QED Supremus aims to be the ultimate speaker cable

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You can’t make a hi-fi separates system without them, and if you have a high-end system, then you need high-end cables…

That’s where QED hopes its new Supremus cable will come into play, a speaker cable that’s crammed full of technology in an effort to set a new benchmark when it comes to doing the audio donkey work.

The cable has a ceramic enamel coating, a departure from more typical casing in an effort to get better insulation, uses QED's ‘Aircore’ technology, and aims to deliver class-leadingly low impedance while reducing capacitance.

The QED Supremus cables are cryogenically frozen - yes, really - to a rather nippy -142 degrees, which claims to deliver performance benefits while also improving the longevity of the cable. This technique is said to be borrowed from the music industry, where a high-end cymbal might get similar treatment to both change the tonal balance and make it last longer.

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Also helping justify the price will be a new Rhodium-plated plug, which will come with a locking mechanism to ensure a secure connection.

The QED Supremus speaker cable is likely to cost around £1000 for a 3-metre pair of terminated cables, and will go on sale around September.

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Joe Cox
Joe Cox
Content Director

Joe is the Content Director for What Hi-Fi? and Future’s Product Testing, having previously been the Global Editor-in-Chief of What Hi-Fi?. He has worked on What Hi-Fi? across the print magazine and website for almost 20 years, writing news, reviews and features on everything from turntables to TVs, headphones to hi-fi separates. He has covered product launch events across the world, from Apple to Technics, Sony and Samsung; reported from CES, the Bristol Show, and Munich High End for many years; and written for sites such as the BBC, Stuff, and the Guardian. In his spare time, he enjoys expanding his vinyl collection and cycling (not at the same time).