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5.3. Background noise
The use of active circuitry can yield, depending on the configuration, to a significant noise
level. The SMAC series mixers have 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 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 front panel should not be cleaned with dissolvent or abrasive substances because silk-
printing could be damaged. To clean it, use a soft cloth slightly wet with water and neutral liquid soap;
dry it with a clean cloth. Be careful that water never gets into the unit through the holes of the front
panel.
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