QED

The Sound of Science since 1973

Explore QED audio cables and accessories for outstanding sound quality. From HDMI to speaker cables, find options tailored for your Hi-Fi or home theater system.

QED SignatureAudio 40 Cable - 60cm

QED SignatureAudio 40 Cable - 1.0 metre

QED SignatureAudio 40 Cable - 3.0 metres

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QED Signature Audio 40 Cable
€ 269,00 per set
in stock
shipping within 2 business days
sku:
QE2440
ean:
5036694037348
€ 329,00 per set
in stock
shipping within 2 business days
sku:
QE2445
ean:
5036694037355
€ 439,00 per set
in stock
shipping within 2 business days
sku:
QE2448
ean:
5036694037362
make your choice:

The QED Signature Audio 40 analogue audio interconnect celebrates QED's 40 years of innovation in British audio cable design. Engineered for high-fidelity sound, this groundbreaking cable combines low capacitance with advanced technologies to deliver a clear, rhythmically accurate listening experience.

Key Features

  • Complementary Conductor Technology™
  • Teflon dielectric
  • Cryogenic treatment
  • Analoc2™ connector design
  • QED Lifetime Guarantee

Detailed Description

Complementary Conductor Technology™

The QED Signature Audio 40 incorporates Complementary Conductor Technology™, which uses two conductors of varying diameters to transmit the same audio signal. This innovative approach provides an alternative path for high-frequency components, significantly reducing time smear and ensuring precise and detailed sound reproduction.

Teflon Dielectric

Utilizing a Teflon dielectric with its low dielectric constant, this cable minimizes signal energy loss caused by capacitance. This technology ensures that more of the original audio signal is retained, enhancing clarity and overall audio fidelity.

Cryogenic Treatment

Undergoing deep cryogenic treatment below -190°C (-310°F), the cable's material structure is refined to remove microstructural flaws. This process improves tonal quality and extends the cable's lifespan, making it a reliable choice for high-performance audio systems.

Analoc2™ Connector Design

QED's redesigned Analoc2™ connectors feature high-purity copper signal and ground connections, supported by a low-mass thermoplastic structure. This design eliminates the detrimental effects of eddy currents and resonant distortions while retaining rhodium-plated, hollow signal pins to counteract the skin effect. The improved locking mechanism enhances signal integrity and noise rejection.

Technical Specifications

Conductors Silver Plated 99.999% Oxygen Free Copper (SPOFC)
Dielectric Teflon
Geometry Asymmetrical twisted pair
Shielding SPOFC shield with 100% electromagnetic screening
Jacket Zn/Mn ferrite
Plugs Rhodium plated QED Analoc2™ RCA
Treatment Cryogenically Treated
Capacitance 63 pF/m
Inductance 0.37 μH/m
Loop resistance 0.072 Ω/m
Dissipation Factor 0.0011
Warranty QED Lifetime Guarantee
€ 269,00 per set
in stock
shipping within 2 business days
sku:
QE2440
ean:
5036694037348
€ 329,00 per set
in stock
shipping within 2 business days
sku:
QE2445
ean:
5036694037355
€ 439,00 per set
in stock
shipping within 2 business days
sku:
QE2448
ean:
5036694037362
make your choice: