SoundCraft SPIRIT LIVE 42, Руководство пользователя

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Page 13
STEREO INPUTS
E
ach Stereo Input section comprises two independent pairs of inputs. The Stereo
Input (upper pair of jacks) feeds a full-facility input channel, very similar to the mono
input. The lower pair of jacks are intended for a cassette or CD source, typically to pro-
vide background music before a performance and are fed to the stereo mix only and Aux
1 & 2.
CASS/CD INPUT SECTION
13 GAIN
The GAIN switch provides two input sensitivities. The LO setting (switch released)
should be selected for -10dBV semi-professional equipment such as CD players or cas-
sette, and the HI setting (switch pressed) should be selected for -20dBV Hi-Fi equip-
ment. Start with the LO setting if the source level is unknown.
14 AUXILIARY SENDS
These controls route a mono sum of the input channel signal to Auxiliary busses 1 &
2. These are separate from the main outputs and can therefore provide additional out-
puts for foldback, echo units or extra loudspeaker `fills’.
The sends are derived before the LEVEL TO MIX control (Pre-fade) and are there-
fore not affected by the position of that control. This makes them particularly suitable
for foldback or monitor feeds, which need to be controlled separately from the main
P.A. mix. These sends are not affected by the mute switching.
15 PFL
When the PFL switch is pressed, a mono sum of the pre-fade signal is fed to the head-
phones 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 section 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.
16 LEVEL TO MIX
This control sets the level of the stereo signal to the stereo MIX. The knob should
be left fully anticlockwise when not required.
STEREO INPUT SECTION
17 GAIN
This knob allows you to match the input level to suit a wide variety of professional, semi-
professional and hi-fi sources. Start with a low setting, especially for professional equipment,
and increase it if you cannot reach an adequate signal level with the fader at maximum.
18 EQUALISER
The Equaliser section has HF and LF shelving controls, each with a range switch to
provide two centre frequencies for each control.
Turn the HF knob to the right to boost high (treble) frequencies by up to 15dB at a
choice of 6kHz or 12kHz centre frequencies, adding crispness to percussion from drum
machines, synths and electronic instruments. Turn to the left to cut these frequencies,
reducing hiss or excessive brilliance.
Turn the LF knob to the right to boost low (bass) frequencies by up to 15dB at a
choice of 60Hz or 120Hz centre frequencies, adding extra punch to synths, guitars and
drums. Turn to the left to reduce hum, boominess or improve a mushy sound.
Set both knobs in the centre-detented position when not required.
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