Inakustik LS-2405 Air Speaker Cables

The Inakustik LS-2405 Air Speaker Cables are designed for listeners who expect true high-end performance from every part of their audio system. Positioned within the Referenz range, this cable builds on the achievements of the earlier LS-2404 AIR and develops them even further through improved construction, refined connectivity, and point-to-point Air Helix architecture.

Its purpose is simple but ambitious: to transport the audio signal between amplifier and loudspeaker with the lowest possible loss and the highest possible fidelity. Because speaker cables carry significant current, they must offer not only a suitable conductor cross-section but also stable electrical behaviour across the entire frequency range.

The LS-2405 is engineered to meet those demands, delivering a sound that is open, highly resolved, and dynamically expressive, while remaining balanced, natural, and controlled even in demanding systems.

Point-to-Point Air Helix for Authentic Sound

A defining feature of the Inakustik LS-2405 Air Speaker Cables is the latest generation of point-to-point Air Helix technology. In this design, the conductors run freely suspended through the length of the cable and are insulated almost entirely by air, which is the ideal dielectric for minimising capacitance.

Unlike conventional insulation materials, which can store and release energy with a delay, air allows the signal to pass with far fewer losses and less distortion. The point-to-point concept means this architecture extends right through the complete cable path, from connector to connector, rather than only between certain structural sections.

The result is an even purer and more direct transmission path. This helps the LS-2405 reproduce music with greater detail, stronger dynamics, and a more natural sense of space, expression, and timing.

Air as the Ultimate Dielectric

The dielectric, or non-conductive material surrounding a conductor, has a major influence on how a cable performs. In many ordinary cables, traditional insulation materials contribute to capacitance by storing part of the signal energy and releasing it slightly later. In audio applications, this is undesirable because it can blur detail, alter timing, and create unwanted interaction with the connected electronics.

The Inakustik LS-2405 Air Speaker Cables tackle this issue by using air as the primary dielectric, dramatically reducing capacitance and dielectric losses. Specially developed internal clips maintain the required spacing between the helically arranged conductors while keeping the structure stable and flexible.

This sophisticated arrangement allows the cable to maintain outstanding transmission accuracy. The audible result is greater openness, better low-level detail, and a more unadulterated reproduction of voices, instruments, and dynamic contrasts.

Cross Link Super Speed Waveguide Structure

The LS-2405 uses Inakustik’s Cross Link Super Speed waveguide, a conductor structure developed to support balanced, precise, and highly stable signal transmission. This braided design helps reduce the skin effect caused by eddy currents within the conductor, ensuring that the full conductor cross-section remains effectively usable across a broad frequency range.

Each individual wire is coated with a fine lacquer layer, which prevents internal eddy currents and protects the conductor material against oxidation over time. This results in a cable that behaves neutrally and consistently, even when reproducing extreme current peaks, complex musical passages, or high playback levels.

Instead of exaggerating certain frequencies or adding artificial character, the LS-2405 maintains tonal balance and composure. It supports a presentation that is vivid and dynamic, yet never overblown, with strong coherence and control from bass to treble.

High-Purity Copper and Multicore Precision

Conductor material is one of the most important foundations of any high-end cable, and the Inakustik LS-2405 Air Speaker Cables use only carefully selected high-purity oxygen-free copper. Any contamination in the metal can reduce conductivity and raise background noise, so special attention is paid to sourcing and processing the copper before it is drawn to the required dimensions.

The LS-2405 also benefits from an 8-fold double-layer multicore design, which significantly reduces inductance. By arranging the conductors so that magnetic field areas overlap and largely neutralise one another, the cable allows signals across the entire audible range to travel without delay or compression.

This is especially important in loudspeaker cables, where inductance can influence transient accuracy and high-frequency performance. The result is cleaner timing, improved fine dynamics, and a presentation in which even the smallest details remain distinct and musically integrated.

Advanced Connectors and 360° Flexibility

The Inakustik LS-2405 Air Speaker Cables are fitted with advanced connection technology designed to match the quality of the cable itself. A major innovation is the use of 360-degree adjustable BFA banana plugs and spade lugs, developed in-house to make installation easier and more secure. Because these connectors move across multiple axes, they can be attached to speaker and amplifier terminals with far less strain on the cable or equipment.

This helps avoid awkward bending, protects delicate surfaces, and reduces the risk of contact resistance. The connector materials are equally impressive, using tellurium copper and beryllium copper rather than lower-grade brass, and finished with rhodium plating for long-term corrosion resistance and stable conductivity. In addition, the contacts are pressure-grouted directly into the conductor with a force of 1.5 tonnes, creating a highly reliable solder-free connection.

Handmade Construction and Rigorous Quality Control

Every Inakustik LS-2405 Air Speaker Cable is handcrafted in Germany with meticulous attention to detail. The complexity of the design means assembly requires real expertise, patience, and precision, and that is exactly what defines Inakustik’s manufacturing philosophy. The cable’s Air Helix structure includes hundreds of individual parts, and the threading and assembly process demands careful manual work by experienced technicians.

Each cable is built using premium materials and controlled production methods to ensure consistency and reliability. Quality control is equally thorough, taking place before, during, and after assembly. Individual component tolerances are checked, electrical tests are performed to detect short circuits or configuration issues, and both functional and mechanical inspections are carried out before final approval.

This disciplined process ensures that every LS-2405 leaving the factory meets the high standards expected of a true reference loudspeaker cable.

A High-End Cable for Musical Truth

The ultimate aim of the Inakustik LS-2405 Air Speaker Cables is not to impress with artificial brightness or exaggerated bass, but to preserve the truth of the original recording. By reducing electrical losses and unwanted interactions to a minimum, the cable allows a system to reveal the emotional energy, tonal nuance, and dynamic scale contained in the music.

Vocals remain pure and expressive, instruments retain their natural body and texture, and complex arrangements are reproduced with clarity and stability. Whether the music is intimate and subtle or large-scale and powerful, the LS-2405 is designed to step out of the way and let the performance speak for itself.

For listeners building a serious high-end system, it offers a combination of advanced engineering, premium craftsmanship, and authentic sound reproduction that fully justifies its reference status.