€101.00*
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.
| 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 |
"Besonders bemerkenswert ist das Preis-Leistungsverhältnis. In einer Branche, in der hochwertige Verbindungstechnik häufig mit erheblichen Aufschlägen verbunden ist, positioniert sich die S25 Serie bewusst als faire, technisch begründete Alternative zwischen ambitionierter Mittelklasse und klassischem High-End."
"Im Gesamtergebnis erreicht die S25 Serie eine Wertung von 9 von 10 Punkten – ein Ausdruck dafür, wie konsequent, ausgewogen und praxisnah in-akustik dieses Projekt umgesetzt hat. Die Serie ist damit nicht nur ein hervorragender Einstieg ins audiophile Segment, sondern auch eine langlebige Basis für anspruchsvolle HiFi-Ketten, die auf technische Substanz statt kosmetischer Effekte setzen."
Kurz gesagt: Die in-akustik S25 Serie des deutschen Spezialisten in-akustik bietet alles, was hochwertige Verbindungstechnik leisten soll – und verzichtet auf alles, was sie nicht leisten muss. Michael Holzinger | sempre-audio.at | S25 Speaker 425 | S25 Connect 212 Audio & Digital
"Dynamisch lässt das In-akustik Speaker 425 nichts anbrennen, sondern zeigt sogar dem mächtigen Ortofon, dass die Toms in "Yillah" des Hadouk Trios besser balanciert und realistischer klingen, wenn der Impuls einen Hauch zackiger, knackiger und der Oberbass etwas weniger prominent transportiert werden [...] Der eigentliche Zauber dabei ist der „Kick in den Allerwertesten“, zu dem das Speaker 425 meine ATC animiert – auch schon bei recht niedrigen Pegeln. Das spricht für einen wahrlich ungehinderten Energiefluss [...] Und es lenkt die Aufmerksamkeit wiederum auf seine grandiose Impulswiedergabe, die knackiger und nuancierter rüberkommt als selbst mit deutlich teureren Kabeln."
"Das Audioquest Rocket 22 muss sich beiden Kabeln knapp geschlagen geben, da es – auf hohem Niveau – etwas glanzloser und minimal weniger offen wirkt [...] Die Kirschen auf dem Kuchen sind die holografische Genauigkeit auf der ziemlich breiten Klangbühne, die glasklare Transparenz des ehrlichen Hochtons – ohne Härten – und der Umstand, dass In-akustik Explosivität und Spielfreude in dieser Preisklasse realisieren und dann tonal ausbalanciert domestizieren konnte." Michael Bruß | fairaudio.de | S25 Speaker 425 | S25 Connect 212 Audio
"Eines ist sicher: wenige Firmen in unserer Branche machen ihre Arbeit und damit das durchaus kontroverse Thema Kabel so transparent wie in-akustik.[...] Man wird sich schwer tun, für dieses Geld ein auch nur vergleichbares Kabel zu finden [...] Diese Kabel passen hervorragend zu meinen Komponenten und spielen mit ihrem natürlich-neutralen und doch straffen, aber natürlichen Klangcharakter deutlich über ihre Preisklasse hinaus." Christian Bayer | Hifi-Test 06-2025 | S25 Speaker 415 | S25 Connect 212 Audio | S25 Connect 212 Digital
- 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.
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.
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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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