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CARE OF YOUR MIXER
General Precautions Avoid storing or using the mixer in conditions of excessive
heat or cold, or in positions where it is likely to be subject to
vibration, dust or moisture.
Keep the mixer clean using a soft dry brush, and an occa-
sional wipe with a damp cloth or ethyl alcohol. Do not use
any other solvents which may cause damage to paint or plas-
tic parts.
Avoid placing drinks or smoking materials on or near the
mixer. Sticky drinks and cigarette ash are frequent causes of
damage to faders and switches.
Regular care and inspection will be rewarded by a long life
Glossary
balance the relative levels of the left and right channels of a stereo
signal.
clipping the onset of severe distortion in the signal path, usually caused
by the peak signal voltage being limited by the circuit’s
power supply voltage.
dB (decibel) a ratio of two voltages or signal levels, expressed by the
equation dB=20Log
10
(V1/V2). Adding the suffix ’u’ denotes
the ratio is relative to 0.775V RMS.
DI(direct injection) the practice of connecting an electric musical instrument directly t
the input of the mixing console, rather than to an amplifier
and loudspeaker which is covered by a microphone feeding
the console.
equaliser a device that allows the boosting or cutting of selected bands
of frequencies in the signal path.
feedback the ‘howling’ sound caused by bringing a microphone too close
to a loudspeaker driven from its amplified signal.
foldback a feed sent back to the artistes via loudspeakers or headphones
to enable them to monitor the sounds they are producing.
frequency response the variation in gain of a device with frequency.
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