Supra LORAD 2.5 CS-16-EU 1.5m
Overview
The LoRad 2.5 CS-16-EU, developed by Jenving Technology in Sweden, is a 16 A mains power cable designed to reduce electromagnetic interference. It uses a patented active interference suppression technology employed by institutions such as the Swedish National Forensic Laboratory (SKL), the Swedish Air Force for the JAS project, European air traffic control towers, and several Scandinavian hospitals.
LoRad technology: Where physics meets acoustic engineering
The LoRad 2.5 CS-16-EU deploys a particularly sophisticated electromagnetic protection architecture. At the heart of the cable, three 2.5 mm² tinned OFC (Oxygen-Free Copper) conductors form the main conductive backbone. This generous cross-section allows a continuous current of 16 amperes—rarely reached in domestic audio—ensuring instant power reserves for the most demanding amplifiers.
The hallmark of the LoRad design lies in its short-pitch construction. The conductors are twisted at a precise, tight angle, creating a geometry that naturally cancels the alternating magnetic fields generated by current flow. Borrowed from professional transmission cables, this technique turns each twist into a micro-loop of magnetic cancellation.
The carbon/nylon semiconductive shield is the major innovation of this MkII version. Unlike traditional metallic shields that can create parasitic capacitive effects, this composite braid acts as an absorber of electromagnetic waves. Carbon, naturally semiconductive, dissipates radio-frequency interference without creating internal reflections, while nylon adds flexibility and mechanical strength. This unique material has successfully passed the standardized bend test of 2 × 30,000 flex cycles required for European certification HD21.5 S3.
Technical evolution versus the first generation
The MkII version of the LoRad marks a notable step forward compared to the original model. The former metallic shield with drain wire has given way to the carbon/nylon concept, eliminating a potential weak point: the drain wire which, under repeated bending, could damage internal insulators. This new architecture gives the cable increased flexibility despite its 11 mm diameter, making it easier to integrate into constrained installation setups.
Mechanical fatigue resistance has been significantly improved. Laboratory tests show a 40% longer lifespan under torsion and bending cycles compared to the previous generation. This robustness partly explains why critical environments such as operating rooms or recording studios have widely adopted this technology.
Professional and domestic applications
The impact of the LoRad 2.5 CS-16-EU on an audio-video system manifests through several measurable improvements. The noise floor reduction can reach several decibels, revealing micro-details previously masked by the ambient electromagnetic veil. Transients gain precision, offering a crisper attack on percussion and better definition of instrumental edges.
In video, interference suppression results in a more stable image, free of flicker artifacts often imperceptible consciously yet fatiguing for the visual system. Blacks appear deeper, contrasts better defined, particularly on high-resolution projectors sensitive to power fluctuations.
Professional and medical environments
The use of LoRad in medical environments is no anecdote. Medical imaging equipment, particularly sensitive to electromagnetic disturbances, benefits from this technology to maintain measurement accuracy. In research laboratories, where measuring instruments detect signals on the order of microvolts, the absence of stray radiation becomes crucial to the validity of experiments.
Electrosensitive individuals (EHS) find in LoRad a concrete solution to reduce exposure to domestic electromagnetic fields. Measurements taken in an anechoic chamber show an 85% reduction in electromagnetic emissions in the 50 Hz–10 MHz band compared to a standard mains cable.
Premium connectors and finishes
The SW-EU Schuko and SWF-16 (C19 IEC-320) connectors feature 24-karat gold plating with an optimized thickness to ensure maximum conductivity and corrosion resistance. This surface treatment, applied by electrolytic bath under controlled atmosphere, ensures a contact resistance below 0.5 milliohm even after 10,000 insertion cycles.
The straight Schuko plug integrates progressive-pressure contact blades, maintaining a constant clamping force of 15 newtons throughout the product’s lifetime. The C19 connector, intended for high-power equipment, has oversized contacts capable of handling current peaks up to 20 amperes for 10 seconds.
