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STEREO INPUT CHANNEL
Each stereo input channel comprises two pairs of inputs per channel strip:
1 INPUTS 13/14 & 17/18
These inputs are unbalanced on RCA phono connectors, and are intended for use
with CD players, DAT machines or Hi-Fi equipment. Alternatively they may be used as
simple effects returns or stereo instrument inputs.
2 LEVEL
The LEVEL control sets the level of the channel signal.
3 MIX/SUB
The MIX/SUB switch allows the signal to be routed to either the main MIX (switch
up) or SUB mix (switch down).
4 INPUTS 15/16 & 19/20
These inputs accept 3-pole `A gauge (TRS) jacks. Use these inputs for sources such
as keyboards, drum machines, synths, tape machines or processing units. The inputs are
BALANCED for low noise and top quality from professional equipment, but you can use
UNBALANCED sources by wiring up the jacks as shown in the Wiring it Up section
earlier in this manual, although you should then keep cable lengths as short as possible.
Mono sources may be used by plugging into the left jack only.
5 GAIN
The GAIN control sets the input level to the channel, allowing matching to a wide
range of line level sources.
6 EQUALISER
HF EQ
Turn to the right to boost high (treble) 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. Set the knob in the centre-detented
position when not required. The control has a shelving response giving 15dB of boost or
cut at 12kHz.
LF EQ
Turn to the right to boost low (bass) frequencies, adding extra punch to synths, gui-
tars and drums. Turn to the left to reduce hum, boominess or improve a mushy sound.
Set the knob to the centre-detented position when not required. The control has a
shelving response giving 15dB of boost or cut at 60Hz.
7 AUX SENDS
These are used to set up a separate mixes for FOLDBACK, EFFECTS or recording,
and the combination of each the Aux Send is mixed to the respective Aux Output at the
rear of the mixer. For Effects it is useful for the signal to fade up and down with the
fader (this is called POST-FADE), but for Foldback or Monitor feeds it is important for
the send to be independent of the fader (this is called PRE-FADE).
AUX SEND 1
This is always PRE-FADE and therefore most appropriate for foldback or monitor
mixes.
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