Kimber 4TC speaker cable

• Kimber's first cable to combine their High-Purity, 102% IACS copper alongside Teflon® insulation


• VariStrand™ copper conductors


• Eight conductors per channel (4 positive and 4 negative)

4TC sits at the start of the TC range, the difference between the cables being the number of conductors they use: four positive and four negative on 4TC, eight on 8TC and – you guessed it - twelve on 12TC.

It’s arguably one of the best value speaker cables that KIMBER KABLE® offer, with its use of materials which set the standard for the higher-end cables in the range.

Like the rest of the range, 4TC also benefits from Kimber’s renowned woven geometry, with its natural filtering ability allowing a cleaner audio signal to get through, leaving you to hear more of what your equipment is capable of.





Put simply, different gauges of wire favour different frequencies; the thicker ones, bass, the medium ones, mids and the thinnest, treble. Hence, each 4TC conductor is made up of varying gauges of wire to give an even, accurate and efficient distribution of frequencies, presenting a natural, unforced and engaging musical performance.

Find out more about VariStrand® cable



Until the early 1900s there was no way to tell how conductive a piece of copper was. To solve this problem, the IACS (International Annealed Copper Standard) was formed to establish a standard measurement for the conductivity - this became the benchmark of 100% IACS.

While the purity percentage of cable is important, it's the IACS conductivity measurement that matters most. Achieving levels greater than 100% is expensive, which is why you’ll most commonly see a figure of at least 99% closely followed by the acronym OFC - Oxygen Free Copper or OFHC - Oxygen Free High Conductivity (oxygen being the most well-known impurity).

In fact, no copper is truly oxygen free… even the purest contains traces. OFC is simply a broad term that’s bandied about and doesn’t really mean anything: once again it's the IACS figure that tells us just how good the copper is as a conductor.

Copper refining techniques have improved dramatically since the adoption of the standard and more impurities can now be removed: Kimber use copper wire at 102% IACS. So, you can rest assured that when you buy 4TC, you will receive a cable using exceptionally pure copper with exceptionally high conductivity - 102% IACS to be exact!



The type of cable insulation - or dielectric - has significant effect on. Most of Kimber’s interconnects and speaker cables use a form of Teflon® (fluorocarbon or PTFE – the same thing); this is expensive but has the advantage of being able to be applied at high pressure, and thus a lower temperature, minimising any heat damage to the copper and maintaining its purity.

All dielectrics have the effect of absorbing some of the voltage (signal) conducted by a cable. The voltage is then fed back into the signal slightly later, slowing it down. This is expressed as a figure known as a dielectric constant.

The perfect figure is 1, in which the dielectric does nothing to slow the signal down. While this is desirable in an audio cable, it can only be achieved by insulating the conductors with a vacuum – a touch impractical!

As well as being able to be applied at lower temperatures, Fluorocarbon (Teflon®) also has the distinct advantage of a very low dielectric constant, making it doubly impressive for maintaining signal fidelity.

8 Hyper-pure (102% IACS) copper conductors

Teflon® insulation

Terminated with KIMBER KABLE® Bananas or UltraPlate™ Spades

(Cp) parallel capacitance: 136 pF / meter

(Ls) series inductance: 0.225 uH / meter

(Rdc) dc loop resistance: 0.016 Ohm / meter








We offer a number of additions and treatments to take the performance of your speaker cable to the next level. To find out more, click on the 'What's this?' link next to each icon above right.






Don't forget! It may be pre-owned, but we’re confident in the performance of this product that it is covered by our 60 Day Home Trial with Money Back Guarantee. Buy the product and if you're not completely satisfied, you can return it within 2 months for a refund. For full details click here.

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