Shunyata Research Python Helix Alpha CABO DE FORÇA COM 1,8M. The Python Helix under consideration here is a 10-gauge power cord with nine counter-rotating conductors braided into Shunyata's patented Helix geometry, which, according to the company, "dramatically reduces self-induced AC reactance while also providing exceptional immunity to RFI/EMI noise components." This geometry is so complex that it can only be created by hand. All Shunyata Helix conductors are drawn from certified CDA-101 copper, which is considered the purest copper available on earth (or any other planet, I am confident in saying). Connectors are the Shunyata-designed custom-made Venom IEC and plug, whose conductive parts feature Shunyata's proprietary silver-and-rhodium co-plating process. Shunyata cryogenically treats all conductors and connectors to -310 Fahrenheit; this is done onsite, instead of at an outside facility. I've had various talks with Caelin Gabriel, the president and design mind of Shunyata Research, and he's one detail-oriented fellow. I'm sure he considers an in-house cryogenic lab mandatory to achieving finished products to his standards. They are recommended for use with preamps, amps, analog gear, DACs -- anything that doesn’t spin a CD, DVD or SACD. The Python Alpha costs $995 USD per six-foot length.