HiDiamond TOP GOLD Speaker 
 
HiDiamond Absolute Reference Speaker Cable with UP-4VRC© Copper, Graphite Shielding, and Carbon Fiber Rhodium Terminations
 
Designed as an absolute reference model, this ultra-premium speaker cable embodies HiDiamond’s most advanced engineering, integrating UP-4VRC© (Ultra Pure Single Crystal Copper) — a highly refined version of the already acclaimed Bronze 4VRC© (SCC 4VRC) conductors. Through enhanced material purity and processing, the UP-SCC 4VRC copper achieves remarkably low values for inductance, capacitance, and resistance, delivering extreme resolution, dynamic precision, and tonal neutrality.
 
The cable also features a graphite composite, acting as a natural internal EMI shield. This addition blocks self-generated electrical noise — the by-product of current flow — ensuring that only the pure musical signal is transmitted, free from contamination or smearing. The result is extraordinary signal cleanliness and dynamic integrity, even in complex or demanding systems.
 
The XLPE (Cross-Linked Polyethylene) insulation used here offers vastly superior dielectric properties — claimed to be 100 times better than standard Teflon. This contributes to a significant reduction in transient distortion and electrical signal barrier width, yielding greater waveform linearity, lower harmonic distortion, and a profound sense of sonic naturalness.
 
Internally, the cable uses an extensive twisted conductor layout with 16 × 2.5 mm² conductors, ensuring extremely balanced signal flow across the full frequency range, with:
 
Powerful, articulate bass extension
Stable midrange with a natural vocal presence
Airy, precise highs that remain refined and non-fatiguing
 
This model is terminated with custom Rhodium-plated banana plugs, housed in NFC-treated carbon fiber, which further improves vibration control and shielding. For those requiring spade terminations, extra-thick Rhodium-plated forks are available upon request.
 
With its scale, precision, and shielding, this is a cable designed for reference-level systems where transparency, authority, and absolute sonic fidelity are demanded.