Sigma

Sigma sits near the top of the Shunyata range, with the company's more advanced conductor treatment and shielding applied throughout. As with every level, it covers mains, signal and digital cables at the same position. Below it, Alpha is the level at which the Shunyata approach shows clearly on a resolving system, and for many systems it is the sensible ceiling. Above it, Omega is built in small numbers for systems where power and signal are treated as components in their own right. At this level the distributor matters as much as the cable. A Sigma cable into an inadequate distribution point is not the best use of the money, and we would suggest addressing both together.