QED Supremus Speaker Cables

Founded by Bob Abraham and Ian Vine in 1973; QED has, over the past 40 years, acquired unparalleled knowledge and experience of hi-fi and home cinema cables and connectivity.

We are the market leader but we’re certainly not complacent. Our design engineers constantly investigate new technologies and undertake scientific research to ensure we always offer our customers the very best products on the market. As far back as 1994 we conducted the most extensive ever scientific investigation into the effects of speaker cables on hi-fi system performance. The results were astonishing, and can be found on our website under the heading ‘The Genesis Report'. The report produced clear evidence that speaker cables do matter, and we continue to use this information today. We urge you to try QED cables for yourself. If you do you’ll discover the differences in sound quality that QED hi-fi cables can really make.



QED Supremus Speaker Cables

Click Here for the Supremus Product Brochure

The largest cross-sectional area of pure copper ever incorporated into a QED loudspeaker cable, enables QED Supremus cable to deliver the ultra-low resistance required to ensure perfect fidelity of the musical signal.

The Ultimate Expression Of Sound Born From Pure Science

AirCore™ Technology, unique to QED cables, means unrivaled high frequency detail, rhythm and timing. QED Supremus boasts sixteen silver plated, 99.99% oxygen free copper, solid core conductors. To deliver its no compromise sonic performance, each individual conductor is insulated by a nearly invisible layer of enamel, providing ultimate insulation for a more detailed output.

So what are the features which make Supremus speaker cables so special?


QED’s proprietary Aircore™ Technology keeps inductance and capacitance at vanishingly low levels. This changes the magnetic field within the speaker cable to ensure high frequencies travel through the central part of the conductor. The result is an unrivaled level of high frequency detail and cable timing.


A dedicated pure copper, Rhodium plated locking design to ensure maximum surface contact between the plug and terminals. Utilizing QED’s propriety Airloc™ technology for an oxygen free, cold weld connection made for life.


Boasting two bundles of 16 Silver plated, cryogenically treated oxygen free copper conductors for ultra-low resistance exerting beautiful control, bringing your amplifier and speaker electrically closer together.


The conductors are uniquely individually insulated by a nearly invisible layer of enamel. This material was chosen because it has extremely good insulating properties and sets new standards in the insulation hierarchy.

Amazing Reviews for QED Supremus Speaker Cables

Here are some comments from the experts in the industry:

"Undoubtedly audiophile class, this ambitious and physically impressive UK loudspeaker cable is one of very few to gain an Audio Excellence rating." Hi-Fi Critic Audio Excellence 2017

"Superbly constructed and intelligently engineered... They’ll bring the best out of your equipment" Hi-Fi World 2017 "its overall sense of balance most impressed... QED’s Supremus... One Cable to Rule Them All." Hi-Fi+ Awards 2017

QED Supremus high-end speaker cables give you the perfect opportunity to upgrade your existing sound system. If you are looking to buy a new pair of speakers, we recommend you to check our Concept 300 bookshelf speakers and Concept 500 floor standing speakers.

  • 2 x 16 solid core silver plated 99.99% oxygen free copper conductors
  • Vanishingly low resistance for better speaker and amplifier control
  • Enamel coated conductors for reduced capacitance and consistent energy flow
  • Rhodium plated Airloc™ locking plugs and Cryogenically treated speaker cables
  • QED Aircore™ Technology achieves unrivaled high frequency details and cable timing
  • Lifetime Warranty