QED Signature Audio 40 Interconnect

High end interconnect

RCA connectors

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The engineers at QED are confident that the Signature Audio 40 is the most innovative interconnect ever made. Everything about this cable has been designed to ensure that the signal transported through it remains as pure and neutral as possible. The connectors are excellent, and they alone significantly reduce resistance and capacitance. They have the Analoc Plug technology, which perfectly locks with the female RCA.  They are made of solid bronze and the high quality copper contacts are plated with rhodium. The central bearing is hollow in order to combat skin effect and eddy currents. The interconnect uses CC Technology, which utilises two silver-plated, high purity copper conductors (99.999%) of different diameters. They have been insulated with the best available materials, namely teflon and polyethylene. It also has a jacket made of 10% magnetic materials, which eliminates electromagnetic interference. All the conductors undergo cryogenic treatment at below 190°. 

And this top-shelf technology is reflected in the sound quality produced, which is detailed and precise, without a hint of harshness. The frequency response is wide and the dynamic range is impressive. It works wonders on Hi-Fi systems that lack punch and precision. Exceptional value for money. Highly recommended!


Connectors: RCA Analoc Plug

RCA body: Brass

RCA contact: Rhodium-plated copper

Conductor treatment: Cryogenic

Conductor insulation: PTFE

Jacket: Ferrite polyethylene (10%)

Conductors: Silver-plated 99.999% pure copper

Capacitance: 63 pF

Inductance: 0.37 uH/m

resistance: 0.072 ohms/m

Dissipation factor: 0.0011

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QED Signature Audio 40 Interconnect

QED Signature Audio 40 Interconnect

High end interconnect

RCA connectors

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