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Product details

Advanced Specifications
  • Conductors: 2 × 21 AWG OCC copper conductors / 2 × 21 AWG OFC multi-strand conductors
  • Copper purity: 6N
  • Structure: twisted pair
  • Shielding: triple-layer (OFC braided shield + aluminium foil + PVC jacket)
  • Connectors: 4 × nickel-plated male RCA
  • Outside diameter: 7 mm per conductor
  • Lengths: 0.5m, 1m, 1.5m, 2m, 2.5m, 3m, 3.5m, 4m, 4.5m, 5m, 5.5m, 6m
Key Features
  • The OCC and OFC conductor mix is specified to support clean signal transfer while keeping the cable practical to route and terminate.
  • Twisted pair geometry is used to help reject induced noise when RCAs run near power wiring or factory looms.
  • Triple-layer shielding is there to reduce common in-car interference, supporting a quieter signal path in electrically busy environments.
  • Nickel-plated RCA connectors are specified for stable contact and corrosion resistance in permanent installs.
  • The stated 7 mm construction is intended to balance durability with flexibility for routing in tight interiors.
Best Suited For
  • DSP-to-amplifier and source-to-DSP runs where interference control matters
  • Vehicles where RCA routing must share space with power and factory wiring
  • Systems where stable connectors and shielding quality are prioritised over cosmetic features
  • Installations needing a balance of flexibility and robust cable construction
Why OSCA Backs This Product

Octave sits in the sensible middle ground where you want a properly built interconnect with serious shielding and decent conductor spec, without going straight to the thickest, most specialised cables in the range. The spec calls out twisted geometry, triple-layer shielding, and corrosion-resistant nickel RCA terminations, which are the practical things that matter when you’re routing low-level signal through a vehicle. For customers building clean, reliable systems, this is a straightforward cable to choose because the construction details are clear and aimed at real install conditions.

Premium Sound Quality at Intelligent Value

Octave delivers genuine audiophile-grade construction and rich, engaging sound at a price point that makes premium cable performance accessible to more enthusiasts.

Where some cables pursue clinical neutrality, Octave delivers a warm and rich sound that draws you into the music.

REAL CAR AUDIO

Backed by People Who Live it

Pure Signal. Uncompromised Sound.

Harmonic Harmony cables are the result of an unwavering commitment to detail, craftsmanship, and pure musical expression. Engineered for audio systems where every nuance matters, the range is built upon a foundation of ultra-pure OCC copper, multi-layered shielding, and precisely engineered geometries that preserve the full integrity of the source signal, without coloration or compromise.

With performance proven in international sound quality competitions, Harmonic Harmony products are favoured by system designers and competitors who demand transparency, tonal richness, and imaging accuracy. Every cable is meticulously hand-assembled, tested, and tuned to elevate the emotional connection between you and your music.

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