QED RUBY ANNIVERSARY EVOLUTION DA 3 MT CAVO PER DIFFUSORI TERMINATO NUOVO GARANZIA ITALIA

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RUBY ANNIVERSARY EVOLUTION, FORTY YEARS OF EXPERIENCE ACROSS THE SPECTRUM.The What Hi-Fi? Five Star award winning Ruby Anniversary Evolution cable is a completely new speaker cable from QED laboratories in celebration of FORTY years at the forefront of UK speaker cable design. It utilizes QED “Aircore Technology™” in a new miniature format to bring high end cable philosophies to the budget hi-fi market. It builds on the success of the XT Evolution and Ruby Anniversary cables with which it shares a family heritage but now incorporates increased conductor spacing to further reduce losses and distortions caused by cable capacitance.LENGTH2m 3m 5mAWARDS AND REVIEWS What Hi-Fi? Sound and Vision, October 2013FEATURES AND BENEFITSAIRCORE TECHNOLOGY™QED cables above 2.5mm2 cross sectional area utilize air core 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. RECOMMEND FOR USE WITH QED AIRLOCTM PLUGSQED developed AIRLOC a solder-free, airtight perfect fusion between the two metals of cable and plug. This ‘cold weld’ method allows the cable and plug to offer the optimum signal transfer and therefore, better sound quality. It also reduces contact resistance and ensures perfect long-term performance.COMPLEMENTARY CONDUCTOR GEOMETRYUtilizes conductors of different diameters to carry the same audio signal. This provides an alternative path for high frequency audio components which might otherwise become time smeared in a single audio pathway. SPECIFICATIONSLow density polyethylene dielectricFive 99.999% Oxygen Free Copper conductors5 low density polyethylene filler rods OD 1.02mmAirCore™ TechnologyJacket OD - 6.00mmCross Sectional Area 3 mm2Capacitance 33.4 pF/mLoop Inductance 0.61 µH/mLoop resistance 0.011 Ω/mDissipation Factor@10 kHz: 0.0001Nominal outside diameter 6.0 mmWire gauge - 13 AWG WHAT THIS CABLE IS USED FORCONNECT YOUR:Hi-fiHome theatre systemsTO YOUR:SpeakersCABLES MATTERRuby Anniversary EVOLUTION is a completely new speaker cable from QED laboratories in celebration of FORTY years at the forefront of UK speaker cable design. It utilizes “Aircore Technology™” in a new miniature format to bring high end cable philosophies to the budget hi-fi market. It builds on the success of XT Evolution and Ruby Anniversary cables with which it shares a family heritage but now incorporates increased conductor spacing to further reduce losses and distortions caused by cable capacitance. This new geometry utilizes two conductors of different diameters to carry the same audio signal. This provides an alternative path for high frequency audio components which might otherwise become time smeared in a single audio pathway.   Aircore Technology™ is completely effective in pushing the onset of the skin effect outside of the audio band for cables of large cross –sectional area. Because great sonic benefits are gained from Ruby Anniversary Evolution’s 3mm2 CSA it is essential that the skin effect is dealt with to avoid unwanted non –linearity in the cable’s frequency response (see Bucking the Skin Effect). Because Aircore Technology also reduces the self-inductance of the cable to around half that expected of parallel conductor geometry by calculation, spacing can be increased to reduce capacitance without the extra inductance generated by this change causing audible problems in the cable performance. The use of quality dielectrics coupled with low capacitance means that the rate of energy loss in the cable (its dissipation factor) is extremely low at 0.0001 – our lowest ever figure for a speaker cable. BUCKING THE SKIN EFFECT The graph shows how the resistance (non-reactive part of the impedance) of a speaker cable rises with increasing frequency. This is caused by the skin effect which forces the current to flow towards the outside of the conductors as frequency increases and this problem becomes more pronounced in cables which have a large cross sectional area. As there are great sonic benefits to be gained by increasing CSA (and lowering resistance) high end speaker cables tend to have larger conductors than cheaper ones. The skin effect problem therefore tends to affect high end cables more than thin and cheap ones. If nothing is done about this by careful changes in the cable geometry, the resistance at 20kHz can be much higher than that at dc. This is evidenced by the blue line which shows the behaviour of a typical twin conductor cable (such as cooker flex) with a comparable cross-sectional area to Ruby Anniversary. The blue cable shows an exponential increase in resistance above 4kHz so that within the audio spectrum its resistance increases by as much as 50%. Compare this to the Ruby Anniversary cable (red trace) - the Aircore™ technology has created an electrical field effect which allows the current to utilize the whole of the cross sectional area so that within the audio spectrum the resistance will not rise at all. Of course the skin effect will still come in to play even with this special cable design but the frequency at which it starts has been purposely pushed outside the audio spectrum. AIRLOC TECHNOLOGYAIRLOC is QED’s award winning loudspeaker cable termination method using specialist equipment. Put simply, this is the best termination method to use with QED loudspeaker cables. The science and engineering of loudspeaker cable doesn’t stop with the cable. To perform as the designer intended, the cable needs to have the very best termination, as sound quality can be adversely affected by using inferior connectors. QED developed AIRLOC a solder-free, airtight perfect fusion between the two metals of cable and plug. This ‘cold weld’ method allows the cable and plug to offer the optimum signal transfer and therefore, better sound quality. It also reduces contact resistance and ensures perfect long-term performance.
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Cavi terminati 3 metri
MPN RUBYANNEVO3
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