Tellurium Q Cables

Tellurium Q Cables

Designed around a single stated goal: reducing phase distortion. They publish almost nothing about construction and ask to be judged on listening instead, which customers consistently do in their favour.

About Tellurium Q Cables

Est. 2009
Somerset, England
Made in England
Own Production
Since 2011
Stocked by FutureShop
80+
Products
Low Phase Error
Design Focus
Speaker, Analogue, Digital, Mains, Streaming
Cable Types

Tellurium Q build every cable around a single argument: any material in the signal path acts as an electronic filter whether the designer intends it or not, so the job is to make that filter as close to neutral as possible. Geoff Merrigan founded the company on that principle, coming to it from industrial chemistry and materials science rather than from audio.

The specific target is relative transient phase distortion, the smearing of the leading and trailing edges of sounds. The reference point is Bell Labs research from 1930 into phase distortion in speech, which found that distorted speech carried audible artefacts that were extraneous to the speech and transient in character. Tellurium Q state their focus as the phase relationships in a system, and they ask to be judged on listening rather than on published figures.

Cables are made in the UK, and the company holds the Queen's Award for Enterprise, granted in 2018 and again in 2021. The upper ranges use the company's own tellurium copper connectors, the material Tellurium Q takes its name from.

The power cable range runs from the Blue and Black families, through the Silver ranges, to the Diamond and Statement cables at the top. Each step is intended to carry the same tonal character further rather than change it, so moving up the range sharpens what you already have rather than giving you a different sound.

4.95/5 from 20,708+ reviews Award Winning Dealer Since 2013 UK Specialist since 2005

Shop by Range

Tellurium Q run three families rather than one ladder, and each has its own character. Start by choosing the family that suits your system, then the level within it. Every family climbs through three steps: the base range, the Ultra version, then the Diamond version. The families interleave by performance rather than stacking, so a Silver sits above a Black but below a Blue Diamond. Statement sits above all nine.

92 of 92 products

  • Tellurium Q

    Tellurium Q Silver III USB Type A to Type B Cable

    SKU: SL-USB

    From
    £415.00
    Ex. VAT

    The Silver III USB boasts the silver family of sound quality and, as you would expect, is a step forward from the performance of both the Black and Blue USB.

    View Available Worldwide Shipping Available
  • Tellurium Q Ultra Silver II Speaker Cable
    NEW

    Tellurium Q

    Tellurium Q Ultra Silver II Speaker Cable Pair 2.5m - Factory Terminated - Ex Demo

    SKU: TQ Ultra Silver II Speaker ex demo

    £2,166.66 £2,788.33
    Ex. VAT ✓ Save £621.68

    Look no further than the Tellurium Q Ultra Silver II Speaker Cable if you seek an enhanced listening experience. As part of the Silver Family, it offers uncoloured sound with remarkable resolution, transparency, and tonal accuracy, providing a vivid and dynamic listening experience. What sets it apart is its exceptional level of detail, surpassing even the renowned Black range, making it perfect for those who appreciate nuanced sound, while its durability and stylish design ensure lasting performance and aesthetic appeal.

    View Available
  • Tellurium Q Silver Diamond Waveform hf RCA to RCA Digital Coaxial Cable 1m
    NEW
    £963.29 £1,205.00
    Ex. VAT ✓ Save £241.71
    Just when Tellurium thought the limits were reached - the Silver Diamond went further!
    View Available
  • Tellurium Q Black Diamond RCA Interconnect 1m Pair
    NEW

    Tellurium Q

    Tellurium Q Black Diamond RCA Interconnect 1m Pair - Special Offer - Black November Deal

    SKU: TQ Black Diamond RCA 1m Special Offer

    £901.62 £1,127.50
    Ex. VAT ✓ Save £225.88
    The Tellurium Q reference RCA for one very good reason - they are staggeringly good. Detailed and smooth.
    PLEASE NOTE: 1m usually ships next day.
    View Available Worldwide Shipping Available
  • Tellurium Q Black Diamond RCA Phono Turntable Interconnect 1m Pair
    NEW

    Tellurium Q

    Tellurium Q Black Diamond RCA Phono Turntable Interconnect 1m Pair - Special Offer - Black November Deal

    SKU: TQ Black Diamond Phono 1m Special Offer

    £867.46 £1,084.79
    Ex. VAT ✓ Save £217.33
    The Black Diamond RCA Phono turntable cable is the Tellurium Q reference level product for very good reason.
    PLEASE NOTE: 1m usually ships next day.
    View Available Worldwide Shipping Available
  • Tellurium Q Silver Diamond Waveform hf USB Type A to Type B Cable 1m
    NEW
    £781.62 £977.50
    Ex. VAT ✓ Save £195.88
    The Silver Diamond Waveform™ hf USB boasts the silver family of sound quality and, as you would expect, is a step forward from the performance of the Black and Ultra Silver USB.
    View Out of Stock Worldwide Shipping Available
  • Tellurium Q Ultra Blue II UK to IEC Mains Cable 1.5m
    NEW

    Tellurium Q

    Tellurium Q Ultra Blue II UK to IEC Mains Cable 1.5m - Special Offer - Black November Deal

    SKU: TQ Ultra Blue II 1.5m Special Offer

    £386.95 £484.00
    Inc. VAT ✓ Save £97.05

    Ultra Blue II looks pretty much exactly the same as the old Ultra Blue except for the “II” denoting the new generation cable. Plug in a burnt in Ultra Blue II after the old version and you will hear within seconds why we have upgraded this cable. The sound is fuller, more organic and better balanced in the whole range. The top end detail is still the same but everything else has risen to that performance level.

    View Available Free delivery
  • Tellurium Q Ultra Silver XLR Balanced Interconnect - 1m Ex Demo
    NEW

    Tellurium Q

    Tellurium Q Ultra Silver XLR Balanced Interconnect - 1m Ex Demo

    SKU: TQ Ultra Silver XLR Ex Demo 1m XLR to XLR

    £712.67 £890.83
    Ex. VAT ✓ Save £178.17
    The Tellurium Q Ultra Silver has taking the qualities of the Graphite interconnect and extending the detail and top end without any harshness.
    View Available Worldwide Shipping Available

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Tellurium Q treats each cable as a vital part of your hi-fi system, engineered to minimise phase distortion, a subtle but important factor in accurate sound reproduction. In our experience, this design approach gives music more clarity, detail, and a natural sense of timing, delivering an improvement you can hear from the first listen.

Yes. Both in our own testing and from feedback we’ve received from many customers, Tellurium Q speaker and interconnect cables tend to open up with extended use. After a period of running-in, the sound can become smoother, more cohesive, and more engaging, with instruments and vocals gaining extra refinement.

This depends on your system’s character and your personal preferences. The Blue Range adds warmth to brighter setups, the Black Range offers a natural, transparent sound that suits most systems, the Silver Range provides high detail and openness without sharpness, and the Statement Range delivers the ultimate in clarity, dynamics, and realism for reference-level performance.

Tellurium Q cables are built to last, but we recommend handling them with care to maintain performance. Avoid tight bends, excessive pulling, or exposing them to extreme heat or moisture. Always hold the connectors rather than the cable body when plugging or unplugging.

Tellurium Q speaker cables are highly regarded for their focus on timing, coherence, and natural presentation rather than emphasising specific frequencies.

Yes, they are directional and should be installed according to the markings on the cable jacket from your amp to your speakers.

They work well across many systems, but higher-level cables tend to shine most in revealing setups.

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