QED Award Winning Cables


QED

Reference

XT25 BI-WIRE

Speaker Cable

Airloc ABS

Terminated


2 to 4 Plugs

Single 6m




image host




QED XT25 Bi-Wire was designed as the natural complement to XT25, the 5-star-award winning*, entry-level X-Tube™ cable from QED. It incorporates four separate conductor bundles into a single, convenient X-Quad™ type geometry and is intended to present a much more enjoyable rendition of the musical performance when used in a bi-wire or bi-amped configuration.


QED XT25 speaker cable was designed from the top down and its musical performance derived from QED's flagship Supremus cable in a more affordable package. QED has won more What Hi-fi? awards than any other single brand and with its XT25, this heritage is delivered at a sensible price.

In common with all QED cables, XT25 Bi-Wire’s design was informed by the lessons learned during their exhaustive research into loudspeaker cable design, which began in 1995 and is detailed in the recently updated Genesis Report. This report sets out the design principles to which QED has adhered ever since and which resulted in the development of QED Supremus speaker cable – the ultimate expression of sound through science without compromise.

Each QED cable in the range is based on this unique concept and although their designs may be variously influenced by price, size or ease of use, each retains the basic original features of the flagship model. This gives even the base-model QED cables a sonic advantage over their similarly priced competitors. XT25 Bi-Wire, for example, is essentially a scaled down version of the top-of-the-range Genesis Bi-Wire cable sharing many of its geometrical features but having a smaller cross-sectional area and using 99.999% oxygen-free copper conductors in place of the more expensive silver-plated variety.


image host


Very Low DC Resistance


At QED, they recognise that low DC resistance of the loudspeaker cable is of paramount importance for high fidelity signal transfer. This is because the speaker presents a frequency dependent load to the amplifier of which the cable forms a variable proportion. If resistance is allowed to be too large, then audible changes to the frequency response characteristics of the loudspeaker will be introduced which cannot be corrected by the amplifier’s negative feedback loop.


image host


Very Low Inductance


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.


image host


Low-Loss Dielectric


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.


image host


X-Tube™ Technology


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.


99.999% Oxygen-Free Copper


QED XT25 Bi-Wire has a large current carrying capacity as it’s made up of 99.999% oxygen-free copper. As a result, its electrical resistance is low and quality of sound heard remains true to the original.


image host image host

Termination

Brand new AIRLOC Forte ABS banana plugs with improved pin section are fitted, designed to maximise contact area throughout the wide tolerance range found in 4mm amplifier and speaker sockets. This means that the connection remains uniformly tight and with its premium gold-plating, provides optimum sonic performance through time.

AIRLOC ABS Spade terminal connectors can also be fitted - please ask when ordering.

The cable configuration is 2 to 4 plugs, that is one pair of plugs fitted at the amplifier end and 4 plugs fitted at the speaker end of the cable. This will allow you to connect your amplifier with one pair of speaker output sockets per channel to one speaker fitted with 4 sockets.

Upgrading your speaker cable to bi-wire is not only a sound investment, but offers a marked improvement in performance and sound quality. If you do decide to bi-amp, then the speaker cable terminations at the amplifier end can simply be changed from 2 to 4 plugs for even better performance.

Quantity

Please note that the listing and price is for a single length of cable. If you wish to connect a pair of loudspeakers, please order quantity "2" to receive a pair of cables.


Specification


Outside diameter: 13.1 mm
Conductor area: 5.0 mm2
Conductor chemistry: 99.999% oxygen-free copper
Dielectric properties: Air Gap (εr = 1.69)
Loop resistance: 7.0 mΩ/m
Parallel capacitance: 69 pF/m
Dissipation factor @ 10 kHz: 0.0001
Self-inductance: 0.36 μH/m




Post & Packing costs are kept to a minimum:

 

Free Royal Mail 48 UK

 

International Tracked

 

REDUCED postage for additional items

 

 

Cable will be quickly dispatched and securely packed for peace of mind.

 

 

Please contact us if you wish to buy any other lengths or quantities of this cable.

 

 

Buy with confidence - money back guarantee!

 

 

imgbox