NEXT DAY DELIVERY (If ordered before 4.30pm Mon to Fri)
The QED Silver Anniversary XT has been specifically designed as the natural replacement for the multi-award winning Silver Anniversary speaker cable. Designed with performance in mind, the Silver Anniversary-XT speaker cable boasts all of the characteristics associated with Silver Anniversary but with the added enhancement of the Aircore technology found in the prestigious X-Tube series.
“Product of the Year 2005, 2006 & 2007". What Hi-Fi Sound & Vision
“This excellent product has been our budget cable benchmark". What Hi-Fi Sound & Vision July 2008
The QED Silver Anniversary XT connects your Amplifier to your speakers.
X-TUBE™ WITH AIRCORE™ TECHNOLOGY – HOW IT WORKS.
- QED Silver Anniversary XT Speaker Cable
- Awarded Speaker Cable of the Year 2005, 2006 &2007 What Hi-Fi Magazine
- Unique SPOFC triple braid 5 x 16 x 0.1mm
- Compressible Teflon Aircore for ease of termination
- Low resistance, low capacitance and low inductance
- Easy strip Polyethylene outer jacket
- 2 x 1.88mm2 conductor cross sectional area
- Terminal connectors - Optional. Choice of AIRLOC Banana or AIRLOC Spade terminal plugs
- Lifetime UK Warranty
- SAME DAY DISPATCH BY FIRST CLASS POST (If ordered before 4.30pm Mon to Fri)
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.
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.
WHY CHOOSE QED AIRLOC FORTE
When AIRLOC Forte plugs are fitted to a cable they are subjected to such high pressure they undergo a process called 'cold welding' which transforms the plug and cable into one solid piece of metal.
The graph below shows that when full pressure is reached, resistance is at a minimum. In addition, because all the air has been removed, there will be no degradation of sonic performance caused by oxidisation of the contact area, for the whole lifetime of your cable.
NEW QED AIRLOC Forte plugs enable optimum performance and maintain signal integrity between amplifier and speaker.
QED speaker cables only use 99.999% oxygen free copper, in many cases enhanced by silver plating.
In Order to maintain channel tonal balance and minimise speaker cable resistance you should make sure your cables are of equal length.