Reference 40 – 1M RCA to RCA Lead | QED



The Audio 40 cable range is an entirely new design concept from QED labs.

The Reference Audio 40 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 QED’s Analoc TechnologyTM to maximise signal integrity and the result is what QED feels to be the most innovative interconnect ever made by QED.

QED Reference Audio 40 cable features:

  • Complementary Conductor TechnologyTM
  • Silver Plated 99.999% Oxygen Free Copper(SPOFC) conductors
  • LDPE dielectric
  • Asymmetrical twisted pair geometry
  • 24k Gold plated QED AnalocTM locking RCA plugs



QED - Hi-Fi And Home Cinema Cables

Founded by Bob Abraham and Ian Vine in 1973; QED has, over the past 40 years, acquired unparalleled knowledge and experience of hi-fi and home cinema cables and connectivity. We can also legitimately claim that, during this period, we have changed people’s perspectives about hi-fi cables. Consumers no longer believe that ‘bell wire will do’ or that ‘any old cable will be fine’. This understanding that cable quality is important and makes a real difference to your enjoyment began with the launch of the QED 79 strand speaker cable in 1978. QED’s reputation for both innovation and technical excellence is known throughout the world. The latest computer aided design techniques allow our research and development team to keep pace with technological advances and deliver products that achieve the highest levels of performance and reliability. This is why QED speaker cables and interconnects are recommended by so many of the world’s leading manufacturers of hi-fi and home theatre equipment, and also why so many of our products have won prestigious awards. For your convenience, and to better understand the different cable products we offer, we have divided them into four separate ranges: Profile, Performance, Reference and Supremus

Additional information

Price Bracket


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
Parallel Capacitance: 76 pF/m
Inductance: 0.37 uH/m
Loop resistance: 0.072 Ω/m
Dissipation Factor: 0.0059
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