QED Reference AUDIO 40 Phono RCA Interconnect Cable


The revolutionary QED Reference AUDIO 40 Phono RCA Interconnect Cable celebrates QED’s 40 years at the forefront of British designed audio cables.

QED Lifetime Guarantee

“Build quality and feel are very reassuring – you’re immediately drawn to the smart looking ‘Analoc’ locking plugs.”
What Hi-Fi? Sound and Vision June 2014



QED Reference AUDIO 40 Phono RCA Interconnect Cable

QED Reference AUDIO 40 Phono RCA Interconnect Cable on offer is part of the new award winning QED Reference Audio 40 range, celebrating over 40 years of QED innovation.

QED Reference AUDIO 40 Phono RCAThe Audio 40 analogue cable range is an entirely new design concept from QED. The cordage is designed primarily for low capacitance as this has been identified by QED as a significant  factor which leads to a high fidelity experience, making for a tight sound and retaining the rhythm of the original piece. Add QED’s Complementary Conductor TechnologyTM for high frequency detail and Analoc TechnologyTM to maximise signal integrity and the result is what we feel to be the most innovative interconnect ever made by QED.

QED Reference AUDIO 40 Phono RCA Interconnect Cable will connect your CD player, DAC or tuner to your amplifier or receiver.

Complementary Conductor Technology

Complementary Conductor Technology

Complementary conductor geometry utilises two conductors of different diameters to carry the same audio signal, providing an alternative path for high frequency audio which might otherwise become time smeared in a single audio pathway.


Analoc™ Plug 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.

Ferrite Insulation Technology

Ferrite Insulation Technology

A special floating Zn/Mn Ferrite jacket is used within the Audio 40 cordage to absorb very high frequency noise components outside of the audible band that have an adverse effect on the micro-timing of the audio signal.


  • Silver Plated 99.999% Oxygen Free Copper(SPOFC) conductors with LDPE dielectric
  • Asymmetrical twisted pair geometry
  • OFC shield giving 100% electromagnetic screening
  • Zn/Mn ferrite Jacket
  • Gold plated QED ‘Analoc™’ RCA plugs
    Capacitance: 76pF/m
  • Inductance: 0.37uH/m
  • Loop resistance: 0.072 Ω/m
  • Dissipation Factor: 0.0059
  • QED Lifetime Guarantee

The cable on offer is a brand new LATEST VERSION GENUINE QED Reference Audio 40 interconnect cable supplied by an authorised QED retailer.

QED dealer

Additional information

Weight 750 g