in-akustik Speaker Cables

LS-1205 AIR

Four-fold multicore. Entry to AIR Helix.

The LS-1205 AIR is the entry point to in-akustik's full Air Helix speaker cable range. Its four-fold multicore structure reduces inductance through magnetic field cancellation, while Point-to-Point Air Helix insulation minimises capacitance from connector to connector. A genuine Reference cable at a more accessible price.

At a Glance

●4-fold multicore structure

●Point-to-Point Air Helix (5th gen)

●Cross Link Super Speed waveguides

●360 degree three-axis BFA & spade lugs

●Pressure-grouted rhodium contacts

●Handmade in Germany

Key Features

4-Fold Multicore

Four conductors with overlapping magnetic fields reduce inductance for a neutral, dynamic frequency response.

Point-to-Point Air Helix

Fifth-generation air insulation extends from connector to connector for minimal capacitance.

Cross Link Super Speed Waveguides

Prevents eddy currents at high frequencies, ensuring sharp transients and full high-frequency extension.

360 Degree Connectors

Three-axis rotation BFA banana and spade lug connectors with rhodium-coated contacts, pressure-grouted at 1.5 tonnes — no solder in the signal path.

Technologies Inside

AIR Technology

Air is the perfect insulator.

Now in its fifth generation, AIR technology uses air as the primary dielectric instead of traditional plastics like PVC. Conductors run freely suspended through the cable via precision-engineered clips at defined intervals, reducing capacitance by approximately 83% compared to standard cables. The Point-to-Point Air Helix architecture extends this principle from connector to connector for almost loss-free signal transmission.

Cross Link Super Speed

Eliminating eddy currents at high frequencies.

Cross Link Super Speed waveguides are hand-threaded into the cable structure to prevent eddy current effects at high frequencies. This preserves the full detail and extension of the audio signal across the entire audible spectrum, ensuring transients remain sharp and high-frequency information arrives intact.

Multicore Architecture

Overlapping fields, lower inductance.

in-akustik's multicore conductor arrangements use four-fold structures where the overlapping magnetic fields of individual conductors deliberately cancel each other out. This reduces inductance and minimises the skin effect at high frequencies, delivering a more neutral, dynamic frequency response.

360 Degree Pressure-Grouted Connectors

Three-axis rotation. 1.5 tonnes of force. Zero solder.

in-akustik's 360-degree BFA banana and spade lug connectors move across three axes, making connection and disconnection effortless while preventing cable stress. Instead of soldering, which introduces additional metal alloys and weak points, each connector is pressure-grouted at 1.5 tonnes of force — creating a gas-tight, vibration-resistant bond. BFA bananas use beryllium copper with solid metal housings, while spade lugs use tellurium copper, both rhodium-coated for lasting conductivity and corrosion resistance.

AIR Helix Point-to-Point

Fifth-generation air insulation, from plug to plug.

The AIR Helix design suspends conductors in a helical arrangement through the cable using specially engineered clips at precise intervals. Air replaces traditional plastic insulation as the primary dielectric, reducing capacitance by approximately 83%. The fifth-generation Point-to-Point innovation extends this architecture from connector to connector, with specialised transitions for each plug-cable combination eliminating the last remaining sections of conventional insulation.