Essential audio tools Sound Saver
Mains socket tester indicating live phase, absence of earth, or reversed phase, to check a power supply before connecting an audio installation.
Description
The Sound Saver from Essential Audio Tools is a testing accessory designed to check the condition of a mains socket before connecting an audio or video system. It takes the form of a small unit that plugs directly into a wall socket.
The device indicates three possible states: presence of live phase, absence of earth, or reversed phase. This information helps identify a wiring fault that could affect the operation or safety of an audio installation, phase generally being marked on the mains cables of hi-fi and video equipment.
With a diameter of 39.5 mm and a length of 65 mm excluding pins, and a weight of 115 g, the Sound Saver remains compact and easy to carry or store with the rest of the equipment.
This tester is aimed at hi-fi enthusiasts concerned about the quality of their power supply, as well as installers who want to quickly check a socket before connecting sensitive equipment. It has its place in an audio toolkit, alongside cables and connection accessories.
Technical specifications
| Dimensions (H × W × D) | 39.5 mm diameter × 65 mm (excluding pins) |
| Weight | 115 g |
What to check before buying used
The plug pins deserve close inspection: slight play, a trace of oxidation or deformation can affect contact with the socket and make the reading unreliable. Test the device on a known electrical installation to check that the indicators light up clearly, the only way to ensure the internal electronics have not drifted over time. A drop can damage the small internal circuit without this being visible from the outside.
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