Operation Manual

USER GUIDE
19
STEREO INPUT CHANNELS
Each stereo input channel comprises two pairs of inputs per channel strip:
1 INPUTS STE-1/2/3/4
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.
2 GAIN
The GAIN control sets the level of the channel signal.
3 RETURNS RET-1/2/3/4
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.
4 GAIN
The GAIN control sets the input level to the channel, allowing matching to a wide range of line level sources.
5 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, guitars 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.
6 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 SENDS 1 AND 2
These are always PRE-FADE and therefore most appropriate for foldback or monitor mixes or external
submix.
AUX SEND 3 AND 4
These are always POST-FADE for effects sends, external submix (or for centre Voice cluster or mono Tape
mix.
7
BALANCE
This control sets the amount of the channel signal feeding the Left and Right MIX or SUB buses, allowing
you to balance the source in the stereo image. When the control is turned fully right or left you feed only
that side of the signal to the mix. Unity gain is provided by the control in the centre-detented position.
8 MUTE
All outputs from the channel are enabled when the MUTE switch is released and muted when the switch is
down.