GigaWatt IEC320-C7
Overview
The IEC320-C7 adapter from GigaWatt allows you to connect a power cable fitted with a three-pole C13 connector to a device equipped with a C7 inlet. It is designed to let you use mains cables of various quality levels with audio-video equipment originally supplied with standard cords. Manufactured in Poland by GigaWatt, the adapter features de-magnetized, cryogenically treated brass contacts.
Anatomy of an adapter: materials and treatments
The IEC320-C7 housing combines PVC and nylon, forming a compact enclosure measuring 65 × 29 × 25 mm and weighing only 70 grams. This light weight keeps the adapter discreet behind devices without putting excessive strain on the equipment’s female socket.
The internal contacts are made of brass, an alloy chosen for its conductivity and resistance to corrosion. GigaWatt subjects these parts to two successive treatments:
- Demagnetization: removing any residual magnetic charge in the metal is intended to reduce interference that could affect the audio or video signal.
- Cryogenic treatment: controlled cooling to very low temperatures (generally below -150 °C) alters the metal’s crystalline structure. This process, used for decades in industry and aeronautics, tightens the molecular lattice and can improve electrical conductivity.
These treatments are applied to all connectors in the GigaWatt range, from simple adapters to the most advanced power conditioners.
From C7 to C13: understanding the conversion
The C7 (plug) fits into a C8 inlet (socket on the device). Its characteristic “8” shape has earned it the nickname “figure eight,” and sometimes “shotgun,” due to its resemblance to the muzzle of a shotgun barrel. Lacking a ground pin, it is used on double-insulated devices: disc players, televisions, laptop power supplies, game consoles.
The C13, more common in IT and professional audio, has a third pin providing grounding. High-quality mains cables intended for hi-fi systems almost always use this connector, which explains the usefulness of an adapter that allows them to be used with C7 equipment.
Compatible devices and use cases
The adapter is intended for owners of audio-video equipment fitted with a C8 inlet who wish to replace the original power cable with a higher-quality cord. Typical devices include:
- DVD and Blu-ray players
- LCD, OLED, and plasma televisions
- Projectors
- Laptop power supplies
- Video game consoles
- Headphone amplifiers and compact DACs
Using a shielded, properly sized cable can help reduce electromagnetic interference carried by the household power grid. The audible or visible improvement depends on many factors: cable quality, the sensitivity of the powered device, and the level of electrical pollution in the installation.
Technical specifications
Electrical specifications
- Rated voltage: 250 V
- Frequency: 50–60 Hz
- Maximum continuous load: 2.5 A at 250 V, 10 A at 125 V
Physical characteristics
- Dimensions: 65 × 29 × 25 mm
- Weight: 0.07 kg
- Materials: PVC and nylon housing, demagnetized brass connectors
Compatibility and applications
- Compatibility: converts C13 power cables for devices equipped with C7 sockets
- Recommended applications: DVD/Blu-ray players, LCD/plasma televisions, video projectors, laptop power supplies, audio-video equipment
Benefits and performance
- Reduced power loss
- Improved current flow
- Optimized audio and video performance
Frequently Asked Questions
Does the adapter add a ground connection to a device that doesn’t have one?
No. The C7 connector has only two pins (live and neutral). Even if the C13 cable used includes a ground conductor, it remains unused through the adapter. The device retains its original insulation class (generally Class II, double insulation).
Can a C15 cable be used instead of a C13 cable?
Yes. The C15 connector, designed for high-temperature appliances such as kettles, has a slightly different shape (an extra notch) but fits easily into the IEC320-C7 adapter. The reverse is not true: a C13 will not fit into a C16 inlet.
How does it differ from a generic off-the-shelf adapter?
Standard adapters generally use steel or untreated brass contacts without any special processing. GigaWatt’s IEC320-C7 stands out thanks to the demagnetization and cryogenic treatment of its brass contacts, processes intended to optimize conductivity and reduce interference.
Is the adapter suitable for a power amplifier?
Home hi-fi amplifiers rarely exceed the 625 W limit supported by the adapter. However, most amplifiers already use a C13 or C19 connector and therefore do not need this accessory. The IEC320-C7 is primarily aimed at sources (players, DACs) and displays.
Does the adapter work with the switching power supplies in modern televisions?
Yes. Modern televisions use switching power supplies that operate over a wide voltage range from 100 to 240 V. The adapter does not affect voltage conversion and simply carries current from the C13 cable to the device’s C8 inlet.
- Eco-contribution included in the sale price.