Product information "Connect 212 Sub-Mono"

The Connect 212 subwoofer cable is specially designed for the lossless transmission of low-frequency signals in home theater and hi-fi setups. Its elegant, unobtrusive design and high flexibility allow for discreet and easy integration into any system. The signal conductors, made of highly pure, oxygen-free OFC copper, are insulated with foamed polyethylene - a dielectric with an especially low constant that minimizes signal loss and ensures precise, dynamic bass reproduction.

The symmetrical construction with separate conductors for signal and ground, along with dense, interference-free shielding, effectively protects against disturbances from Wi-Fi, Bluetooth, or mobile signals. The tightly woven copper braid made from 186 strands ensures clean signal transmission even in demanding environments. Robust solid metal connectors with gold-plated contacts provide consistently low contact resistance and a reliable connection - even after many plug cycles. Each cable is handcrafted in our workshop and individually tested to guarantee the highest quality and long-lasting performance.

Click here to discover exciting details

Application: LFE - Low Frequency Effects
Cable diameter: 8.5 mm
Color: Darkblue
Conductor cross-section: 24 AWG
Conductor design: 7 x 0.20 mm
Conductor material: High-purity OFC copper
Conformity: CE, REACH, RoHS
Connector assembly: Soldering
Connector housing: Solid metal
Contact enhancement: Gold-plated
Contact material: Brass
Customized assembly: On request
Design: Symmetrical
Dielectric: Foamed PE
Floating shield: Yes
Indicated signal direction: Yes
Individual inspection: Continuity and short circuit testing of all conductors
Jacket: PVC
Length: 2 m, 3 m, 5 m
Shielding: Dense copper braid
Special feature: Highly flexible
in-akustik product group: Home HiFi
in-akustik category: Subwoofer cables
Quality: Exzellenz
Technology: LFE Low Frequency Effects
Connector: 1 x RCA > 1 x RCA
Made in Germany: Yes
  • 1 x Connect 212 Sub Mono

If you have any questions about product safety, please contact:
in-akustik GmbH & Co. KG
Untermatten 12-14
79282 Ballrechten-Dottingen
Germany
Tel.: +49 (0) 7634 5610-0
E-Mail: service@in-akustik.de

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Sound doesn't start at the amplifier

Audio cables are far more than simple connections between source and amplifier – they play a crucial role in how much of the music actually reaches you. Every RCA cable acts electrically like a network of resistance, capacitance, and inductance. These properties influence whether details are preserved or whether highs lose brilliance and lows lose precision. Especially with audio interconnects, copper quality, insulation, and shielding are essential for low-loss, interference-free signal transmission. The S25 series uses high-purity OFC copper, foamed PE dielectric, and flexible, durable materials. This keeps the music signal clear, true to the source, and authentic – so you hear what’s really on the recording. A good cable doesn’t color the sound – it transmits it. It’s the solid bridge between your components and musical expression.

Foamed PE: High-Quality Dielectric

A key quality feature of the S25 audio cables is the foamed polyethylene (PE) used as the dielectric. Air is – right after vacuum – the best dielectric because it has an extremely low dielectric constant. Foamed PE takes advantage of this by enclosing microscopic air bubbles within the material. This significantly reduces the electrical conductivity of the insulator and minimizes the cable's capacitance. The result: signal losses are drastically reduced, and the transmission remains clear, fast, and natural. Compared to solid insulators like PVC, the foamed PE dielectric ensures especially precise and uncolored sound reproduction. This allows even the finest details, dynamics, and spatiality of your music to fully come through – creating a listening experience that comes very close to the original in the studio.

  • "A good cable is like an interpreter between artist and listener: The more neutral and precise it works, the closer you are to the original. That’s exactly what we aimed to achieve with the S25 series."

    Product developer Holger Wachsmann

OFC Copper: Pure Material for Pure Music

For the S25 audio cables, we use only highly pure, oxygen-free copper (OFC) with a purity level of at least 99.95%. This material offers excellent conductivity and reduces contact losses – even over longer cable runs. Additionally, OFC copper is especially resistant to corrosion, ensuring sonic stability over the years. Combined with the foamed PE dielectric and dense shielding, the signal remains unaltered – from the source to the amplifier. The S25 cables deliver music with high clarity and authentic dynamics – honest, direct, and without artificial coloration.


