Why not just increase the copper cross section?
heoretically, the copper cross-section could simply be increased. However, this would require considerable compromises in cable construction, which would ultimately have a negative effect on the sound. That is why we have decided to deliberately disregard the costs and instead consistently expand the limits of what is feasible once again. The result is a combination of the legendary AIR Helix construction and the associated air insulation (the best possible dielectric in addition to the vacuum) with the best conductor material in the form of pure silver - instead of, for example, alloyed or merely silver-plated wires. The high quality sound of the outstanding AIR-Silver cables now sets new standards in the high-end sector.
Air isolation & flexibility
The AIR Helix construction is absolutely unique. In order to come as close as possible to perfect air insulation, in-akustik has developed special clips. Inside the cable, a large number of these clips form the supporting framework, which keeps the signal conductors helically free in the air and guides them through the cable at a defined distance. The flexibility of this construction is achieved with the LS-4004 AIR Pure Silver by joints in the clips
We have opted for Tellurium copper as the conductor base material rather than brass. This is because Tellurium copper offers almost twice the conductivity. Than using custom made machine strips, a complex technique with lacquer coating on the highly pure copper wires of the Cross Link Super Speed waveguide is formed. Afterward the bare wires are crimped with a 1.5-t pressure directly on the connector. This technique prevents the occurrence of contact resistance that often occurs with the use of additional materials such as solder, wire and sleeves. The connector surfaces are rhodium coated because this is an extremely robust material that insures optimum contact.
Electrostatics and capacity
If you take off a sweater with a high synthetic content it crackles
and sparks. The reason for this is that the integrated plastic material
stores electrical energy, which is then discharged again. The same
happens in the insulation material of a cable. It „absorbs“ electrical
energy like a sponge and then releases it again. With an audio cable,
however, these are parts of the audio signal. A dimension for this is
the cable capacity, i.e. the unwanted storage capacity of the cable.
While capacitors are supposed to store energy and have a correspondingly
high capacity, the capacity of the cable should be as low
as possible. It significantly influences the transmission characteristics
through losses and also leads to interactions with the connected
electronics. The ideal solution is therefore an air insulation such as
the one implemented with the Air-Technology, as this separates the
„capacitor plates“ of the cable and thus reduces the capacitance.
Handmade in Germany
Just like all speaker and audio cables from our Reference series, the Digital-2404 Air Pure silver are entirely manufactured in Germany. The clips are meticulously assembled by hand at on-site factory in Germany. The resulting Air Helix design then receives a PE network jacket before the finish cable is subjected to a thorough and final inspection.