelity, delivering unmatched clarity and dynamic range. Featuring the revolutionary TAPc technology, Sigma-X dramatically reduces noise and enhances timing, while the patented QR/BB module offers unprecedented power delivery and silence. The third-generation NR circuit improves transient speed and transparency across all components, and the KPIPv2 conditioning process ensures optimal performance from the start. Available in three distinct models—QR, NR, and XC—the Sigma-X cables elevate your audio system with exceptional precision and immersive sound, transforming every listening experience into a profound sonic revelation.