Background Noise; Cleaning - Ecler HAK320 Notice D'utilisation

5.3. Background noise

The use of active circuitry can yield, depending on the configuration, to a significant noise
level. The HAK 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 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 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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