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QED XT5
A high-quality power cable manufactured by British QED.
The XT5 utilizes QED's award-winning speaker cable technology, X-Tube, which has been proven effective and highly regarded, and applies it to the specific requirements of a mains power cable.
Based on research and world-class engineering, QED has created a groundbreaking power cable that ensures a clean and stable power supply to audio equipment, allowing it to unleash its full potential. As a significant player in the creation of the first specialized speaker cables, and with over 47 years of expertise, no other company has demonstrated such a long dedication to signal transmission.
QED is well aware that the mains power supplied to hi-fi equipment can deeply affect its performance. As with any QED cable, millimeter-perfect attention has been paid to the materials and geometry of the XT5. QED has aimed to minimize the 'proximity effect' which degrades signal transmission, where current density concentrates in conductors closest to the outer edge. QED has applied its esteemed X-Tube technology, originally developed for its award-winning range of speaker cables. The ferrite jacket, in turn, effectively counteracts potential interference from entering or leaving the cable. The XT5 is measurably superior to traditional cables supplied with equipment in many ways, and the difference becomes audibly clear with a good system. Tests have shown that even the hum of a hi-fi power supply can be reduced, which can have various effects on the device's performance as vibration and noise levels decrease.
It can therefore be stated that the XT power cable is an extremely affordable improvement for any hi-fi device or even an active subwoofer that uses a traditional detachable power cable.
X-Tube Technology
The braided individual cores of the live and neutral conductors are made small enough to resist eddy currents from adjacent cores, and thus do not contribute to the 'proximity effect'. The carefully calculated helix of the individual strands ensures that no two conductors run parallel for more than a few millimeters, which promotes even current flow at all frequencies. Separate bundles are insulated using K130 PVC material (to stabilize current capacitance and exceed international safety standards), and cable inductance is controlled by providing the assembly with a hollow LDPE core.
Ferrite Insulation
To combat interference from household electrical networks, especially radio frequency noise emitted by computer equipment, the XT5 uses a ferrite-impregnated inner jacket, wrapping the X-Tube cores in impenetrable radio silence. Attenuating high-frequency noise signals in this manner has already proven highly successful in QED's award-winning Audio 40 series of analog and digital cables.
Practicality
The XT5 is designed to be as thin and flexible as possible, and thus practical. Only the live and neutral cores have been given the X-Tube treatment described above. The earth core (required only in fault conditions) has been left to a conventional implementation. And because the X-Tube geometry allows the overall cross-sectional area of the cable to be kept more compact at 1.5 square millimeters, the XT5 is very flexible and reasonably thin despite its audiophile quality.
Listen
The XT5's numerous technological details help it perform brilliantly, and we are convinced that it represents amazing value for money. The easiest way to understand what we mean is to hear it in action for yourself – we are confident that you will find it superior to alternative power cables in this price range.
Specifications:
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Conductor Type: X-Tube
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Metallurgy: 99.999% Oxygen-Free Copper
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Cross-sectional area: 1.5 mm2
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Ferrite jacket: 10% Zn / Mn
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Capacitance: 100 pF / m
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Inductance: 0.7 μH / m
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Loop resistance: 0.026 ohm / m
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Dielectric strength: 2 kV (AC 15 minutes)
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Meets requirements: EN50525; EN60320; EN60884
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Outer sheath: Black pearlescent finish
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Nominal outer diameter: 11mm
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Wall plug: EU - Martin Kaiser Schuko 516
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Appliance connector: Martin Kaiser IEC C13 794