QED Genesis Silver Spiral

Audio Cable for connecting Acoustic Loudspeakers by the metre. Concentric Triple Spiral Geometry. Aircore Technology

Price per metre, the cable is supplied in one piece in the quantity purchased

Genesis Silver Spiral

QED's flagship loudspeaker cable. The award-winning Genesis Silver Spiral cable is the result of over 40 years of scientific research and development in loudspeaker cable

The exceptionally low resistance of Silver Spiral allows amplifiers to exert exceptional grip and control over the speakers they are driving, especially at low frequencies. This is not just another loudspeaker cable, it is a high-performance audio component.This cable represents the culmination of QED research and development over the last 40 years.

FEATURES

AIRCORE™ TECHNOLOGY

QED cables with a cross-sectional area greater than 2.5 mm2 use air core technology to overcome the skin effect by grouping several smaller separately insulated cores together to create a larger CSA. If these conductors are arranged around a hollow central polyethylene core, the self-inductance exhibited by the cable can be reduced to about half of that predicted by the calculation.
Unique triple concentric spiral geometry
Concentric shield technology: for interference immunity
9 bundles of 99.999% oxygen-free silver-plated copper conductors: provides exceptionally low resistance

CABLES COUNT

Genesis Silver Spiral loudspeaker cable is QED's flagship loudspeaker cable and benefits from a period of intensive research and development known as Genesis Report.

Genesis Silver Spiral is a loudspeaker cable with a large cross-sectional area that guarantees very low resistance. This means that the voltage drop across the cable when in use will be so small that it will have no audible effect on the frequency response of the loudspeakers, unlike cables with a much higher resistance. Furthermore, this has the effect of helping to maintain the amplifier's damping factor compared to that measured using cables with a smaller cross-sectional area and therefore higher resistance. The damping factor is a measure of the amplifier's ability to precisely control loudspeaker excursions, especially at their resonance frequency. If this cannot be done effectively, distortions can be introduced into the programme material. The Genesis loudspeaker cable allows the amplifier to accurately accelerate and decelerate the loudspeaker, reducing distortion. Therefore, low-frequency information in the programme material is accurately transmitted to the speakers and bass notes sound tight and punchy without any tendency to become ‘boomy’.
Having a large cross-sectional area and reduced resistance would normally result in a corresponding increase in circuit inductance (and thus in inductive reactance) due to the conductors being more widely spaced. Having a high self-inductance is usually undesirable in a loudspeaker cable as it can affect high-frequency performance and introduce a phase shift associated with those frequencies (at the same time decreasing the amplifier's ability to correct high-frequency distortion components appearing at the loudspeaker terminals).

Genesis Silver Spiral loudspeaker cable has a special tubular construction using a central air core that effectively reduces the inductance of the cable loop to that of a cable with half the cross-sectional area. This allows the cable to retain its advantage in handling transients without corresponding loss of precision and detail at high frequencies.

Genesis is able to effectively overcome the skin effect that occurs at high frequencies in cables with a large cross section. This is the effect that causes high frequencies to be transported more effectively to the outside of the conductor, thus effectively increasing the cable's impedance at those frequencies. By having many smaller conductors individually insulated to add up to a large cross-sectional area, more of the available conductor area is utilised at high frequencies. At the same time, each individual wire is silver-plated to ensure that the resistance on the surface of each conductor is as low as possible.
It is desirable to keep the capacitance of a loudspeaker cable as low as possible because a high-capacity cable can cause instability in some amplifiers, and the Genesis cable achieves this by using insulating materials with very low dielectric constants. Therefore, for any ordinary speaker cable with the same conductor spacing and cross-sectional area, you will find that Genesis Silver Spiral has a significantly lower capacitance per metre.