SUPRA RONDO 4x2.5 Combicon Bi-Wire

Pair of SUPRA Rondo 4x2.5 cables in Bi-Wire configuration for acoustic loudspeakers, factory terminated with interchangeable banana plugs and/or spades.

Length: 2 metre pair

SUPRA Rondo 4x2.5 is a 2.5 mm² four-core cable.

Extremely flexible, it contains tin-plated OFC copper multi-strands with a purity grade of 5N, i.e. greater than 99.999%. The insulating coating consists of a special, ionically stable PVC, which minimises corrosion of the tin-plated surface and guarantees excellent acoustic performance.

The conductors are individually tinned OFC copper (with pure tin) in such a way as to minimise the skin effect by acting as a semi-Litz-type cable. In addition, this tinning (not silvering!) process helps to limit conductor jumps, thus transforming the multi-wire cable into a kind of solidcore.
Supra claims that the advantage of pure tin over silver lies in the fact that copper and tin 'mix' together rather than creating a kind of diodic 'barrier' like that between copper and silver. In addition, pure tin protects OFC copper from oxidation.

SUPRA concentric cables are extremely flexible and, being helically wound with a small pitch, have low inductance and low radiation, as well as a high fatigue tolerance resulting from frequent bending or vibration. The small pitch processing is considerably more complex and expensive, requires special machinery and is not often found in products of other brands.