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QED Silver Anniversary XT 3m Speaker Cables Pre-terminated (QE1432)

QED Silver Anniversay XT provides excellent tonal quality in all frequencies due to the research and development invested into the QED X-Tube technology and in this upgraded cable specifically. The Silver Plated, Oxygen Free Copper stranded conductor is braided around the colour-coded, hollow Polyethylene core so whether you decide to have this cable professionally terminated or simply want to fit your own connectors, this cable will provide excellent surface contact from conductor to the audio connector to offer supberb sound quality.QED have pre-terminated this pair of speaker cables with the QEDs superior Airloc cold weld system and each Banana plug is covered with a colour coded, Red or Black, plastic bodyX-TUBE WITH AIRCORE TECHNOLOGY HOW IT WORKSOne of the biggest problems facing speaker cables is keeping the inductance low as cable conductor size increases. 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 the QED Genesis Silver Spiral loudspeaker cable, 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 SIGNAL1.) 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.Product details2 x 3-Metre Pre-terminated QED Silver Anniversary Speaker Cables using QED Airloc Banana PlugsPlastic bodies, colour coded Red and Black for easy identificationNew design "Forte" plugs offer superior connection for the best sound qualitySpecifications Silver Anniverary Speaker CableConstruction - Figure-8 arrangement using stranded conductor around an X-Tube AircoreNo. of strands per conductor - Triple braid arrangement of 5 groups of 16 x 0.1mm conductor strandsConductor Material - 99.999% Silver Plated, Oxygen Free CopperAircore Material - Low density, Red and White colour-coded PolyethyleneDielectric Material - High performance, low density Clear PolyethyleneDielectric Outer Diameter - 3.90mm x 2Cross-sectional Area - 1.50mmLoop Resistance - 0.021 O/mCapacitance - 50 pF/mInductance - 0.47 H/mDisipation Factor - 0.0006