Effects Send And Return; Efx Foot Switch; Power Amp In 1 And 2 - Mackie 406M Owner's Manual

EFFECTS SEND and RETURN

The EFFECTS SEND jack is a 1/4" connector
that produces an unbalanced line-level signal.
This signal is fed from the internal EFX bus,
just after the EFX DRIVE LEVEL control.
Use a cable with 1/4" TS plugs to connect the
EFFECTS SEND jack to the input of an external
effects processor. Use a similar cable (or cables)
to return the external effects processor's signal
to the EFFECTS RETURN jack(s).
The mono versions (406M, 408M, 808M)
have one EFFECTS RETURN jack and the stereo
versions (408S, 808S) have two RETURN jacks.
These are 1/4" connectors that accept an un-
balanced line-level signal.
The EFFECTS SEND and RETURN are
normalling jacks, so with nothing plugged into
the SEND or RETURN jacks, the internal ef-
fects signal from the EMAC is routed to the
EFX TO MON and EFX TO MAIN controls. If
you plug a 1/4" TS plug into the EFFECTS RE-
TURN jack(s), the effects signal from the
EMAC is disconnected from the signal path.
Instead, the external effects signal is routed to
the EFX TO MON and EFX TO MAIN controls.
Note: If you want to use the internal EMAC
and an external effects processor at the same
time, you have two options.
Stereo Version Connector Section
Serial effects device: The EFFECTS SEND
jack is wired the same as the channel INSERT
jacks, so you can use it to insert a processor in
series with the EMAC effects. Refer to the
"Channel Inserts" section
make this connection.
Parallel effects device: Plug a TS plug half-
way into the EFFECTS SEND jack (to the first
click). This allows you to use the EFFECTS
SEND jack as a direct out without affecting the
signal going to the EMAC. However, you must
use one of the LINE inputs (or one of the stereo
channel's stereo line inputs if it's a stereo pro-
cessor) to return the signal from the external
effects processor. If you plug into the EFFECTS
RETURN jack, the signal from the EMAC is dis-
connected from the signal path.

EFX FOOT SWITCH

You can connect a normally-open foot
switch to this connector to duplicate the
function of the EFX BYPASS switch. Closing
the switch connection causes the EFX BYPASS
indicator to light and mutes the effects signal.
This affects both the internal EMAC and an
external effects processor (if connected) using
the EFFECTS SEND and RETURN jacks.
Note: When a foot switch is plugged into the
FOOT SWITCH jack, the EFX BYPASS switch
is disabled.

POWER AMP IN 1 and 2

This is a 1/4" connector that accepts an un-
balanced line-level signal. Whatever signal you
plug into these jacks is routed to the power
amplifier inputs. This provides the ability to in-
sert a processor in the signal path between the
MIXER OUT and the POWER AMP IN.
408S
2 X 250W STEREO
to see how to
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