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Th e M ix e r
As one would expect, the main purpose of the mixer is to
combine sounds, but under precise and smooth control. This
is why long-throw faders are essential on any professional
product. The faders provide you with clear and instinctive
control of the final sound balance and like an artist playing an
instrument you should listen to the effect of your fader
movements, not look at your hands.
You r SPIRIT LIVE 4 mixer accepts a wide range of input
signals via a microphone input, for very low level signals, or a
line input, for higher level signals from, for instance, tape
machines, effects processors, etc.
The mixer is split into two sections. The Inputs receive, match
and process individual source signals, and distribute them at
precise mix levels to either a stereo Mix output or to one of
the Groups. The Master section allows overall level control
of all outputs, and provides monitoring of the audio signal at
many points in the mixer, either on headphones or meters.
The Equaliser controls are the most flexible and potentially
destructive feature of the mixer. They have a similar effect on
the frequency response of the input channel as the tone
controls on a hi-fi system, but with much greater precision,
and allow particular characteristics of the input signal to be
emphasised or reduced. It is very important that you become
familiar with the effect each control has on the sound and this
is best achieved by spending time listening to the effect of each
control on a well-known track played through the mixer.
The Auxiliary Sends provide a way of routing the input
signals to a number of secondary outputs, for artists foldback,
echo units or additional speaker outputs.
The Pan control adjusts the position of the input signal within
the stereo mix, and can be swept from full left, through to full
right. This allows particular artists to retain their correct
spatial position within the mix, and can be valuable for live
effects.
Pre-Fade-Listen(PFL) allows you to monitor the signal at
many points in the mixer. Pressing any PFL switch places the
signal at that particular point onto the headphones and the
right meter, to check the quality of the signal or to pin-point
problems. Using PFL will not affect the signals on the outputs
from the desk.
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