QED - Reference Digital Audio 40 Interconnect – 3.0m - "NA"
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About this product
The QED Reference Digital Audio 40 sets a new benchmark in digital coaxial S/PDIF signal transfer. Its geometry has been precisely engineered to achieve optimal impedance for signal integrity, while the silver-plated conductors provide a low-resistance path for high-frequency signals. QED’s Digiloc2™ RCA plugs enhance the impedance match, reducing return loss by up to 1.5dB for cleaner audio output. With triple-layer electromagnetic shielding, this cable ensures minimal signal jitter and maximum protection from electromagnetic interference. A hollow central pin and a non-conductive, low eddy current plug body further improve high-frequency signal fidelity. Designed for audiophiles, the Reference Digital Audio 40 is built to deliver clearly audible sonic improvements and a richer listening experience. It comes with a lifetime guarantee and features top-tier materials like 99.999% OFC copper and low permittivity foamed polyethylene dielectric. Ideal for connecting digital audio sources like CD or Blu-ray players to high-end audio systems, this cable exemplifies cutting-edge performance and durability.
Cable Length
9.84'Features:
Silver plated 99.999% OFC central conductor
Triple-layer electromagnetic shielding
75 Ohm impedance matched Digiloc2™ RCA plugs
Low jitter signal transfer with improved timing
Lifetime guarantee on all cables
Lifetime guarantee on all cables
- Cable Length9.84 feetConnector Type (End 1)Bare wireConnector Type (End 2)Bare wire
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The QED Reference Digital Audio 40 sets a new benchmark in digital coaxial S/PDIF signal transfer. Its geometry has been precisely engineered to achieve optimal impedance for signal integrity, while the silver-plated conductors provide a low-resistance path for high-frequency signals. QED’s Digiloc2™ RCA plugs enhance the impedance match, reducing return loss by up to 1.5dB for cleaner audio output. With triple-layer electromagnetic shielding, this cable ensures minimal signal jitter and maximum protection from electromagnetic interference. A hollow central pin and a non-conductive, low eddy current plug body further improve high-frequency signal fidelity. Designed for audiophiles, the Reference Digital Audio 40 is built to deliver clearly audible sonic improvements and a richer listening experience. It comes with a lifetime guarantee and features top-tier materials like 99.999% OFC copper and low permittivity foamed polyethylene dielectric. Ideal for connecting digital audio sources like CD or Blu-ray players to high-end audio systems, this cable exemplifies cutting-edge performance and durability.
Performance Audio 40i builds on the success of its predecessor, offering an even more refined and immersive listening experience. Leveraging insights from the QED Genesis Report and utilizing innovative Solid Complementary Conductors, the cable effectively separates audio signals for reduced interference and increased clarity. Engineered with a combination of oxygen-free and silver-plated copper conductors of varying diameters, this interconnect delivers greater scale and dimensionality. Complemented by a ferrite jacket and foamed polyethylene dielectric, it ensures optimal signal fidelity. Praised by industry reviewers for its transparency, dynamic response, and excellent value, the Audio 40i is an award-winning solution for audiophiles who demand high performance from their hi-fi systems.
The QED Reference Audio 40 represents a significant advancement in analogue interconnect technology, building on the success of the original Analoc™ design. The new Analoc2™ plug design eliminates all conductive material from the plug bodies to ensure minimal signal distortion and superior audio fidelity. With over 45 years of cable design expertise, QED has engineered this cable using advanced geometry and materials including Silver Plated 99.999% Oxygen Free Copper (SPOFC) conductors, high rigidity thermoplastics, and a Zn/Mn Ferrite jacket for high-frequency noise absorption. The result is a refined, dynamic, and transparent sonic performance. Multiple industry awards affirm its exceptional sound quality, making it an outstanding choice for serious audio enthusiasts.
Specs
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