QED Award Winning Cables

QED

Performance

XT25 BI-WIRE

Speaker Cable

Terminated

2 to 4

Banana Plugs

Heatshrink

Single 1.0m

QED XT25 Bi-Wire available with Airloc connectors

(optional - please ask for details)

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.

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.

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.

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.

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.

Termination

QED XT25 Bi-Wire cable is fully terminated with a total of 6 high quality crimped 4mm banana plugs and finished off with red and black insulating shrink wrap.

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.

Please note, cable termination is also available 4 to 4 plugs, as well as with gold 8mm wide spade connectors, on request. Please ask for details.

Optional Airloc Termination

AIRLOC Forte ABS banana plugs with improved pin section can be 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.

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 for connection to one loudspeaker. If you wish to connect a pair of loudspeakers, please order quantity "2" to receive a pair of cables.

Specification