Supra Ply 3.4S Screened Speaker Cable

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Ply series loudspeaker cables, by Supra Cables.

Supra Ply 3.4S is a screened, large-section, low resistance cable which overcomes the usual limitations associated with increased cable size (inductance and increased oxidation) by using a proprietary pure tin plating. The unique square-shaped design is the result of mangled braid cores laid out on top of each other, which reveals the potential of dynamics and transients of your AV system. It also reduces interference and interaction distortion.

Besides significantly improving on the sound quality of most systems compared to cheaper, inferior grade cables, Supra Ply is also ideal for outdoor use, or in automobile, car, truck, and even marine applications, where salt water may quickly corrode a pure copper cable. Ply 3.4S is extremely well suited to medium-to-high resolution systems.

Screened / shielded cables both radiate and pick-up less noise compared to non-shielded. When installation environment gain from maximal noise immunity, Supra shielded speaker cables are the perfect choice.

The result is immediately lowered noise floor and increased dynamics of the hi-fi system. Especially the so called micro dynamics; tiny notes, phrasing, the small differences which make music come alive and not sounding artificial will appear and suddenly stand out from a pitch black background, free from noise, a truly remarkable discovery for most music lovers.

Ply 3.4S is available with Ice Blue coloured outer insulation only.

Please note this is a SINGLE WIRE cable. For a stereo pair (left / right), please order two (x2) units.


  • Brand: Supra Cables
  • Range: Ply
  • Type: Single Wire, 2 Core + Screen
  • Construction: Multi-Strand Pure Tin Plated OFC
  • Diameter: 3.4 mm

Length Options

Supra Ply 3.4S is available at £10.00 per-metre (ex-VAT), in any length up to 100 metres.

Lengths of 1.00 - 25.00 metres may be ordered directly using the purchase options above. For all other lengths please contact us to discuss your requirements.

Termination Options

Supra Ply 3.4S can be supplied unterminated, or we can terminate each end of your cable with any of the following connectors:

  • CCS 4 mm Banana Plugs (Pair)
  • CCS 8 mm Spade Connectors (Pair)
  • Supra Cables 4 mm BFA Combicon Connectors (Pair)
  • Supra Cables 8 mm Spade Combicon Connectors (Pair)

Termination Cost

The price for our professional termination service includes the cost of your chosen connectors, plus labour and materials.

Please note that because this is a screened / shielded cable, should you choose any of our termination options, we will connect the screen as standard to the negative terminal (black) at the amplifier end of your cable.

If you wish to terminate this cable yourself, please select "None / Unterminated" for your amplifier / loudspeaker termination options, and order your required connectors from our wide range of termination options.

More Information

Delivery and Returns

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Shipping method Delivery Time Cost

Please be advised that we may upgrade your delivery to a better service if we deem it appropriate to designated destinations at no additional cost. Please view our returns policy.
*Quoted delivery times are estimates and apply to normal working days for in stock items.


Supra Cables
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Cable Configuration:
  • Single Wire

Cable Information

Cable Type:
  • Speaker Cables
Pure Tin Plated OFC
White / Ice Blue


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Payment Methods

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Our Advantages

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  • Clear, simple returns policy. Details
  • UK-based company, established since 1985. Details
  • Visit our London showroom to demo a huge selection of headphones, earphones & portable players. Details

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