Inakustik S25 Speaker 425 Speaker-Cable - Single-Bi-Wire

Inakustik S25 Speaker 425 Speaker-Cable - Single-Bi-Wire

Features

• Multicore structure: minimizes inductance, preserves detail
• Tight bass control with precise punch
• OFC copper & gold-plated connectors for minimal crossover losses
• Elegant design, high flexibility
• Conductor cross-section: 2 x 3.0 mm²

Description

The S25 Speaker 425 is the most powerful model in the series and designed for audiophile setups with high power reserves and long signal paths. The large conductor cross-section and low-induction multicore construction ensure exceptionally low-loss transmission – even under heavy loads or with long cable lengths. The sound benefits from a particularly controlled, deep bass with precise punch, clearly defined midrange, and an open, detailed treble reproduction. The spatial representation appears stable and wide-ranging. Thanks to high-quality materials such as fine-wire OFC copper, solid crimp contacts, and gold-plated connectors, the signal remains undistorted over the entire length. Its discreet, functionally elegant design and astonishingly high flexibility despite the large cross-section enable clean, unobtrusive installation – even in complex rack setups or installations close to walls.

Sound doesn't just originate at the speaker.

Speaker cables are far more than mere wires connecting the amplifier and the speaker – they help determine how much of the music actually reaches you. Every cable acts electrically like a filter composed of resistance, inductance, and capacitance. These properties influence whether details are preserved or whether highs lose brilliance and bass loses precision. Especially with speaker cables, conductor cross-section, copper quality, and construction are crucial for low-loss, dynamic signal transmission. The S25 series uses high-purity OFC copper, sophisticated multicore designs, and flexible, robust materials. This keeps the music signal clear, true to its impulses, and authentic – allowing you to hear what's truly on the recording. A good cable doesn't color, but transmits: It is the stable bridge between your components and the musical expression.

Multicore Technology: More Control, More Sound

A technical core of the S25 speaker cables is their multicore construction. Unlike traditional conductors, several finely stranded individual conductors run parallel to each other – this reduces line inductance, improves high-frequency characteristics, and preserves the signal structure even during fast transients. The symmetrical distribution of the conductors also minimizes interference, as magnetic fields partially cancel each other out. This is particularly evident in the Speaker 415 and 425 models, resulting in tight, contoured bass reproduction, precise soundstage imaging, and brilliant detail resolution in the high frequencies. The result: high impulse fidelity, more control, and a spatial sound that doesn't get lost – even during complex passages.

OFC Copper: Pure Material for Pure Music

For the S25 series, we use exclusively high-purity, oxygen-free copper (OFC) with a purity of at least 99.95%. This material offers excellent electrical conductivity and reduces transition losses – even over long cable runs or with high current flow. OFC copper is also particularly resistant to corrosion, ensuring sonic stability for years. Combined with high-quality insulation materials and gold-plated connectors, the signal remains unaltered – from the amplifier output to the speaker terminal. The S25 cables transmit music with high audibility and authentic dynamics – honest, direct, and without artificial coloration.

Crimp technology & gold-plated contacts

Connectors are critical points in every signal path – this is where consistent sound quality is crucial. The S25 series uses professional crimp technology: Fine-stranded copper conductors are compressed under high pressure to create a gas-tight seal, effectively preventing corrosion and ensuring long-term contact stability. Gold-plated connectors ensure consistently low contact resistance and are resistant to oxidation – even with frequent reconnection. This combination guarantees a reliable, sonically clean connection that neither loses details nor slows down dynamics. For lasting sound fidelity – completely maintenance-free.

Every cable is a promise: Quality assurance for the S25 series

Before each S25 series cable leaves our factory, it is individually tested for complete signal continuity. This ensures that every connection, from the connector to the conductor, functions perfectly. This final inspection is part of our uncompromising commitment to quality – because even when entering the world of high-end hi-fi, every detail counts.

Manufactured quality for entry into high-end audio

The S25 series was developed as an entry into the world of high-end hi-fi – 100% Made in Germany. Each cable is manufactured in our in-house factory: carefully handcrafted, individually tested, and technically sophisticated down to the last detail. We invest in high-quality materials, in-depth expertise, and genuine craftsmanship – not in glossy foil or exaggerated packaging. The robust cardboard packaging protects what matters most: your listening experience. Because sound is not created by appearances, but by quality – honest, direct, and authentic.

Specifications

• Connection type: SBW
• Application: HiFi speaker cable
• Construction: 4-core multicore
• Special feature: Highly flexible
• Dielectric: PE
• Color: Dark blue
• Fork width: 6/8 mm stepped
• Marked running direction: Yes
• Cable diameter: 12.5 mm
• Coding: Red | Black
• Conformity: CE, REACH, RoHS
• Contact material: Brass
• Contact plating: Gold-plated
• Conductor construction: 50 x 0.25 mm (2.5 mm²)
• Conductor material: High-purity OFC copper
• Conductor cross-section: 2 x 5 mm² (4 x 2.5 mm²)
• Jacket: PVC
• Connector assembly: Crimped contacts (1.5 tons), screw contacts
• Routine test: Continuity and short circuit of all conductors