Building on the acclaim and success enjoyed by QED’s award-winning XT25 speaker cable, XT25 Bi-Wire is designed to bring the unparalleled performance of QED’s X-Tube cable technology and X Quad geometry to an affordable biwire or bi-amp speaker cable. Specified and manufactured without compromise, XT25 Bi-Wire demonstrates QED’s mastery of speaker cable technology at the same time as representing unrivalled value for money.
An absolute commitment to engineering integrity, and a complete understanding of the needs and expectations of consumers, has led QED to deliver the highest performance ever achieved in a bi-wire speaker cable of this price. Thanks to painstaking attention to detail and an unswerving determination to bring the company’s classleading cable technology to as wide an audience as possible, QED has redefined what is possible from a cost-effective speaker cable.
65385
Brand-new, unused, unopened and undamaged item in original retail packaging (where applicable).
New
Limited life time warranty. More info
Limited life time warranty on all cables except active HDMI - 2 years & professional install - 5 years. Please see manufacturers website for full details.
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Building on the acclaim and success enjoyed by QED’s award-winning XT25 speaker cable, XT25 Bi-Wire is designed to bring the unparalleled performance of QED’s X-Tube cable technology and X Quad geometry to an affordable biwire or bi-amp speaker cable. Specified and manufactured without compromise, XT25 Bi-Wire demonstrates QED’s mastery of speaker cable technology at the same time as representing unrivalled value for money.
An absolute commitment to engineering integrity, and a complete understanding of the needs and expectations of consumers, has led QED to deliver the highest performance ever achieved in a bi-wire speaker cable of this price. Thanks to painstaking attention to detail and an unswerving determination to bring the company’s classleading cable technology to as wide an audience as possible, QED has redefined what is possible from a cost-effective speaker cable.
Very Low DC Resistance
Conductor Area of 5.0 mm2
Air Gap Dielectric Properties
X-Tube Technology
It is not generally appreciated that electrical signals, moving at or near the speed of light in a circuit, do so via the medium of electromagnetic (EM) waveforms, which exist not only within the copper conductors themselves but also within the dielectric which insulates one from another. The movement of electrons around the circuit merely facilitates generation of the EM waveform, as their drift velocity, measuring only a few centimetres per second, is much slower than the speed of light.
As frequency increases, electrons flow more and more towards the periphery of a conductor so that if the frequency is high enough only a very thin layer (or skin) on the outside of the conductor is used. This skin depth varies for different materials at a fixed frequency and in copper it means that if a conductor has larger than 0.66 mm 2 cross-sectional area, not all of that area is available for an analogue music signal to use.
Cable inductance is a prime cause of high-frequency attenuation and phase shift in loudspeaker cables. High inductance causes cable impedance to rise with frequency, reducing output in the very upper frequency range, sometimes preceded by response peaking.
| Outside Diameter | 13.1 mm |
|---|---|
| Conductor Chemistry | 5.0 mm2 |
| Dielectric Properties | Air Gap |
| Loop Resistance | 7.0 mΩ/m |
| Parallel Capacitance | 69 pF/m |
| Dissipation Factor @ 10 kHz | 0.0001 |
| Self-Inductance | 0.36 μH/m |
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