OPERATION
Input Selection
You must ensure that the correct input connector, mic or line, is being used from the
required source. You can select the type of input by pressing the 'LINE' switch at the
top right of each channel strip in or out. In the "up' position the mic input is selected;
depressing the 'LINE' switch selects the line input as the source. Note that you can
have mic and line inputs connected at the same time but will only be able to select a
single input at a time.
Input Gain Control
The gain control should be set to obtain the best signal to noise ratio, whilst preserving
adequate headroom. Any changes in gain level should be gradual to avoid sudden
overload or severe distortion. Extra care should be taken with higher level inputs, and
high gain settings should be used sparingly to avoid an increase in the noise floor and
the introduction of distortion.
Line Input
A typical line input will require less gain than a microphone signal as it is a 'hotter'
source. You should have the gain set to a minimum when connecting a line input, then
gradually increase it to achieve the required level.
Microphone Input
CAUTION: Operation of the phantom power switch, or plugging a microphone in
with the phantom power applied, may cause an audible click or thump in your
loudspeakers. To avoid this happening, ensure that the channel fader and stereo
master faders are set to a minimum before operating the switch or plugging in a
microphone. Switching between mic and line with high input gain settings may also
cause an audible thump if the level control is not turned down.
13
To Next Page
Loading...
