LS-CU

The Referenz LS-1002 has 4 conductors, each with 37 concentrically stranded wires. The cores are arranged in a double symmetrical fashion and specifically configured in the CC-297 design to keep the inductance low and the resistance linear. The larger cable cross-section ensures excellent and controlled bass reproduction and a high level of efficiency. Polyethylene (PE) already boasts excellent electrical properties for audio, video and digital cables. The foaming process creates an air content in this dielectric, which further diminishes any annoying battery-like cable capacitance. The reproduction gains even greater brilliance and spatiality. A layer of solid PE protects the foamed PE from mechanical influences. Inductance is a critical behavioral feature of a cable, causing resistance to the signal flow, rising with the frequency. Multicore architectures, such as that of the LS-1002, reduce this effect and bring more precision and punch to the sound. With conventionally stranded wires, the individual strands run chaotically through the conductor. This leads to undefined contact points, which can result in degraded signal transmission. In contrast to this, each wire in the Concentric Copper structures has a precisely defined position within the conductor. This enables homogeneous signal transmission and ensures crystal-clear audio reproduction.

The LS-104 is an excellent entry-level model to the Micro AIR series. It already stands out clearly from standard cables and demonstrates the acoustic potential of this technology. Sensitive amplifiers in particular harmonize excellently with this cable. The Referenz LS-104 Micro AIR provides an open and relaxed sound. It is also available with BFA bananas or spade lugs and as an Easy Plug version. Click here and discover the exciting details

The Referenz LS-1102 has 6 conductors, each with 37 concentrically stranded wires. The cores are in triple symmetry and have been specifically arranged in the CC-187 design to keep the inductance low and the resistance linear. The larger cable cross-section ensures excellent and controlled bass reproduction and high efficiency. Polyethylene (PE) already boasts excellent electrical properties for audio, video and digital cables. The foaming process generates an air content in this dielectric, which further diminishes any annoying battery-like cable capacitance. The reproduction gains even greater brilliance and spatiality. A layer of solid PE protects the foamed PE from mechanical influences. Inductance is a critical behavioral feature of a cable, causing resistance to the signal flow, rising with the frequency. Multicore architectures, such as that of the LS-1102, reduce this effect and bring more precision and punch to the sound. With conventionally stranded wires, the individual strands run chaotically through the conductor. This leads to undefined contact points, which can result in degraded signal transmission. In contrast to this, each wire in the Concentric Copper structures has a precisely defined position within the conductor. This enables homogeneous signal transmission and ensures crystal-clear audio reproduction.

The conductors of the LS-20 are made of high-purity copper. Under normal conditions, copper is the next-best electrical conductor after silver. Compared to cheap CCA (Copper Coated Aluminum) in particular, copper has a significantly better conductivity and is also mechanically more resilient. The stranded wire design is a tried and tested conductor design in the hi-fi sector. Each conductor consists of 50 x 0.25 mm strands that are "twisted" together. The advantage of this design lies in the economical production and the mechanical flexibility, which increases with smaller diameters of the individual wires.The conductor cross-section of 2x2.5 mm² forms the foundation for a dynamic and powerful sound. The polyethylene (PE) insulation of the LS-40 has very good electrical properties. Compared to PVC, it halves the annoying battery-like capacitance of cables. The reproduction gains in brilliance and spatial quality. The PE network jacket protects against mechanical damage and serves as additional insulation.

Like the flagship model, the LS-204 is also based on Micro Air technology. The difference lies in the multicore architecture. Compared to the XL version, the LS-204 has four instead of six Concentric Copper conductors. This cable boasts an agile character and was primarily developed for slim floorstanding speakers with smaller bass drivers. The Referenz LS-204 Micro AIR is available as a single-wire version with BFA bananas or spade lugs, or as an Easy Plug version. Click here and discover the exciting details

The new Referenz Micro AIR series is a further installment in the success story of the Micro AIR technology: As with the already legendary AIR Helix cables, air is also a central component of the insulation concept in the new Referenz Micro AIR technology. Due to the low speaker impedances, however, low line resistances and a low inductance are also very important for speaker cables. For this reason, the Referenz LS-204 XL Micro AIR uses a total of 6 concentric copper conductors in addition to the air dielectric. Thanks to this multicore architecture, the magnetic fields of the positive and negative conductors overlap and neutralize each other. This significantly reduces the inductance of the cable, which guarantees unaltered transmission of the audio signal over a broad frequency spectrum. Due to our approach, the LS-204 XL has a balanced sound character with precise timing, on top of a solidly controlled foundation. This cable is primarily designed for full-size floorstanding speakers. Sound, of course, is always subjective and depends not least on the overall constellation of a hi-fi system. In the end, the decisive factor is your own personal listening impression. Click here and discover the exciting details

