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4. INSERT (FOR MONO CHANNELS)
Use the insert jacks to send the channel
signal through a compressor, graphic equalizer,
or similar device.
With nothing plugged into this jack, the
channel's signal goes straight through the mic/
line preamp and channel strip. With an exter-
nal effects device plugged into this jack, the
channel's signal leaves the mixer, goes through
the effects device and back into the channel
strip (see insert plug diagram below).
The insert send signal is not affected by
the channel EQ or fader, thereby preserving
the original signal's characteristics. Only the
GAIN (16) control has any effect on the insert
send level.
Specialty cables, developed just for these
insert jacks, are widely available. They allow
a signal to leave and enter the mixer on the
same TRS plug. They are wired thuswise:
Tip = Send (to effects device input)
Ring = Return (from effects device output)
Sleeve = Common ground (connect shield
to all three sleeves)
ring
(TRS plug)
tip
sleeve
This plug connects to one of the
mixer's Channel Insert jacks.
Besides being used for inserting effects de-
vices, these jacks can also be used as channel
direct outputs; post-GAIN (16), pre-LOW CUT
(18) and pre-EQ (19, 20).
Here are three ways to use the jacks:
MONO PLUG
Direct out with no signal interruption to master.
Insert only to first "click"
MONO PLUG
Direct out with signal interruption to master.
Insert all the way in to the second "click"
STEREO
PLUG
For use as an effects loop.
(TIP = SEND to effect, RING = RETURN from effects)
EFFECTS: SERIAL OR PARALLEL?
sor/limiters, graphic equalizers. Connections are
typically made via the channel INSERT jacks.
is tapped off to the effects device, processed,
and returned, to be mixed with the original
"dry" signals. Multiple signals (via multiple
mixer channels) can all make use of the same
parallel effects device. Examples include:
reverb, delay, chorus. Connections are typically
made via AUX sends and AUX returns.
Serial Device
Parallel Device
SEND to processor
"tip"
"ring"
RETURN from processor
Channel Insert jack
Channel Insert jack
Channel Insert jack
Effects devices are used
either in serial or in parallel:
Serial means that the en-
tire signal is routed through
the effects device. Examples
include: preamps, compres-
Parallel means that a portion of the signal
Insert
Send
Signal Processor
(e.g., Compressor)
Dry Signal
Aux
Send
Signal Processor
(e.g., Reverb)
Channel Path
Dry Signal(s)
Insert
Return
Aux
Output
Return
Section
Wet Signal
Mix
Stage
Dry Signal(s)
9
Processed
Signal
Processed
Signal
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