Dense Shielding & Floating Shield

Especially for RCA audio cables, high-quality shielding is crucial to protect the sensitive signal from interference caused by Wi-Fi, Bluetooth, or power supplies. The S25 series relies on a tightly woven high-density copper braid and a so-called floating shield: the shielding is electrically separated from the signal and directs interference away without acting as a source of noise itself. This keeps the audio signal free from hum, noise, and high-frequency interference – even in demanding home environments. The result is a clean, interference-free transmission with maximum detail accuracy.

  • Thoughtful engineering

    The S25 series combines high-quality materials, intelligent design, and skilled craftsmanship into an audiophile cable concept that makes high-end sound accessible to newcomers.

Every cable a promise: Quality assurance in the S25 series

Before any cable from the S25 series leaves our manufacturing facility, it is individually tested for complete signal continuity. This ensures that every connection from the plug to the conductor functions flawlessly. This final inspection is part of our uncompromising commitment to quality – because even at the entry level of high-end hi-fi, every detail matters.

Manufacturing quality for entry into high-end

The S25 series was developed as an entry point into the world of high-end hi-fi – 100% made in Germany. Each cable is produced in our in-house workshop: carefully handcrafted, individually tested, and technically refined down to the last detail. We invest in high-quality materials, solid expertise, and genuine craftsmanship – not in glossy wrapping or excessive packaging. The sturdy cardboard packaging protects what matters most: your listening experience. Because sound doesn’t come from appearances, but from quality – honest, direct, and authentic.

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The Connect 212 subwoofer cable is specially designed for the lossless transmission of low-frequency signals in home theater and hi-fi setups. Its elegant, unobtrusive design and high flexibility allow for discreet and easy integration into any system. The signal conductors, made of highly pure, oxygen-free OFC copper, are insulated with foamed polyethylene - a dielectric with an especially low constant that minimizes signal loss and ensures precise, dynamic bass reproduction. The symmetrical construction with separate conductors for signal and ground, along with dense, interference-free shielding, effectively protects against disturbances from Wi-Fi, Bluetooth, or mobile signals. The tightly woven copper braid made from 186 strands ensures clean signal transmission even in demanding environments. Robust solid metal connectors with gold-plated contacts provide consistently low contact resistance and a reliable connection - even after many plug cycles. Each cable is handcrafted in our workshop and individually tested to guarantee the highest quality and long-lasting performance. Click here to discover exciting details

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The Premium subwoofer cable offers impressive sound quality thanks to its high copper content, ensuring powerful and dynamic sound. Thanks to its double shielding, external interference is reduced to a minimum, while the robust cable sheath protects the internal structure from mechanical damage. The cable uses PVC, a versatile and flexible material perfect for this purpose. Additional protection is provided by the textile braiding that encases the cable. 24K gold plating ensures optimum conductivity: gold evens out any tiny irregularities and enlarges the contact surface. This serves to reduce undesirable transition resistance and protects the contact surfaces from corrosion in the long term. The conductor cross-section of the cable is 24 AWG, which helps to transmit sound with greater clarity and detail, especially in the lower bass frequency ranges. This enables a more efficient transmission of electrical current and minimizes the resistance in the cable. Overall, this subwoofer cable delivers outstanding audio quality for discerning audio fans.

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The Premium Y-subwoofer cable offers outstanding sound quality thanks to its high copper content, ensuring powerful and dynamic sound. Double shielding reduces external interference to a minimum and ensures unhampered audio playback. The cable sheath not only serves aesthetic purposes, it also protects the internal structure from mechanical damage. This sheath is made of versatile and flexible PVC, ideally suited to this purpose. In addition, the cable is covered with a textile braid, providing further protection to increase its durability. The 24K gold plating of the plugs is of crucial importance: gold is a very soft material and evens out tiny irregularities. This leads to an enlarged contact surface and reduces undesirable transition resistance. In addition, the precious metal offers long-lasting protection against corrosion, so increasing the service life of the cable. Another important aspect is the conductor cross-section of 24 AWG, which helps to transmit the sound with greater clarity and detail, especially in the lower bass frequency ranges. This enables a more efficient transmission of electrical current and minimizes the resistance in the cable. Overall, the Premium Y-subwoofer cable is a first-class choice for audiophile users looking for the highest quality of audio transmission.

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