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.

48 of 92 products

  • Tellurium Q

    Tellurium Q Blue II Speaker Cable - Custom Length

    SKU: Blue II Custom

    (7 reviews)
    £20.00
    Ex. VAT

    Tellurium Q Blue II is the entry level speaker cable that was designed to be the companion to Tellurium Q Black II.

    Please Note: You need to enter a quantity of TWO for a pair

    This product is terminated by Future Shop's expertly trained engineers

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  • Tellurium Q

    Tellurium Q Blue Waveform II Digital Coaxial Cable

    SKU: TQ Blue Digi Coax

    (2 reviews)
    From
    £215.00
    Ex. VAT
    The entry level Blue Waveform II takes over from the original waveform with the same architectural approach to improving digital signals as the other Waveform II digital RCA cables.
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  • Tellurium Q

    Tellurium Q Ultra Blue II UK to IEC Mains Cable

    SKU: TQ Ultra Blue II Mains

    (2 reviews)
    From
    £403.33
    Ex. VAT

    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.

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  • Tellurium Q

    Tellurium Q Black II 5 Pin Din to 5 Pin Din Audio Interconnect

    SKU: TQ Black II DIN

    (2 reviews)
    From
    £398.33
    Ex. VAT

    The Black cables by Tellurium Q were a multi-award-winning range, but Tellurium decided that to overhaul the whole series. The result is the Black II range, an upgrade on those already exceptional cables, but delivered at the same price as the previous generation! This product is the new version of the Black 5 Pin Din to 5 Pin Din cable. It has been created specifically with Naim systems in mind, and has garnered rave reviews from proud Naim owners!

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  • Tellurium Q

    Tellurium Q Blue Diamond Speaker Cable - Factory Terminated

    SKU: TQ Blue Diamond Speaker

    (5 reviews)
    From
    £337.50
    Ex. VAT

    Tellurium Blue Diamond (formerly known as Green) is the companion cable to Tellurium Ultra Black and is probably more suitable for slightly bright systems as they have a very slight “mellowing” effect. This can be particularly beneficial with class D and T amplifiers.

    Tellurium Q Speaker Cables are also available in Bi-Wire configurations, Please contact us for more information.

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  • Tellurium Q

    Tellurium Q Ultra Black II Phono RCA-RCA Cable

    SKU: UltraBlack II Phono RCA

    (1 reviews)
    From
    £472.50
    Ex. VAT
    The Ultra Black II tone arm cable RCA to RCA, being from the DNA of the rest of the Ultra Black II family, exhibits the same outstanding performance that the reviews for this family of cables indicate. Additionally, each and every Ultra Black II phono cable is pre-conditioned using a special “jig” for two days to give you a head start on its performance, allowing you to get more from your system sooner.
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  • Tellurium Q

    Tellurium Q Black Diamond 5 Pin Din to 5 Pin Din

    SKU: TQ Black Diamond Din

    From
    £952.50
    Ex. VAT
    Tellurium were asked if it was possible to construct a reference level DIN cable, and this is the result.
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  • Tellurium Q

    Tellurium Q Black Diamond Digital Streaming Ethernet Cable

    SKU: TQ Black Diamond Ethernet

    From
    £831.25
    Ex. VAT
    New High performance Digital Streaming cable announced by Tellurium Q, bringing better detail and a more natural sound than you might expect.
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  • Tellurium Q

    Tellurium Q Blue Waveform II Digital Audio AES EBU Cable

    SKU: TQ Blue II AES/EBU

    From
    £216.21
    Ex. VAT
    This is the Tellurium Q "entry level" digital XLR cable but the performance is well beyond an entry level product.
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  • Tellurium Q

    Tellurium Q Silver Diamond RCA Interconnect Pair

    SKU: TQ Silver Diamond Audio

    From
    £2,117.50
    Ex. VAT

    The Silver Diamond RCA Interconnects were developed and designed after the Silver Diamond speaker cable to complement and reveal as much of that “world-leading” performance as possible.

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  • Tellurium Q

    Tellurium Q Silver Diamond Digital Audio AES EBU Cable

    SKU: TQ Silver Diamond AES/EBU

    From
    £1,241.67
    Ex. VAT
    The Silver Diamond XLR sits right at the top of all TQ's families of sound in terms of performance. Highly detailed, incredible range and above all natural. Once you hear a Silver Diamond XLR you will find it difficult to go back.
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  • Tellurium Q

    Tellurium Q Silver Diamond Speaker Cable - Factory Terminated

    SKU: TQ Silver Diamond Speaker

    From
    £1,512.50
    Ex. VAT

    The Silver Diamonds are the cables that Tellurium were not sure could be made (although they hoped that they would be possible).

    Tellurium Q Speaker Cables are also available in Bi-Wire configurations, Please contact us for more information.

    View 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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