Digital Audio 40 product image  Digital Audio 40 sub product image

REFERENCE
Digital Audio 40

£109.96
IN STOCK
0.6m
1m
3m
OVERVIEW

Reference Digital Audio 40

Reference Digital Audio 40, the new standard for digital coaxial S/PDIF signals.

Reference Digital Audio 40 utilises a carefully engineered geometry to achieve the precise characteristic impedance required for the maximum transfer of S/PDIF signals. Silver plated conductors deliver a low resistance path for high frequencies and QED Digiloc2™ plugs more closely match the cable's characteristic impedance, reducing return loss by up to 1.5dB when compared to conventional RCA plugs. This ensures optimal signal transfer and improved micro-timing of the audio signal

FEATURES

FEATURES AND BENEFITS

Just Listen

Silver plated signal carriers, effective high-quality shielding and impedance matched cordage and plugs all combine to create audible sonic improvements when compared to the competition


Triple Layer Electromagnetic Shielding

By implementing factory-controlled geometry and low permittivity foamed polyethylene dielectrics, Reference Digital Audio 40 maintains the correct characteristic impedance to match the transmission line between digital source and sink precisely. This makes for a very low jitter signal transfer which, listening tests have shown, leads to clearly audible sonic improvements.

75 Ohm Impedance matched Digiloc2TM RCA plugs

Feature high-purity copper signal and ground connections supported by a new non-conductive low eddy current body. The hollow central pin eliminates the skin effect at high frequencies and the revised locking barrel design clamps the dual blade ground connection firmly to the RCA sockets for improved noise rejection. The optimised geometry of the plugs and the dielectric materials selected have resulted in a closer impedance match for low jitter S/PDIF transmission, resulting in a measurable 1.5 dB reduction in insertion loss, compared to ordinary RCA plugs

The all new Digiloc2™ design cleverly substitutes high rigidity thermoplastic material for both the inner support structure and the cable strain relief to eliminate the distorting effects of eddy currents, which are always present in ordinary plugs where bulk brass is used instead.

Triple Layer Electromagnetic Shielding

A dual layer closely woven 99.999% OFC shield braid and aluminium mylar wrap with 100% coverage comprise a triple layer electromagnetic shield coaxially spaced around the central signal carrier within a foamed polyethylene dielectric. This ensures that interference signals induced by nearby high current noise sources do not contribute to higher signal jitter than would otherwise be the case. By the same token the shielding prevents unwanted voltage induced interference escaping the cable which might affect nearby analogue signal carriers.


Specifications

Silver Plated 99.999% Oxygen Free Copper central conductor

Extruded foamed Polyethylene (PE) dielectric - for sonic purity and low return loss

Double 99.999% OFC braid plus Al/Mylar wrap for 100% electromagnetic screening coverage

Twin leaf 24c Gold plated QED Digiloc2™ RCA plugs featuring high purity copper contacts, pin and low eddy current design

75 ohm coaxial design with closely matched locking plug for reduced return loss


This QED cable comes with a two year warranty


PERFORMANCE

OVERALL PERFORMANCE

Ultra Low Jitter

Ultra Low Jitter

Jitter is the undesired deviation from true periodicity of an assumed periodic signal in electronics and telecommunications, often in relation to a reference clock source. A cable displaying ultra low jitter has been measured at
typically 30ps.

Digiloc

Digiloc2™ Technology

QED Digiloc2™ RCA plugs feature high-purity copper signal and ground connections supported by a new non-conductive low eddy current body. The hollow central pin eliminates the skin effect at high frequencies and the revised locking barrel design clamps the dual blade ground connection firmly to the RCA sockets for improved noise rejection. The optimised geometry of the plugs and the dielectric materials selected have resulted in a closer impedance match for low jitter S/PDIF transmission, resulting in a measurable 1.5 dB reduction in insertion loss. The all new Digiloc2™ design cleverly substitutes high rigidity thermoplastic material for both the inner support structure and the cable strain relief to eliminate the distorting effects of eddy currents, which are always present in ordinary plugs where bulk brass is used instead.

USE IT FOR..

WHAT THIS CABLE IS USED FOR

CONNECT YOUR:

Blu-ray Player
CD Player

TO YOUR:

AV Amplifier
DAC
Digital Pre-Amp
REVIEWS

Customer Reviews

Best of 3 tested
After buying cambrige cxa and cxc dac and monitor audio br6 floorstanders . QED cables biwired .. i plugged my new chord digital coaxial single lead in and was instantly underwhelmed i checked id put all cables facing their apointed directional indicators .hmmm bland !?# i was expecting blown away at least . Ok payday and a qed reference digital audio 40 later i was beginning to believe my ears werent what they once were.i plugged the cable in and WOW its as if id had the speakers running on the speaker A button . I would whole heartedly recommend the qed reference 40 i play music every day now
Review By: Scoper uk

You're reviewing: Reference Digital Audio 40

SKUS: QE3212, QE3214, QE3210
LIFETIME GUARANTEE
LIFETIME GUARANTEE
ON ALL CABLES
FREE SAME DAYSHIPPING
FREE SAME DAY
SHIPPING
(on orders over £15)
HASSLE FREE >RETURNS
HASSLE FREE
RETURNS
HAVE A QUESTION
HAVE A QUESTION?
ASK US
DEALER LOCATOR

Why cables matter

Learn how our cutting edge technology can improve your audio experience

LEARN MORE
"This kind of transparency is difficult for rivals to match"
"Near total transparency that is the mark of an award-winner."
"Natural, organic way of making music that’s wonderfully smooth"
"Cannot be faulted for build, technical parameters, sound or value"
"Very low power loss, across the audioband it’s the perfect solution for high-end systems"
"Outstanding, among the best"