Tara Labs RSC Prime Bi-Wire Speaker Cables — 15′ Pair, Bananas

Tara Labs RSC Prime Bi-Wire Speaker Cables — 15 Foot Pair, Banana Terminated, Rectangular Solid Core Conductors, Made in Oregon

Tara Labs make cable and nothing else, and they have been doing it since 1984. The company’s reputation rests on one idea it has spent four decades refining: Rectangular Solid Core. Where almost every other cable uses round strands bundled together, Tara Labs extrudes a solid conductor with a rectangular cross-section — one continuous piece of copper per run, not a rope of thin wires.

Rectangular Solid Core

The reasoning behind it is properly engineering rather than marketing. At audio frequencies, current does not distribute itself evenly through a conductor; it crowds toward the surface, an effect that gets worse as frequency rises and as conductor diameter grows. Tara Labs’ founders concluded that around 18 gauge was the point where that penalty effectively disappeared for audio, and shaped their conductor to present the right cross-section rather than simply piling on copper. Bundled strands introduce a second problem the solid core sidesteps entirely: every strand-to-strand contact in a stranded cable is a small, oxidising, uncontrolled junction, and there are thousands of them along a run.

Properly Terminated for Bi-Wire

These are the bi-wire version, and they are terminated for it properly: a single set of banana plugs at the amplifier end, and a doubled set at the speaker end. That is what bi-wire termination is supposed to mean and often does not — plenty of cable sold as bi-wire is separated internally but finishes in one pair of plugs, leaving you to keep the speaker’s factory jumpers fitted and get none of the benefit. These give you four connections at the speaker, so the high-frequency and low-frequency binding posts are fed independently, jumpers out.

Why Fifteen Feet

Fifteen feet is the length that solves real rooms. Most cable sold second-hand is eight or ten feet, which covers a system where both speakers sit close to the rack and nothing has to cross a doorway. Fifteen feet reaches the far speaker in a wide room, runs along a baseboard rather than across a floor, and gives you the slack to move the rack later without buying cable again.

Separate Runs Inside the Jacket

Inside the jacket, the low-frequency and high-frequency runs are separate rather than sharing one path, so the large currents feeding a woofer stay away from the small ones feeding a tweeter — and because the terminations follow the construction all the way to the speaker, that separation is maintained end to end rather than being undone at the last inch.

A Word on Mass

There is a great deal of cable here, and the scale tells the story better than any adjective: each run weighs 3.7 lbs, so the pair comes to 7.4 lbs. That is very nearly a quarter of a pound for every foot of cable. Solid rectangular conductors instead of thin strands, separate runs carrying the bi-wire configuration rather than one shared pair, and fifteen feet of all of it in each cable — you feel the difference the moment you pick one up, and nothing about it resembles the wire that came in the box with a receiver.

How It Was Sold

Cable of this construction was never sold cheaply. Tara Labs supplied the RSC Prime line to dealers by the foot and it was made up and terminated to order, at high-end prices — a set at this length, in this configuration, was a serious purchase when it was new. It is being offered here for a small fraction of that.

Condition

Condition is very good.

Built in Oregon

Every Tara Labs cable is built by hand in Oregon.

Who This Suits

Speaker cable is the part of a system people upgrade last and regret waiting on. At this length, from this manufacturer, in a bi-wire configuration, this is a set that will outlast several rounds of electronics. Available for pickup in Kanata, or shipped across Canada and internationally — we have sent equipment to fifteen countries in the past year, each piece packed in-house in 275 lb test double-wall boxes. Live shipping rates for your address are calculated at checkout.

Tara Labs RSC Prime Bi-Wire Speaker Cables Specifications

• Type: bi-wire speaker cable, pair
• Length: 15 feet each
• Conductor: Rectangular Solid Core, solid extruded copper
• Termination: banana plugs — single pair at the amplifier end, doubled at the speaker end
• Bi-wire: true four-connection termination at the speaker; no jumpers required
• Weight: 3.7 lbs each cable, 7.4 lbs the pair
• Made in: Oregon, USA
• Condition: Very Good

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