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EU Registered Design No. 002544171

Patent No. GB2547263

Tunable Audio Cables

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Experience660-S Hi-Fi speaker cable with tunable REDpurl™ Adaptive Geometry

£660 per metre pair

Audition at home with our 60 Day money back guarantee*

Free UK mainland postage


The Experience660-S tunable speaker cable showing its blue and red heavy gauge conductors forming repeating loops along its length terminating with banana plugs.


Available with banana or spade terminations.

Choose your preferred cable length and termination and click on ‘Buy Now’.

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For international shipping charges beyond the UK, call us on +44 (0) 1372 800605.

Please contact us for bespoke requirements.


£660.00 per metre pair

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Free UK delivery

Experience660-S Hifi speaker cable with tunable geometry

“…amongst those using silver-plated copper [cables] Experience660-S would seem to be in the upper tier of performance even before you take the tuning capability into account. Add in the tuning options and Wire on Wire Experience660-S makes excellent sense for those willing to take the to time fine-tune their system. The sound such systems produce can only be enhanced by the ‘tuneability’ of the Wire on Wire approach.”  Review Paul Messenger HIFi+ 2020.

The Experience660-S is a meticulously handcrafted speaker cable using our unique REDpurl™ Adaptive Geometry employing a true flat-braided construction.

Its combination of exceptional levels of audio reproduction and ability to fine-tune makes it a ‘live’ configurable hifi speaker cable for your current and future needs.

Tuning is achieved by inserting small 'spacers' into specified loop positions as shown below. These 'spacers' are made from a high-end material that also reduces vibration in the speaker cable.

  • Asymmetric construction using our patented REDpurl™ Tunable Adaptive Geometry
  • Six silver-plated, PTFE insulated, multi-stranded copper wires per cable
  • Unique tunable design allowing high performance matching between audio components
  • Asymmetric, intersecting, non-parallel conductors designed to reduce crosstalk, capacitance and harmonic modes
  • Triple gauge conductors fully reproduce tonal and dynamic transparency across the music spectrum
  • True flat braid construction
  • Tuning spacers made of high-damping material to reduce resonance and vibration.
  • Designed and hand-built in Britain
  • 60 day, money-back guarantee

The key to its success is the space we have incorporated into its design. Uniquely, it allows you to alter or tune (using spacers at specific loops along the speaker cable) a key component in signal transfer, that of the relationship between conductors, which plays such an important part in releasing the full potential from your hifi system.

Soundstage size and depth, image focus, size, solidity, depth perception and dynamics can be fine-tuned using our tunable speaker cable geometry as outlined below.

Our audio cables are hand-built to order so please contact us for details of delivery times or to discuss your individual requirements.


The Experience660-S speaker cable and its terminations with a tuning spacer inserted into one of its loops for tuning purposes alongside the specialised vibration absorbing spacer unit


Our patented geometry used in our speaker cable designs indicating its benefits such as reduced capacitance, cross talk and harmonic mode inhibition


“…it was a real pleasure to evaluate a speaker cable that actually did what it said on the tin it would do. That the increase in image definition and depth was claimed and executed is a real milestone in a reviewer’s experience of cables and makes worrying about ‘synergy’ almost redundant.” Review Dominic Marsh Hifi Pig March 2018

Stuart Dunn of 3SquareAudio uses the Experience660s cable for product development of their speakers. “It creates more silence and blackness; it’s what it’s removing that I like, so I can focus more on what’s left, listening with greater ease to the music.” 


How tuning a hifi speaker cable improves your audio system’s performance

Our tunable hifi speaker cables are not tone controls but address three main areas of performance found in hifi systems that can fall short due to mis-matched connections: mid-band clarity and top-end air, soundstage size and precision and bass weight and warmth.

To help you get the best out of your system we suggest you explore these tuning references for our interconnect and speaker cables, which you can then modify at home according to personal taste and system requirements.

For further details on what you might expect to hear when using a tunable hifi audio cable system we have written a series of article entitled ‘What do the best audio cables sound like’.


Technical overview

  • Geometry: REDpurl™
  • Conductors: Silver-plated copper
  • Conductor formation: Multi-stranded
  • Capacitance: 69pF/m (non-tuned)
  • Insulation: PTFE
  • RFI rejection: Modified twisted pair
  • Shielding: N/A
  • Directionality: Directional
  • Termination: Banana or Spade


*Customer care

You can audition any of our cables at home using our 60 day money back guarantee. We are confident enough in the performance of our cables to be able to offer our customers a 60-day money back guarantee, which means if you are not completely satisfied you can send the cable back for a full refund within 60 days of purchase. See full terms and conditions on returning products. (See FAQ for further details)


Designed and made in Britain