Technical Specifications
Electrical Specifications
- Rated voltage: 250 V
- Maximum current: 16 A continuous
- Maximum power: 4000 W
- LoRad technology: active suppression of electric and magnetic fields
Construction and Materials
- Conductors: 3 × 2.5 mm² (AWG 13), tinned OFC copper
- Construction: short-pitch twist for interference reduction
- Advanced shielding: carbon/semiconductive nylon tape against RF interference
- Flexibility: medium
Connectors
- Input connector: Straight 16 A gold-plated Schuko (SW-EU)
- Output connector: C19 IEC-320 (SWF-16)
- Contacts: gold-plated for optimal conductivity
Standards and Certifications
- Certification: Intertek Sweden
- Compliance: HD21.5 S3
- Safety: must be used with a properly grounded wall outlet
- Manufacturing: Swedish, professional standards
Recommended Applications
- High-end hi-fi and home theater systems
- Recording studios and professional stages
- Medical installations and research laboratories
- Environments sensitive to electromagnetic fields (EHS)
- Equipment used by laboratories, the military, hospitals, and control towers
What’s in the Box
- 1 Supra LoRad 2.5 CS-16-EU cable (length of your choice)
Product Highlights
- Significant reduction of electromagnetic noise
- Stable and safe power supply for demanding devices
- Improved audio and video quality: increased dynamics, reduced noise, optimal stability
- Swedish-made durability and precision
- Recognized and used by professionals worldwide
- Proven technology in critical environments
Frequently Asked Questions
Does the LoRad 2.5 CS-16-EU require a break-in period?
While the cable is fully functional from first use, the dielectric materials stabilize progressively during the first 50 hours of operation. This period allows the insulating polymers to reach their optimal electrical equilibrium. Some users report a slight improvement in sonic transparency after this phase, particularly in the treble where parasitic micro-capacitances are most audible.
Can this 16 A cable be used with devices that draw less current?
Absolutely. The 16 A rating is the cable’s maximum capacity, not a minimum requirement. A CD player drawing 50 watts will benefit just as much as a 1000-watt amplifier from the LoRad’s low impedance and electromagnetic shielding. The generous conductor cross-section guarantees negligible voltage drop even during transient current demands.
How should the cable be oriented with respect to mains phase?
Supra recommends connecting all components in a system with consistent phase. A phase tester (such as the Supra Phase Detector) helps identify the optimal Schuko orientation. This phase coherence reduces circulating currents in the grounds and minimizes the potential for hum. In a correctly phased installation, background noise reduction can reach an additional 6 dB.
What is the difference between the 1.5 m and 2 m versions for the same setup?
The optimal length depends on your layout. A cable that is too short will create harmful mechanical stress, while excessive length slightly increases series resistance and interference pickup area. For power below 500 W, the electrical difference between 1.5 m and 2 m remains negligible (less than 0.01 ohm). Choose the length that offers the most direct path without mechanical tension.
Does the shielding work without a ground connection?
No. The carbon/nylon shield requires a proper earth connection to drain captured electrostatic charges. Without ground, the shield becomes floating and may even act as an antenna, worsening interference. In ungrounded installations (not recommended), a standard unshielded cable will paradoxically be less problematic than a poorly connected LoRad.
Is this cable suitable for digital equipment (servers, NAS, switches)?
An excellent application. The switching power supplies of IT equipment generate high-frequency harmonics that are particularly polluting. The LoRad’s carbon/nylon shield excels at absorbing these interferences (30 kHz–1 MHz). In addition, the cable’s low resistance maintains stable voltage despite the abrupt consumption variations typical of modern processors.
Why the glacier blue color instead of traditional black?
Beyond visual identity, Supra’s glacier blue PVC incorporates specific UV inhibitors that prevent premature hardening of the jacket. Accelerated aging tests show 60% better preservation of flexibility after the equivalent of 20 years of use compared to standard black PVCs. This exclusive formulation contributes to the product’s exceptional longevity.
Are custom lengths assembled at the factory or by resellers?
All versions of the LoRad 2.5 CS-16-EU, including custom lengths, are assembled at Jenving’s factory in Ljungskile. Technicians, certified to military soldering standards MIL-STD-2000, use temperature-controlled soldering stations and halogen-free flux. Centralized production ensures consistent quality regardless of the final point of sale.
- Eco-contribution included in the sale price.
- Manufacturer reference: 3004100354
- GTIN / EAN: 7330060202513