Description
The groundbreaking Signature Audio 40 analog audio interconnect celebrates QED's 40 years at the forefront of British designed audio cables
Signature Audio 40 is an entirely new design concept from QED laboratories. The cordage is designed primarily for low capacitance as this has been identified by QED as a significant factor leading to a high fidelity experience and makes for a tight sound retaining the rhythm of the original piece. Add our Complementary Conductor TechnologyTM for high frequency detail and our Analoc TechnologyTM to maximize signal integrity and the result is what we feel to be the most innovative interconnect ever made by QED. Please see our 'cables matter' section below for more in-depth information on this ground breaking design.
FEATURES AND BENEFITS
Complementary Conductor TechnologyTM
This innovation utilizes two conductors of different diameters to carry the same audio signal. This has the effect of providing an alternative path for high frequency audio components which might otherwise become time smeared in a single audio pathway.
TEFLON DIELECTRIC
This material with its low dielectric constant has been used to cut down on the amount of audio signal energy lost due to cable capacitance.
Cryogenic treatment
It is understood that cryogenic treatment results in the elimination of dislocations and fractures in the material's micro-structure. Trumpets and other brass instruments have been found to produce a better tone after Deep Cryogenic Treatment (below -190 °C, -310 °F) and it also extends their working life. Our extensive listening tests have shown that the cryogenically treated cable is preferred over the same cable without the treatment.
ANALOCTM Locking RCA Plugs
The new QED Analoc™ plug is a low eddy current design featuring small high purity copper
conductors in place of the usual large volume brass body found in ordinary high quality plugs. This cuts down or eliminates the tendency for the changing magnetic field in the conductor to induce eddy currents which can affect the micro timing of the audio signal. Rhodium plating has the advantage for use as a plating material due to its superior hardness.
OVERALL PERFORMANCE
Analoc™ Technology
QED ‘Analoc™ RCA plug which features high purity copper signal and ground connections in an insulated low eddy current brass body. The hollow central pin eliminates skin effect in the signal connection and the locking barrel design clamps the dual tombstone ground connection firmly to the RCA sockets
Complementary Conductor Technology
Complementary conductor geometry utilizes two conductors of different diameters to carry the same audio signal. This has the effect of providing an alternative path for high frequency audio components which might otherwise become time smeared in a single audio pathway.
SPECIFICATIONS
Silver Plated 99.999% Oxygen Free Copper(SPOFC) conductors with Teflon™ dielectric
Asymmetrical twisted pair geometry
SPOFC shield giving 100% electromagnetic screening
Zn/Mn ferrite Jacket
Rhodium plated QED 'Analoc™' RCA plugs
Cryogenically Treated
Capacitance: 63 pF/m
Inductance: 0.37 μH/m
Loop resistance: 0.072 Ω/m
Dissipation Factor: 0.0011
QED Lifetime Guarantee
Reference and Signature Audio 40 analogue cables use 'Analoc™' plugs with a built-in locking feature so that as the barrel is screwed up tight, the clamping force is increased making for a super noise free and secure connection.
To correctly fit 'Analoc™' plugs, the outer locking cylinder of the plug must be screwed forward, to loosen the gripping 'blades', whilst the plug is pushed into place on the socket. The locking cylinder should then be screwed back in order to lock the plug onto the socket. Needless to say, users must always remember to do this when connecting/disconnecting the cables.
To correctly fit 'Analoc™' plugs, the outer locking cylinder of the plug must be screwed forward, to loosen the gripping 'blades', whilst the plug is pushed into place on the socket. The locking cylinder should then be screwed back in order to lock the plug onto the socket. Needless to say, users must always remember to do this when connecting/disconnecting the cables.
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