Retail Price: £500.00
Our Price: £422.00
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Warranty: Lifetime Warranty
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Ideal for use in high quality hi-fi and home theatre systems. The QED XT300 features 99.999% Oxygen Free Copper stranded braid conductors, Polyethylene AirCore™, Aluminium Mylar conductive wrap and PTFE tape wrap as well as 2 x 3.0mm2 conductors. Dimensions 11.8 x 5.5 mm.
X-TUBE™ with Aircore™ technology is a genuine breakthrough in loudspeaker cable design. This cable range delivers many of the attributes of our world-renowned Genesis Silver Spiral cables - superb transparency, dynamics and control - in a more compact cable format.
X-TUBE™ is designed to be the natural upgrade for anyone using QED’s Silver Anniversary speaker cables or those simply wanting the best performance for their hi-fi or home theatre system.
The construction of these cables is uniquely QED: multiple Silver Plated conductors surrounding a polyethylene core, precise spiral geometry within the transparent outer jacket and excellent shielding. A truly balanced design that has been universally praised by the world’s specialist press as a true high-end performer.
"...a fast, exciting, yet well-balanced cable...instruments and vocals leap out with more presence than budget What HiFi Magazine
"...It allows more resolution in the bass and treble, and has a powerful, informative way with midband detail." Hi-Fi Choice
"...the sound is blessed with unusually fine bass and stereo imaging for a cable at this price. An Award winner for the second year running, its natural tonality, balance and detail keep it ahead of the game at £10/m." Hi-Fi Choice
"...Its sound is natural and well controlled, with excellent bass and an overall balance of virtues that make it a fine recommendation for a wide range of systems." Hi-Fi Choice
The QED XTUBE XT-300 Anniversary connects your Amplifier to your speakers.
FEATURES
- QED X-Tube XT-300 Speaker Cable
- Large 2 x 3.0mm2 conductor cross-sectional area
- 99.999% Oxygen Free Copper stranded braid conductors
- Compact figure ‘8’ construction
- Polyethylene AirCore™
- Aluminium Mylar conductive wrap
- PTFE tape wrap, PVC outer jacket.
- Dimensions 11.8 x 5.5 mm.
- Terminal connectors - Optional. Choice of AIRLOC Banana or AIRLOC Spade terminal plugs
- Lifetime Warranty.
X-TUBE™ WITH AIRCORE™ TECHNOLOGY – HOW IT WORKS.
One of the big problems as cable conductor size increases, is how to keep the inductance low. This is vital to reduce cable losses and prevent inaccuracies in the signal transfer process, i.e. distortion.
The normal way to do this is to use a number of individually insulated conductors within the cable construction. This method is utilised to great effect in the design of our Genesis Silver Spiral loudspeaker cables. However, this results in a product that has a very high quality sound performance, but is expensive to manufacture and can be difficult to terminate.
To take advantage of this design ethos, but in a more conventional format, X-TUBE forms the conductor in the shape of a tube with an inner aircore. This has the same effect as using multiple insulated conductors and ensures that high frequencies are transmitted cleanly, with the added benefit of ease of termination. This unique tubular conductor geometry also provides lower flux density within the conductors, which gives improved transparency to the sound.
THE SIGNAL
1.) At low frequencies both X-TUBE™ and conventional stranded/solid core speaker cable convey signals in a linear way. This is represented by the uniform green colour of the strands shown in the two diagrams above.
2.) At higher frequencies X-TUBE retains a near-linear signal transfer, whereas the conventional stranded/solid core cable fails to efficiently conduct higher frequencies uniformly across the entire conductor area. The diagram shows excess current density at the periphery (designated in red) and rapidly deteriorating current density (green through to white) 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. The result is induced distortion and a compromise in the performance of the cable.
X-TUBE with Aircore™ technology exhibits much lower self-inductance and is therefore less affected by this problem. The use of an innovative Polyethylene aircore enables a reduction in loop inductance to levels only usually achievable by using more costly and difficult to terminate cables.
Keywords xtube, xt300, qed x-tube, qed xt-300
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