Supra Lorad 2.5 IEC Fr 1m

The Lorad 2.5 IEC Fr is a power cable designed by Supra Cables after more than five years of development. Manufactured in Sweden, it aims to limit electromagnetic interference through a patented helical construction and shielding combining carbon and semiconductor nylon. This design reduces electrical and magnetic emissions. The cable is used in technical environments such as hospitals, air traffic control towers, and recording studios.

Sophisticated construction for maximum protection

The Lorad 2.5 features a complex architecture that far exceeds that of conventional mains cables. Its three 2.5 mm² conductors made of tinned OFC (Oxygen Free Copper) are arranged in a short, precise twist pitch. This particular geometry generates mutual cancellation of alternating magnetic fields, a physical phenomenon that drastically reduces the cable’s electromagnetic radiation.

The innovative carbon/nylon shielding is the technical signature of this MK2 generation. Unlike traditional metallic shielding, this semiconductor material offers superior protection against radio frequency interference while maintaining remarkable flexibility. An ultra-flexible 66-strand drain wire connects the shielding along its entire length, effectively evacuating captured interference to ground without risking damage to the main conductor insulation.

The glacier blue high-durability PVC outer sheath protects the assembly while facilitating cable identification in an installation. This characteristic shade, which has become emblematic of the Swedish brand, reflects Supra’s Nordic philosophy: a sober appearance that conceals high-level technical performance.

LoRad technology: beyond simple shielding

The acronym LoRad (Low Radiation) designates much more than a simple shielded cable. This patented technology is based on two complementary physical principles. On one hand, the semiconductor shielding forms a barrier against alternating electric fields radiated by the cable itself. On the other hand, the tight helical twist of the conductors creates a geometry where magnetic fields cancel each other out, reducing their propagation into the environment.

This dual protection works bidirectionally: it prevents the cable from electromagnetically polluting its environment while protecting it from external interference. Modern interference sources—Wi-Fi networks, mobile phones, light dimmers, switching power supplies—generate a broad spectrum of parasitic frequencies that the Lorad effectively neutralizes.

Tests conducted by Intertek Sweden have validated not only compliance with European safety standards HD21.5 S3, but also the shielding effectiveness across a wide frequency band. This rigorous certification distinguishes the Lorad from the many non-certified “audiophile” cables present on the market.

Practical applications and measurable benefits

In a high-fidelity system, the Lorad 2.5 delivers audible improvements from the first moments of listening. The reduction in the noise floor reveals micro-details previously masked. Transients gain precision, particularly in the bass register where articulation becomes firmer and more defined. The stereo image widens and gains depth, creating a more coherent and natural soundstage.

Recording studios particularly appreciate the Lorad’s ability to preserve the integrity of low-level signals. In these environments where numerous electrical equipment coexist, reducing electromagnetic interference becomes crucial for maintaining audio signal quality. Analog interconnect cables, particularly sensitive to interference, directly benefit from the proximity of a low-radiation mains cable.

Beyond the audio domain, medical and scientific applications take advantage of the Lorad’s properties. Laboratories equipped with sensitive measuring instruments observe improved measurement precision and stability. People suffering from electromagnetic hypersensitivity (EHS) find in this technology a solution to reduce their exposure to alternating electric and magnetic fields.

Installation and practical considerations

The effectiveness of LoRad shielding depends imperatively on a correct ground connection. The cable must be plugged into a wall outlet equipped with a functional ground so that the drain wire can evacuate captured interference. An installation without grounding would cancel the shielding benefits and could even create dangerous situations.

The 24-karat gold-plated connectors guarantee optimal conductivity and long-term corrosion resistance. The straight Schuko connector (SW-EU) and the IEC-320 C13 socket (SWF-10) are precision-machined to ensure perfect electrical contact. This finishing quality, inherited from Swedish military standards, contributes to the product’s exceptional reliability.

The cable’s flexibility, despite its complex construction, facilitates its integration into various configurations. Unlike some rigid mains cables that are stiff as crowbars, the Lorad maintains suppleness that allows routing without excessive constraint behind equipment.

Technical specifications

Technologies and protection

• LoRad technology: reduces electrical and magnetic radiation
• High-efficiency shielding: protection against RF interference and radiated mains noise
• Short-pitch twisted cable: cancels magnetic fields and reduces induced noise

Materials and construction

• Tinned OFC copper conductors: oxygen-free copper, low signal loss
• 24-carat gold-plated connectors: optimal conductivity and corrosion resistance
• Construction: carbon / semi-conductive nylon shielding
• Outer jacket: high-durability PVC
• Colour: glacier blue (other colours on request)

Electrical specifications

• Rated voltage / current: 250 V / 10 A
• Conductor cross-section: 3 x 2.5 mm² (AWG 13)
• Connectors: straight Schuko (SW-EU) to IEC-320 C13 (SWF-10)

Recommended applications

• High-fidelity and home cinema systems
• Recording studios and noise-sensitive installations
• Medical laboratories and technical equipment
• Areas sensitive to electrosmog (EHS)

Installation and use

• Always connect the Supra LoRad to a properly earthed wall socket
• Avoid any unsafe grounding, a potential source of danger
• Healthier environment thanks to reduced exposure to electromagnetic fields