QED Signature Audio 40 RCA cable with SPOFC, Teflon dielectric, Analoc plugs, low capacitance and cryogenic treatment for hi-fi systems. Read more.
The QED Signature Audio 40 RCA to RCA is a premium analogue interconnect designed for music lovers, hi-fi enthusiasts and demanding listeners who want a clean link between source and amplifier. Positioned as a serious cable within QED’s range, it focuses on low capacitance, carefully managed conductor geometry and dependable signal integrity. It is well suited to CD players, DACs, streamers, preamplifiers and integrated amplifiers, especially in systems where timing, rhythm and subtle musical information matter as much as tonal balance.
At the heart of the QED Signature Audio 40 is Complementary Conductor Technology™, where two conductors of different diameters carry the same audio signal. This gives high-frequency components of the signal an alternative path and can help the cable maintain a cleaner, more controlled transfer. The construction includes silver-plated 99.999% oxygen-free copper conductors, a Teflon™ dielectric, asymmetric twisted-pair geometry, SPOFC shielding for 100% electromagnetic screening and a Zn/Mn ferrite jacket. With capacitance specified at 63 pF/m, inductance at 0.37 uH/m and resistance at 0.072 Ω/m, the cable is clearly built around accurate analogue performance.
In everyday use, the QED Signature Audio 40 RCA to RCA is a strong upgrade choice between a source component and amplifier, or between a preamplifier and power amplifier in a revealing hi-fi system. The deep cryogenic treatment is intended to improve the microstructure of the conductor material, while QED’s Analoc™ locking RCA plugs use a low eddy-current design, high-purity copper conductors and rhodium plating for a firm, durable connection. Keep the connectors clean, avoid tight bends and pair the cable with components that can reveal improvements in detail and timing. Explore the QED Signature Audio 40 for a more carefully engineered analogue connection.
