in-akustik Audio Cables

NF-2405 AIR Pure Silver

Pure silver Air Helix. 195 components per pair.

The NF-2405 AIR Pure Silver replaces copper conductors with high-purity solid silver within the 25 mm Air Helix architecture. Each 1.5 m pair comprises 195 individual components, all hand-assembled at in-akustik's German facility. Silver's 6% higher conductivity and 1.5x faster electron drift deliver enhanced transparency and detail retrieval. Available in both RCA and XLR configurations.

At a Glance

●Pure silver conductors

●25 mm cable diameter

●Point-to-Point Air Helix (5th gen)

●195 components per pair

●Available in RCA & XLR

●Handmade in Germany

Key Features

Pure Silver Conductors

High-purity solid silver at 61.35 S/m conductivity — the highest electrical conductivity of any element, for maximum signal preservation.

25 mm Air Helix Diameter

Air insulation from connector to connector, combined with silver's superior conductivity for the lowest possible signal loss.

195 Hand-Assembled Components

Each pair is built from nearly 200 individually threaded and assembled components at in-akustik's German facility.

360 Degree Connectors

RCA SL with rhodium-coated tellurium copper contacts pressure-grouted at 1.5 tonnes; XLR with 180-degree rotatable plugs.

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.