XT5 utilises the proven and acclaimed X-Tube technology of QED’s award-winning loudspeaker cable ranges, and applies it to the specific requirements of a mains power cable.
QED XT5 Mains Power Cable - UK Plug
Having played a large part in the creation of the very first specialist speaker cables and with over 47 years of unrivalled engineering excellence and expertise in the fields of hi-fi, home cinema cables and connectivity, no other company has demonstrated such relentless dedication to research and development combined with analytical listening tests.
QED knows full well the standard of the mains power that drives hi-fi equipment can have a profound effect on its performance. So, having achieved great and Award-winning results with its most recent speaker cables and analogue interconnects, QED’s engineers have now applied their unique methodology to power cables.
This single-minded determination to liberate the performance of hi-fi electronics of all kinds has resulted in XT5 - a mains cable that spotlights QED’s mastery of cable technology and sets entirely new standards of performance at the price.
- X-Tube Technology
- Ferrite Insulation
- Complete Impedance Stability
- Radio Frequency Noise & Interference Elimination
- New Performance Benchmark
As with any QED cable, an enormous amount of attention has been paid to the materials and geometry of XT5. In a drive to minimise the degrading ‘proximity effect’ created as current density accumulates in the conductors nearest to each other, QED has applied the lauded X-Tube technology first developed for its award-winning range of loudspeaker cables. By more effectively regulating current flow to audio equipment, the equipment is free to perform as its designers intended.
The XT5 also features a ferrite-impregnated jacket – designed to shield the X-Tube conductor cores from mains derived radio frequency noise. As a result, high-frequency noise signals than can adversely affect the performance of audio electronics are effectively eliminated.
This kind of imaginative thinking and rigorous execution is typical of QED, and it means the XT5’s X-Tube configuration is way beyond what any nominal competitor can offer.
QED XT5 Power Cables is the beginning of a range of high-performance power products, which QED will be adding to over the coming months and years.
Large Cross-Sectional Area
The 4mm2 cross sectional area means XT40 exhibits very low resistance, allowing amplifiers to exert outstanding control over the speakers they are driving. In addition, its large cross sectional area makes it suitable for long cable runs.
At low frequencies both X-Tube™ and conventional stranded/solid core speaker cables convey signals in a linear way. However, at high frequencies, X-TubeTM retains a near-linear signal transfer, whereas the conventional cables fail to conduct uniformly across the entire conductor area.
In standard speaker cables at high frequencies current flow is highest at the periphery with rapidly deteriorating current density towards the centre of the conductor.
The effect of this is to reduce the actual cross sectional area of the cable at 15kHz to less than 75% of that at low frequencies. This results in higher distortion and compromises the performance of the cable.
X-TubeTM with polycore technology exhibits much lower self-inductance and is therefore less affected by this problem. The polycore technology reduces loop inductance to levels only achievable using more costly and difficult to terminate cables.
The result is more high frequency detail, less distortion and greater performance.