Inductance is a critical behavioral feature of a cable, causing resistance to the signal flow, rising with the frequency. Multicore architectures, such as that of the LS-40, reduce this effect and bring more precision and punch to the sound. The conductors of the LS-40 are made of high-purity copper. Under normal conditions, copper is the next-best electrical conductor after silver. Compared to cheap CCA (Copper Coated Aluminum) in particular, copper has a significantly better conductivity and is also mechanically more resilient. The stranded wire design is a tried and tested conductor design in the hi-fi sector. Each conductor consists of 50 x 0.25 mm strands that are "twisted" together. The advantage of this design lies in the economical method of production and the mechanical flexibility, which increases with smaller diameters of the individual wires. The conductor cross-section of 2x5.0 mm² is the foundation for a dynamic and powerful sound. The polyethylene (PE) insulation of the LS-40 has very good electrical properties. Compared to PVC, it halves the annoying battery-like capacitance of cables. The reproduction gains in brilliance and spatial quality. The PE network jacket protects against mechanical damage and serves as additional insulation.

The LS-404 Micro AIR is a further installment in the success story of the Micro AIR technology: As with the already legendary AIR Helix cables, air is also a central component of the insulation concept in the Referenz Micro AIR technology. Due to the low speaker impedances, however, low line resistances and a low inductance are also very important for speaker cables. For this reason, the Referenz LS-404 Micro AIR uses a total of 8 concentric copper conductors in addition to the air dielectric. Thanks to this multicore architecture, the magnetic fields of the positive and negative conductors overlap and neutralize each other. This significantly reduces the inductance of the cable, which guarantees unaltered transmission of the audio signal over a broad frequency spectrum. Due to our approach, the LS-404 has an extremely balanced sound character with precise timing, on top of a solidly controlled foundation. This cable is primarily designed for full-size floorstanding loudspeakers. The impression sound makes on the listener is always subjective, of course, and depends in no small part on the overall constellation of a hi-fi system. In the end, the decisive factor is your own personal listening impression. Click here and discover the exciting details

The Referenz LS-502 has 2 cores, each with 37 concentrically stranded wires. The cores are arranged in a symmetrical fashion and specifically configured in the CC-297 design to keep the inductance low and the resistance linear. The larger cable cross-section ensures excellent and controlled bass reproduction and a high level of efficiency. Polyethylene (PE) already boasts excellent electrical properties for audio, video and digital cables. The foaming process creates an air content in this dielectric, which further diminishes any annoying battery-like cable capacitance. The reproduction gains even greater brilliance and spatiality. A layer of solid PE protects the foamed PE from mechanical influences. Inductance is a critical behavioral feature of a cable, causing resistance to the signal flow, rising with the frequency. With conventionally stranded wires, the individual wires run chaotically through the conductor. This leads to undefined contact points, which can result in degraded signal transmission. In contrast to this, each wire in the Concentric Copper structures has a precisely defined position within the conductor. This enables homogeneous signal transmission and ensures crystal-clear audio reproduction.

The Referenz LS-602 has 4 cores, each with 37 concentrically stranded wires. The cores are in double symmetry and have been specifically arranged in the CC-187 design to keep the inductance low and the resistance linear. The larger cable cross-section ensures excellent and controlled bass reproduction and a high level of efficiency. Polyethylene (PE) already boasts excellent electrical properties for audio, video and digital cables. The foaming process creates an air content in this dielectric, which further diminishes any annoying battery-like cable capacitance. The reproduction gains even greater brilliance and spatiality. A layer of solid PE protects the foamed PE from mechanical influences. Inductance is a critical behavioral feature of a cable, causing resistance to the signal flow, rising with the frequency. Multicore architectures, such as that of the LS-602, reduce this effect and bring more precision and punch to the sound. With conventionally stranded wires, the individual strands run chaotically through the conductor. This leads to undefined contact points, which can result in degraded signal transmission. In contrast to this, each wire in the Concentric Copper structures has a precisely defined position within the conductor. This enables homogeneous signal transmission and ensures crystal-clear audio reproduction.

