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QED Signature 40 Stereo audio cable | (2x Phono RCA male - male)


Signature Audio 40 stereo phono RCA cable ensures a reliable connection in the absolute best quality for hi-fi sound experience.

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• Complementary Conductor Technology™: Uses two conductors of different diameters for better sound quality.
• Teflon dielectric: Reduces loss of audio signal energy.
• Cryogenic treatment: Improves cable structure and sound quality.
• Analoc2™ connector design: High purity and minimization of current disturbances.
• Silver-coated conductors: Ensures less resistance and better sound reproduction.
• 100% electromagnetic shielding: Protects against signal interference.
• Rhodium-plated RCA connectors: Improves connection and sound quality.

Signature Audio 40:

This advanced audio cable is designed with the latest technology to ensure an exceptional audio experience. With QED Signature's unique Complementary Conductor Technology, which uses two conductors with different diameters, a more nuanced sound reproduction is achieved, where high-frequency sound components are conducted more efficiently. Teflon dielectric is used to minimize the loss of audio signal energy, resulting in clearer and more defined sound.

Cryogenic treatment :

Cryogenic treatment of the cable improves the microstructure of the material, which in turn increases the quality and lifespan of the product. QED's extensive listening tests have shown that the cable with cryogenic treatment is preferred over untreated cables.

Analoc2 connector design :

Renewed with low mass, high purity copper connections, and now uses a high stiffness thermoplastic material in both the internal support structure and cable trunk relief to eliminate the harmful effects of eddy currents. The hollow, rhodium-plated, high-purity copper signal pins retain their design, while the efficiency of the slip ring, which locks the similarly plated, pure copper earth terminal in place, has also been improved.
This cable is not just an improvement in sound quality, it also represents an innovation in audio cable design


• Silver-plated 99.999% oxygen-free copper conductors (SPOFC) with Teflon™ dielectric
• Asymmetrical twisted pair geometry
• SPOFC screen that provides 100% electromagnetic shielding
• Zn/Mn ferrite jacket
• Rhodium plated QED Analoc2 RCA connectors
• Capacitance: 63 pF/m
• Inductance: 0.37 µH/m
• Loop resistance: 0.072 O/m
• Dispersion factor: 0.0011
QED Signature 40 Stereo audio cable | 0,6 meter QE-SI2440: QED Signature 40 Stereo audio cable | 0,6 meter
248,14 EUR 
QED Signature 40 Stereo audio cable | 1 meter QE-SI2445: QED Signature 40 Stereo audio cable | 1 meter
295,11 EUR 
QED Signature 40 Stereo audio cable | 3 meter QE-SI2448: QED Signature 40 Stereo audio cable | 3 meter
389,05 EUR 

Brand description - QED

QEDQED is a British specialist in audio cables that has been designing and developing superior AV cables for nearly five decades. Since the launch of their groundbreaking QED 79-strand cable in 1976, which was the world's first "specialist" speaker cable, QED has been a pioneer in cable technology. This product clearly demonstrated how cables can have a noticeable impact on sound quality. Since then, the company has utilized extensive scientific research and computer-aided design to ensure that their products remain cutting-edge.

This rich heritage and constant pursuit of innovation are at the heart of QED's latest products. All cables deliver superior performance, without compromising their competitive price points. QED offers a wide range of high-quality products, from entry-level to high-end cables.

Manuals and user guides for QED products

Unfortunately, as manufacturers do not make manuals or guides in all languages, we cannot guarantee that a local language manual is included for the item.
- If you are unsure about a manual available in the desired language, just contact us and we will do what we can to help.

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