SoundCraft SPIRIT POWERSTATION, User Manual

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13 INPUT TRIM
The input level to the integral Effects Controller is set by the
INPUT TRIM control, with an associated LED to warn of levels
high enough to cause clipping. The control should where possible
be kept in the centre detent position to minimise noise, and if a
setting over ‘0’ is required this would indicate that the input is not
being driven hard enough from the channel sends.
14 EFFECTS CONTROLS
The controller provides a wide range of echo, reverb and acoustic
treatments to add fullness to the sound, complement room
acoustics or for specific effects.
The upper knob selects a range of room acoustics, with a switch to
chose DARK or BRIGHT settings, or a choice of three echo
treatments. The Effects position (fully clockwise) provides a
choice of reverb effects selected by the lower knob. The best
setting for a particular application will be found by
experimentation and careful listening to the final sound.
The controller may be turned ON or OFF remotely by connecting
a standard guitar foot switch, or similar unit providing an isolated
switch closure, to the rear panel Lexicon Foot Switch jack socket as
shown. The Effect is muted when the switch is closed.
GRAPHIC EQUALISER
15 GRAPHIC EQUALISER
The stereo GRAHIC EQUALISER is normalled to the Main L/R
outputs. Seven frequency bands, with cut or boost of 6dB, allow
very precise control over subtle tonal changes to the PA rig in a
particular room. This is in contrast to the much more dramatic
+/-12 or +/-15dB on some other units where a deceptively small
movement of the faders can result in feedback or similar
unwanted effects.
The graphic equaliser is not intended to be used to null out
ringing. A full 31-band EQ is essential for that purpose.
16 LEFT/RIGHT OUT
Each channel of the Graphic Equaliser may be bypassed by
pressing the LEFT OUT or RIGHT OUT switches. This allows a
direct comparison to made of the treated signal (with EQ) and
untreated signal, to judge the effect of the Graphic EQ settings.
Lexicon Foot Switch
Connections
Switch open
= Effect ON
Switch closed
= Effect OFF
DO NOT apply any
external voltage to
the jack socket
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