With the Referenz LS-4004 speaker cable, we continue the incredible story of their Air Helix technology: To achieve perfect air insulation, the new cable uses no less than 16 Cross Link Super Speed waveguides (rather than eight as with the Referenz Air Helix LS 2404). Obviously, the individual conductors themselves play a key role, too. With the LS-4004, too, these are made of 24 high-purity copper wires, each with a razor-thin lacquer coating for extra insulation and braided around a PE core. This design considerably increases stability inside the waveguide by effectively preventing the formation of eddy currents. (These are caused by the very high currents transmitted on the speaker cables – actually the highest ones within the entire audio path.)
- Air-helix structure
- Air dielectric ensures extremely low capacitance
- Cross Link Super Speed waveguide technology
- Double Layer Multicore
- Directly crimped connectors (1.5 T pressure)
- Tellurium-copper connectors
AIR HELIX STRUCTURE
In addition, a new clip capable of carrying the increased load of the updated design had to be constructed. This clip not only must bear the surplus weight of the conductors but also needs to ensure flexibility throughout the cable structure. Just like its smaller predecessor, the new clip suspends the helical conductor arrangement freely in the air while keeping the individual conductors at an exact distance throughout the cable. The clips are meticulously assembled by hand at the on-site factory and then threaded into the Cross Link Super Speed waveguide. Finally, the resulting Air Helix receives a highly protective PE network jacket.
Any extra material used on a cable (e.g. PVC insulation) causes a degradation of its electrical properties – this is just applied physics. Therefore, Referenz cables feature a PE network jacket implemented using complex techniques. Consequently, the cables are made of just two materials: copper and PE. The LS-4004 AIR is a perfect example of a low-inductance speaker cable: The double-layer multicore design leads to a neutralization of overlapping magnetic fields around the individual conductors. This considerably reduces cable inductance, ensuring that all frequencies are transmitted freely and without any latency. Plus a full range of connector options offers maximum flexibility.
AND WHAT ABOUT THE AUDIO QUALITY?
Basically, adding conductor material leads to an increase of the controlled currency throughput. The result is a highly dynamic, incredibly open sound with unprecedented detail.