Considerations; Ground Loops; Audio Connections; Noise - Ecler SCLAT100 Manual De Instrucciones

5. CONSIDERATIONS

5.1. Ground loops

Ensure at all times that no signal sources reaching the mixing desk and no devices connected
to its output have their earths interconnected; that is, earth should never reach them via two or more
different paths, as this could lead to humming which could even interfere with sound reproduction
quality. In order to avoid earth loops, ensure that the shielding of cables, if connected to the chassis,
are never connected with each other.

5.2. Audio connections

As a general rule of thumb, make the signal connections as short as possible and use the best
connectors and cable available. Cables and connectors are frequently held cheap, forgetting that a
bad connection can result in a poor sound quality. Use low capacity cables

5.3. Noise

The use of active circuitry can yield, depending on the configuration, to a significant noise
level. The SCLAT100 mixer has been designed for the minimum possible noise. Anyway, the noise
level will always depend on the correct use and installation of the mixer.
It is not the same setting up the FADER at "2" and the MASTER at "10" that the other way
round; FADER at "10" and MASTER at "2". In the first case you get a poor signal to noise ratio that
will be fully amplified by the master while on the second case we have a good signal to noise ratio
only amplified by "2". As a result, the background noise is greater in the first case than in the second
one.

5.4. Cleaning

The control panel must not be cleaned with any dissolvent, abrasive or petroleum derivated
substance else paint and silk-printing of the modules could be damaged.
Whenever cleaning should be necessary, use a soft cloth slightly wet with water and neutral
liquid soap or with a solution of water and alcohol at 50%. Be careful that no liquid gets into the mixer.
Never use sharp or erosive objects to scratch the control panel.
Should any liquid get into the mixer, do not use any cleaning sprays; send the unit to the
nearest ECLER Technical Service.
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