QED Original Loudspeaker Cable
Original builds on the qualities of QED 79 Strand by adding a low density polyethylene dielectric to cut down on the
amount of audio signal energy lost due to cable capacitance. 99.999% oxygen free copper conductors and
optimised geometry are used to deliver the superb sound quality of this low cost cable.
QED Original Speaker Cable features the following QED Technologies:
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.
Low Loss Dielectrics
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™ (PTFE) in preference to cheaper PVC
alternatives found in inferior unbranded cables.
If a bare wire termination method is used the exposed copper quickly oxidizes increasing the resistance of the
cable, which has a detrimental effect on the fidelity of the sound you hear. Available as an option, QED Airloc plugs
eliminate this problem by preventing oxidization and providing a gold plated mating surface which remains low
resistance for ever.