SoundCraft SPIRIT LIVE 42, User Manual

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Page 12
10 FADER
This 100mm long-throw fader determines the proportion of the channel in the mix
and provides a clear visual indication of channel level. Normal operating position is at the
`0’ mark, providing 10dB of gain above that point if required.
11 MUTING
All post-fade outputs from the channel may be muted by pressing the MUTE switch,
and the associated LED illuminates to show that the channel is OFF.
Alternatively the channel may be selected to any one or more MUTE BUSES to pro-
vide grouped muting under the control of the MUTE masters on the far right-hand side
of the console. In either case the mute status is shown by the LED.
12 PFL/PEAK
When the PFL switch is pressed, the Pre-Fade signal is fed to the headphones and L
& R meters, where it replaces the normal Mix L/R signal. The PFL/AFL ON LED on the
master section illuminates to warn that the headphones and the meters are now
responding to the PFL/AFL selection and the PFL LED on the input channel lights to
identify the active channel. This is a useful way of listening to any required input signal
without interrupting the main mix, for making adjustments or tracing problems.
When the PFL switch is released the LED on the channel serves as a PEAK indicator,
to warn when an excessively high signal level is present in the channel. The signal is
sampled at three points in the channel, immediately after the Hi-Pass Filter (Pre Insert),
post Mid EQ and pre HF EQ, and POST EQ. The Peak LED will illuminate approximate-
ly 4dB before clipping and therefore give warning of a possible overload even if the peaks
are removed by external equipment plugged into the Insert.
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