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These 600mm long QED cables are in brand new condition and were traded against a cable upgrade.
The QED Signature Audio 40 is a premium analogue interconnect created to celebrate 40 years of cable innovation from QED. Designed for serious hi-fi systems, it’s aimed at listeners who have already made a significant investment in their audio equipment and want performance to match.
What Makes It Special?
🔹 Low Capacitance Design
QED focused on reducing capacitance — a key factor in maintaining timing accuracy and preserving musical rhythm. The result is a tight, controlled sound with strong fidelity to the original recording.
🔹 Complementary Conductor Technology™
Two conductors of different diameters carry the same signal. This creates an alternative pathway for high frequencies, helping to reduce time smearing and improve detail retrieval.
🔹 Analoc™ Technology
The custom-designed Analoc locking RCA plugs feature:
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High-purity copper signal pins
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Low eddy current design
Please note: Collection from our Murarrie showroom or freight at buyer's expense. We do not offer free shipping on traded equipment.
Contact The Audio Tailor today to arrange an audition.
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No bulky brass plug body
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Hard-wearing rhodium plating
This reduces magnetic interference effects that can subtly affect micro-timing.
🔹 Premium Materials & Construction
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Silver-plated 99.999% oxygen-free copper
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Asymmetric twisted pair configuration
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Teflon dielectric (low energy loss, reduced capacitance)
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Braided electromagnetic shielding
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Zn/Mn ferrite jacket
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Full cryogenic treatment (below −190°C) to relieve micro-structural stresses
The translucent sheathing and rhodium-plated connectors give it a distinctive, high-end aesthetic.
Please note: Collection from our Murarrie showroom or freight at buyer's expense. We do not offer free shipping on traded equipment.
Contact The Audio Tailor today to arrange an audition.
Generating expert take…
QED: British Audio Cable Pioneer
Quality Electronic Design was founded in 1973 by Bob Abraham and Ian Vine, establishing itself as a British specialist in audio and AV connectivity. The company emerged from a philosophy that cables deserve serious engineering attention—a radical notion at the time. QED's landmark 79 Strand cable, released in the mid-1970s, became widely recognized as the world's first specialist loudspeaker cable and fundamentally shifted industry perception by demonstrating that cable design could measurably impact audio performance.
QED's product portfolio centers on audio and audiovisual cables and connectivity solutions. The brand has built its reputation through rigorous engineering principles, extensive measurement protocols, and computer-aided design techniques applied across speaker cables, interconnects, and related components. This scientific approach has earned the company numerous industry awards and established it as the market leader in premium cable design.
Positioned in the high-end and mid-tier segments, QED commands respect among knowledgeable audiophiles and home cinema enthusiasts who prioritize technical rigor and proven performance. The brand occupies a unique space as both a heritage player with five decades of innovation and a contemporary technology leader. QED remains headquartered in the UK and maintains distribution internationally, appealing to buyers who view cables as legitimate audio components worthy of investment rather than commodity items.
See all QED listings on RADAR.
