Kubala-Sosna Realization Speaker Cables

The speaker cable is the link with the most current passing through it, and the link between the amplifier's voltage and the driver's motion. It is where mistakes are most audible — and where good engineering most rewards a serious system. Kubala-Sosna's speaker cables are sold in pair pricing because they are built as pairs, terminated with the listener's preferred combination of spade, banana, or flex-pin connector. Single-wire (SC1) covers most installations; Internal Bi-Wire (SC2, available at every tier except Imagination) gives the high-frequency and low-frequency conductors their own paths inside one jacket — preserving the bi-wire benefit without doubling the visible cable count behind the speakers.

Realization is the most fully featured OptimiZ4 tier — analog, digital across AES/EBU and S/PDIF, USB, Ethernet, DIN, the 50Ω coaxial cable that exists nowhere else in the line, plus speaker and power. Stereophile dedicated an article (“Kubala-Sosna Achieves Realization”) to its arrival. The right customer is the listener with a system at cost-no-object reference level who wants every link in the chain on the same statement architecture. There is no step-up inside the analog complement; Ovation is a speaker-cable-and-power-cord-only step beyond.

Realization as the speaker cable is the OptimiZ4 architecture between amplifier and driver — the link a complete Realization loom is built around. Single-wire SC1 is the standard configuration for the great majority of reference speakers from Stenheim, Boenicke, YG, Von Schweikert, Piega, and the statement tier above them; SC2 internal bi-wire is engineered for the specific speaker designs whose crossover architecture rewards it. Termination is whatever the binding-post geometry on the amplifier and speaker calls for — spade, banana, or flex-pin. There is one step beyond this in the catalog and it is Ovation. For nearly every listener who arrives at this price point, Realization Speaker is the destination cable in the chain.

Series: OptimiZ4™

Architecture: RevolutionZ™

Configuration options: Single Wire (SC1) / Internal Bi-Wire (SC2)

Termination options: Spade / Banana / Flex-Pin

Length range: 1.0m to 5.0m in 0.5m increments; 6m to 15m in 1m increments

Pricing formula: First-meter price plus per-additional-meter rate

Made in USA — Kubala-Sosna Research, East Hanover, NJ

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