The unique AIR technology impressively demonstrates what high-end cables can achieve in terms of sound. For entry into this class, the sophisticated AIR technology is now available for the first time in a flat "ribbon" design for self-assembly. The LS-804 AIR speaker cable has four wires running flat next to each other. The wires in this model are also held in position by specially developed clips and cross-connected at both ends of the speaker cable. In this way, the electrical parameters of capacitance and inductance are finely tuned to each other. The division into several smaller, separate conductors also reduces the skin effect. This is supported by the specially developed Cross Link Super Speed waveguide. In conjunction with the Air technology, i.e. the "omission" of insulation material, which would "soak up" some of the energy like a sponge, the Reference LS-804 AIR is able to follow very fast impulses. The sophisticated details counteract unwanted electrical effects and make this cable an exceptional loudspeaker connection.

The LS-Atmos AIR speaker cable uses Atmos AIR technology to create optimal conditions for precise signal transmission. The design aims to utilize air - an ideal dielectric—as extensively as possible between the signal conductors. At the center of the electric field between the conductors, a defined air chamber is integrated into the cable structure. This reduces capacitance and dielectric losses and helps preserve the integrity of the audio signal. Another key feature is the Concentric Copper conductor design. Each individual copper strand is positioned in a precisely defined location within the conductor. Unlike conventional stranded constructions, where the relative position of the strands continuously changes, this geometry remains stable. The result is consistent electrical properties and controlled signal transmission. The combination of air insulation and a precisely defined conductor geometry supports transparent, detailed sound reproduction with excellent dynamics and natural tonal balance. The LS-Atmos AIR speaker cable is designed for demanding hi-fi enthusiasts who value high-quality materials, thoughtful engineering, and accurate signal transmission.

The LS‑MSR speaker cable is part of in‑akustik’s excellence series and uses the classic MSR technology, based on proven designs from the 1990s. The cable features a twin‑line construction with generous conductor cross-sections, providing a solid foundation for powerful and controlled signal transmission. The conductors are made of high‑purity copper, which offers excellent conductivity and mechanical resilience compared to copper-clad aluminum (CCA) alternatives. This ensures consistent electrical performance and long-term reliability. The fine-stranded conductors 651 x 0,07 mm - speaker cable 2,5 mm² 1050 x 0,07 mm - speaker cable 4,0 mm² 1575 x 0,07 mm - speaker cable 6,0 mm² give the cable high flexibility, making installation and routing easier. Clear plus/minus identification via color coding allows for straightforward connection. The LS‑MSR is sold as metered cable and can be fitted with connectors according to system requirements. The LS‑MSR speaker cable is suitable for hi-fi setups where solid electrical fundamentals, flexibility, and reliable signal transmission are a priority.

The S25 Speaker 225 is the compact solution in the S25 series and ideal for small setups. It impresses with solid performance and surprisingly good spatial imaging. The bass remains controlled and precise without bloating, the mids sound focused, voices natural and tangible. The highs are detailed without harshness. Its slim, discreet design combined with high flexibility makes it especially easy to install – whether visibly on open shelves, behind furniture, or in tight cable channels. This allows the Speaker 225 to seamlessly integrate into almost any setup – both acoustically and visually. Click here to discover exciting details

The S25 Speaker 415 is the versatile solution in the series, impressing both sonically and technically with neutrality, control, and dynamics. The multi-stranded multicore design reduces cable inductance, supporting precise and fast signal transmission. The sound features a defined, powerful bass foundation, cleanly layered mids, and a pleasant openness in the highs – never harsh, but present. The spatial imaging remains stable even at higher volumes. The cable is mechanically robust yet flexible – its unobtrusive jacket and moderate diameter allow for discreet integration into existing hi-fi setups, furniture, or cable ducts. Click here to discover exciting details

The S25 Speaker 425 is the most powerful model in the series, designed for audiophile setups with high power reserves and long cable runs. The large conductor cross-section and low-inductance multicore design ensure exceptionally low-loss transmission – even under high load or long cable lengths. The sound benefits from a particularly controlled, deep-reaching bass with precise punch, clearly defined mids, and an open, detailed high-frequency reproduction. The spatial presentation is stable and wide. Thanks to high-quality materials such as fine-stranded OFC copper, solid crimp contacts, and gold-plated connectors, the signal remains unaltered along the entire length. Its discreet, functionally elegant design and surprisingly high flexibility despite the large cross-section allow for neat, unobtrusive installation – even in complex rack setups or close to walls. Click here to discover exciting details