Supra Cables LoRad Power Strip MK III  

• Aluminum housing 100% shielded
• Gold-plated grounded sockets
• Internal wiring LoRad 3 x 2.5 mm²
• Supra NIF filter interference filter
• Multi-way surge protection
• Connection via IEC-320 cold device connector
• 10 amp ceramic fuse
• On/Off switch

Supra power distribution block, consisting of EU sockets that comply with European standards, except for the UK, Ireland, Belgium, and Italy. The input connector is a 10-amp built-in plug according to the international IEC-320 standard, i.e., the same for most electrical multimedia devices with detachable power cords including grounding cables. It features a 10-amp fuse and non-intrusive filtering (NIF) as well as triple surge protection.

Requires an optional input power cable, see our section on power cable sets.

The device also has a high-current On/Off switch that can turn the entire unit on or off. Convenient when no power consumption is desired. Note that the switch does not provide protection against surges, e.g., from lightning strikes. See power block models with SP; surge protection. Also note that some devices may lose their memory if operated without power connection. They often need to remain in standby mode and must not be completely switched off. For more information, please refer to the device’s user manual.

SUPRA NIF Inrush Filter

All models are equipped with Supra NIF (Non-Intrusive Filtering), an efficient high-frequency (RFI) transient filter. It was designed and configured to efficiently suppress RFI interference but not to dampen fast charging demands from the power supplies of connected devices. Supra NIF was developed by Ben Duncan Research in England.

3-Way Surge Protection

The SP models are all equipped with Supra surge protection, which protects all three paths, i.e., voltage to earth, neutral to earth, and voltage to neutral. Manufacturers of standard surge protection devices believe it is sufficient to provide protection only between voltage and neutral and that they do not protect against surges in the field caused by direct lightning strikes. The only way to better protect your devices than Supra SP is to completely disconnect the mains power supply, connection lines, and communication with neighboring devices. Unfortunately, thunderstorms do not follow a schedule; next time you might be at work...

All filters and protection devices require a grounded power outlet to function. If your multimedia and hi-fi devices comply with a certain standard, they probably require a grounding connection themselves and use an IEC-320 socket for detachable power cords. If your devices are like this and you do not have a grounding terminal in your wall socket, we recommend contacting your landlord and/or an electrician to arrange a grounding connection. This will undoubtedly improve both sound quality and safety for your devices.

Supra LoRad Shielded Power Blocks in Aluminum Housing

The Supra power blocks are shielded and emit only small amounts of electrically generated fields thanks to their aluminum housing, which is connected to earth potential. The conductive chassis directs internal interference to earth and prevents adjacent RFI and other harmful fields from entering the power block. The power block must be connected to a grounded wall socket with a grounded power cable to function properly. The power cable connecting the power block to the wall socket and the power cables to the individual devices should also be shielded for maximum interference suppression/immunity. We recommend our Supra LoRad Mains Flex as the best alternative to combine with our power block. If you are new to the field of power line shielding and filtering, you will undoubtedly notice the difference.

The stray field of the standard power cable supplied with most multimedia devices is clearly detectable with our Supra AC detector; http://www.jenving.com/products/view/ac-sensor-110-230v-1071100026 Simply touch the supplied power cable with the white tip of the AC detector, and you will hear a warning and see the tip quickly flash red to indicate radiated fields from the mains power. Now switch to a Supra LoRad power cable and touch the cable with the tip... This field is contagious and will add a 50 - 60 Hertz superimposed signal to all nearby connection lines. Imagine what such a power cable can do to a subwoofer connection; the subwoofer plays a constant tone of the mains frequency superimposed on the music or film signal. Efficient shielding is one of Supra’s most important design features. You have earned the right to hear only the music!

Dangerous!

We repeatedly hear of creative alternative ways to arrange a grounding connection when the wall socket does not provide one. We would like to highlight one of these as particularly dangerous and hope this explanation does not serve as another creative option. Occasionally, water heating radiators have been connected to hi-fi equipment cabinets or to a power distribution protective contact plate.