QED, A REPUTATION FOR EXCELLENCE
The multi-award winning Silver Anniversary XT cable delivers superior performance for all your hi-fi and reference home theatre needs
• QED Silver Anniversary XT jumper links, are a stereo pair for connection, to a pair of loudspeakers and are fully terminated with QED OFFICIAL gold-plated spades.
• Designed with performance in mind, QED 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 most prestigious QED X-Tube cables.
• The precise cylindrical construction of the silver-plated, 99.999% pure, oxygen free copper cables reduces the distortion caused by ‘skin effect’.
• The result is a completely neutral speaker cable that will allow your hi-fi or home cinema system to perform at its best.
• The cable is a standard ‘figure 8’ configuration and is attractively finished, with each silver-plated core visible through a flexible 3.9mm diameter clear polyethylene outer sheath.
• QED has an extensive range of high-quality products from entry level to high-end cables. Learn more about QED cable technologies.
THE UK'S #1 TESTING FACILITIES
• QED's reputation for innovation and technical excellence is known throughout the world.
• The latest computer-aided design techniques allow our research and development team to keep pace with technological advances and deliver products that achieve the highest levels of performance and reliability.
LIFETIME GUARANTEES ON CABLE PRODUCTS
• QED cables are engineered to the highest standards which is why we're able to offer a lifetime guarantee across many of our products.
• Silver Anniversary XT has been specifically designed for high quality audio reproduction for Hi-Fi and Home Cinema
• Combining the features of Silver Anniversary with the added enhancement of X-Tube(TM) technology to combat the skin effect and deliver stunning detail.
• We can custom build a cable to your specification, just let us know the lengths you need and the termination options from our range of QED and Premium New Improved 24k Gold Plated Spades and banana plug connectors, all of which use the QED AirLoc technology (where possible) to cold weld the cable for maximum performance.
Key Features
• 8 gold-plated standard spade terminals
• Distance between spades 120mm
• Low resistance, low capacitance and low inductance
• Unique SPOFC triple braid 5 x 16 x 0.1mm
• Distance between spade forks 8mm
• Cable with compressible Teflon Aircore™
• 2 x 1.88mm2 conductor cross sectional area
• High performance low density polyethylene dielectric
• Cuts down on the amount of audio signal energy lost due to cable capacitance Silver plated 99.999% OFC conductors
• Provides a low frequency path for the audio signal and delivers stunning high frequency detail
AIRCORE TECHNOLOGY
- In loudspeaker cables electrical current does not flow smoothly because - rather like in a river - small eddy currents are formed.
- Eddy currents in one conductor can affect the current flowing in an adjacent conductor so that currents flowing in the same direction move away from each other.
- This "Proximity Effect" increases resistance as frequency increases which has a detrimental effect on the fidelity of the sound you hear.
- QED Aircore Technology builds on the science of X-Tube Technology and eliminates this problem by using individually insulated twisted strands arranged around a hollow core to solve both the proximity and skin effects.
- QED cables above 2.5mm2 cross sectional area utilise Aircore technology to obviate the skin effect by bundling several separately insulated smaller cores together to make up a larger CSA.
- If these conductors are arranged around a hollow central core of polyethylene the self inductance exhibited by the cable can be reduced to around half that predicted by calculation.
X-TUBE TECHNOLOGY
- In loudspeaker cables high pitched sounds are forced to travel towards the outside of the conductor and so are able to use less and less of the available cross-sectional area as the pitch increases.
- This is called the "Skin Effect". It means that for high frequencies the resistance of the cable appears to be much higher than it does for lower pitched sounds.
- This has a detrimental effect on the fidelity of the sound you hear.
- QED X-Tube Technology solves this problem by creating a hollow tubular conductor geometry through which each frequency can pass with equal ease when compared to traditional solid or stranded conductors.
- At low frequencies both X-TubeTM and conventional stranded/solid core speaker cables convey signals in a linear way.
- However, at high frequencies, X-TubeTM retains a near-linear signal transfer, whereas the conventional cable fails to conduct uniformly across the entire conductor area.
- The result is that X-TubeTM delivers greater fidelity across the audio spectrum which would other wise be lost in ordinary cables.
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99.999% Oxygen Free Copper
- Speaker cables have to carry a lot of current.
- If the electrical resistance of the cable is too large, part of the music signal will be lost, causing a detrimental effect on the fidelity of the sound you hear.
- To stop this from happening we make the resistance of our speaker cables as small as possible. We do this by using the largest practical cross- sectional area of copper within the size constraints of each cable.
- In order to squeeze the last drop of performance from the conductors we make sure that there are no impurities in the copper which would defeat the object of making them so large.
- That's why we use 99.999% oxygen free copper exclusively.
Silver Plated 99.999% Oxygen Free Copper
- Speaker cables must exhibit the lowest possible resistance to the flow of electrical current. The larger the cross- sectional area of the conductors the smaller the resistance will be.
- However the cable must be small enough to be practical for its intended use. Although copper is a very good electrical conductor, silver is even better.
- By using it in our top of the range cables we can improve conductance without making the cable larger.
- As the pitch of the sound increases the current flows more and more to the outside of the conductors so we cunningly use silver plated 99.999% oxygen free copper conductors to reduce resistance only where it is needed, thus saving you money.
Low Loss Dielectric
- Music signals in a loudspeaker cable move back and forth many times every second.
- The insulating material used to separate the send and return conductors from each other (the dielectric) has to be charged and discharged every time.
- Not all of the energy stored in the dielectric during each charge cycle is completely returned during each discharge cycle which has a detrimental effect on the fidelity of the sound you hear.
- That's why at QED we use low loss dielectric materials such as Polyethylene (PE) or Teflon(TM) (PTFE) in preference to cheaper PVC alternatives found in inferior unbranded cables.
AWARDS AND REVIEWS
