Inakustik Connect 212 Digital RCA 1m

The Connect 212 Digital from Inakustik is a digital coaxial cable from the S25 series. Manufactured in Ballrechten-Dottingen, where the brand has been producing its cables since 1977, it combines meticulous technical design with artisanal craftsmanship. It features a 75-ohm impedance, in line with standards for digital transmission, and is designed to ensure stable transmission of high-resolution audio formats, while remaining discreet once integrated into a system.

A Design Engineered to Tame the Digital Signal

Beneath its 8.5 mm dark blue sheath, the Connect 212 Digital reveals a complex architecture. At the heart of the cable, seven strands of 0.20 mm OFC copper are intertwined to form a 24 AWG conductor. This multi-strand configuration ensures remarkable flexibility while maintaining signal integrity.

Insulation plays a decisive role in this cable’s performance. Inakustik uses expanded polyethylene, a dielectric material incorporating micro air bubbles. This cellular structure minimizes electrical capacitance, allowing for high transmission speed while preserving the subtlest details of the digital stream. The material acts as an invisible shield against signal loss that can compromise the timing accuracy of the data.

The shielding serves as a true armor against the electromagnetic interference omnipresent in our modern environments. A dense braid of 186 copper strands surrounds the central conductor, creating an effective Faraday cage. This protection is especially relevant against disturbances generated by Wi-Fi, Bluetooth, and other radio emissions that proliferate in our listening spaces.

Solid metal RCA connectors with gold plating complete this meticulous construction. The plating ensures minimal contact resistance while preventing long-term oxidation. Each connector is precisely soldered during final assembly in Germany.

75 Ohm Impedance: A Fundamental Technical Requirement

Impedance matching is a critical parameter for digital coaxial cables. The Connect 212 Digital maintains a precise 75-ohm impedance along its entire length, thus meeting the standard established for S/PDIF digital audio interfaces.

This consistent impedance prevents signal reflections at the cable ends. In digital transmission, such reflections generate echoes that overlap the main signal, creating inter-symbol interference. This phenomenon results in jitter—timing variations in the arrival of digital samples that degrade final sound quality.

The cable’s symmetrical design also contributes to this stability. The floating shield—a technical feature often overlooked—effectively isolates the signal from external disturbances while avoiding ground loops. The signal direction indicator on the cable allows for optimal configuration during installation.

The S25 Series: Entry into the High-Fidelity Segment

The Connect 212 Digital belongs to the new S25 series, positioned as the entry point to Inakustik’s high-end segment. This range adopts the technical principles of the higher series while offering more accessible pricing.

The S25 series reflects a desire to democratize the technologies developed for the Referenz and Exzellenz ranges. The selected materials—OFC copper, expanded PE dielectric, gold-plated connectors—come from the same supply chains as the top-tier models. Only certain construction refinements distinguish the different series.

This approach allows the Connect 212 Digital to deliver outstanding performance in its price category. Jitter-free transmission of high-resolution formats, once reserved for expensive cables, is now accessible to evolving systems.

Technical Specifications

Key Features

• Lossless, jitter-free transmission even for high-resolution formats
• Air bubble PE dielectric: very low capacitance, high transmission speed
• Ultra-dense shielding: optimal protection against Wi-Fi / Bluetooth interference
• Gold-plated connectors: minimal contact resistance and increased durability
• German handcrafted manufacturing: controlled quality, consistent performance

Electrical Specifications

• Characteristic impedance: 75 ohms (precisely matched)
• Design: symmetrical
• Signal direction indicator: yes
• Floating shield: yes

Physical Construction

• Cable diameter: 8.5 mm
• Conductor
  • Section: 24 AWG
  • Configuration: 7 x 0.20 mm
  • Material: high-purity OFC (oxygen-free) copper
• Dielectric: low-capacitance expanded polyethylene
• Shielding: high-density copper braid (186 strands)
• Sheath: PVC
• Special feature: very flexible

Connectors

• Type: 1 x RCA (male) to 1 x RCA (male)
• Assembly: soldered
• Housing: solid metal
• Contact material: brass
• Contact treatment: gold-plated
• Custom assembly: on request

Available Configurations

• Lengths: 0.75 m, 1 m, 1.5 m
• Color: dark blue

Quality and Compliance

• Individual control: continuity and short-circuit test of all conductors
• Compliance: CE, REACH, RoHS
• Quality test: individual signal continuity check