Supra Lorad 2.5 IEC Fr 1.5m

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 thanks to a patented helical construction and shielding that combines carbon and semi-conductive nylon. This design reduces both electric 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 goes far beyond that of conventional power cables. Its three 2.5 mm² tinned OFC (Oxygen Free Copper) conductors are arranged with a short, precise twist pitch. This specific geometry creates 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 hallmark of this MK2 generation. Unlike traditional metallic shields, this semi-conductive material offers superior protection against radio frequency interference while maintaining remarkable flexibility. An ultra-flexible 66-strand drain wire connects the shield along its entire length, efficiently channeling captured interference to ground without risking damage to the main conductor insulation.

The high-durability glacier blue PVC outer jacket protects the assembly while making the cable easy to identify in an installation. This distinctive color, now emblematic of the Swedish brand, reflects Supra’s Nordic philosophy: a discreet appearance that conceals high-level technical performance.

LoRad Technology: Beyond Simple Shielding

The acronym LoRad (Low Radiation) stands for much more than just a shielded cable. This patented technology is based on two complementary physical principles. On one hand, the semi-conductive shield forms a barrier against alternating electric fields radiated by the cable itself. On the other, the tightly wound 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 polluting its environment electromagnetically while also protecting it from external interference. Modern sources of interference—Wi-Fi networks, mobile phones, dimmers, switching power supplies—generate a wide 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 effectiveness of the shielding across a wide frequency range. This rigorous certification sets the Lorad apart from the many uncertified “audiophile” cables on the market.

Real-World Applications and Measurable Benefits

In a high-fidelity system, the Lorad 2.5 delivers audible improvements from the very first moments of listening. The lowered noise floor reveals micro-details that were previously masked. Transients become more precise, especially in the bass range, where articulation is 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 devices coexist, reducing electromagnetic interference is crucial to maintaining audio signal quality. Analog interconnect cables, which are especially sensitive to interference, directly benefit from the proximity of a low-radiation power cable.

Beyond audio, medical and scientific applications also take advantage of the Lorad’s properties. Laboratories equipped with sensitive measuring instruments observe improved accuracy and stability in their readings. 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 the LoRad shielding is entirely dependent on proper grounding. The cable must be plugged into a wall outlet with a functional ground so that the drain wire can channel captured interference away. An installation without grounding would negate the benefits of the shielding and could even create dangerous situations.

24-carat gold-plated connectors ensure optimal conductivity and long-term resistance to corrosion. The straight Schuko connector (SW-EU) and IEC-320 C13 plug (SWF-10) are precisely machined to ensure perfect electrical contact. This level of finish, inherited from Swedish military standards, contributes to the product’s exceptional reliability.

Despite its complex construction, the cable’s flexibility makes it easy to integrate into various setups. Unlike some power cables that are as rigid as crowbars, the Lorad remains supple, allowing it to be routed without excessive constraint behind equipment.

Technical Specifications

Technologies and Protection

• LoRad Technology: reduces electric 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/semiconductive nylon shielding
• Outer sheath: high-durability PVC
• Color: glacier blue (other colors available 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 theater systems
• Recording studios and noise-sensitive installations
• Medical laboratories and technical equipment
• Electrosmog-sensitive environments (EHS)

Installation and Use

• Always connect the Supra LoRad to a properly grounded wall socket
• Avoid any unsecured grounding, as it may pose a safety hazard
• Healthier environment thanks to reduced exposure to electromagnetic fields