Mackie 406M Owner's Manual - Page 24

Mixer Line Out, Tape In And Tape Out

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OO OO When a 1/4" plug is inserted in the POWER AMP IN jacks, the internal connection between the mixer section and the amplifier section is cut. This completely separates the mixer from the amplifiers, and it allows you to connect an external equalizer, compressor or effects processor in-line between them as shown. With a plug inserted in the POWER AMP IN jacks, the amplifiers will only play the external signals plugged into them. With no plug inserted, the mixer section and the amplifier section are joined and the amplifiers play the mixer signals as normal. 408S 2 X 250W STEREO L POWER AMP IN MAINS R POWER AMP IN MONITOR LINE OUT L MIXER OUT R MIXER OUT COMPRESSOR OUT IN U +15 LEVEL TAPE IN L L TAPE OUT IN OUT External equalizer, compressor, or processor You might use these inputs to connect the outputs from the opening band's mixing board. This way you don't have to set up two sets of speakers; the other band can plug right into the PPM Series and use its amplifiers and connected speakers (see application diagram on page 13). MIXER LINE OUT This is a 1/4" connector that produces an unbalanced line-level signal. This signal is fed from the internal mixer bus, just after the MAIN MASTER control and MAIN EQUALIZER, and just before the POWER AMP IN jacks. You can use the MIXER LINE OUTs to connect a sec- ond power amplifier, giving you the option of adding more power and more speakers (see application diagram on R page 10). R MONITOR LINE OUT This is a 1/4" connector that produces an unbalanced line-level signal. This signal is fed from the internal monitor bus, just after the MONITOR MASTER control and MONITOR EQUALIZER. Use this connection to drive an external monitor amplifier and speakers, or to supplement the PPM Series' monitor amplifier (when the POWER AMP ROUTING switch is pushed in) with another amplifier and speakers (see application diagram on page 8). If you have an external device in-line as shown in the diagram above, make sure it does not increase the signal gain too much, or it may overload the amplifier section. The PPM meters only show the signal level coming from the internal mixer section; they will not show any changes in gain due to the external device. TAPE IN and TAPE OUT These are unbalanced RCA-type connectors that match those typically used on tape decks and CD players. Use RCA-to-RCA patch cables to make these connections. POWER AMP ROUTING AMP 1 AMP 2 MAIN MAIN MAIN MONITOR 408M 2 X 250 WATTS EFFECTS (OVERRIDES INTERNAL EFX) EFX FOOT SWITCH SEND POWER AMP 1 IN MAINS POWER AMP 2 IN MONITOR LINE OUT RETURN MIXER LINE OUT COMPRESSOR OUT IN TAPE IN U L R +15 LEVEL L R TAPE OUT 24 Mono Version Connector Section

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24
When a 1/4" plug is inserted in the POWER
AMP IN jacks, the internal connection between
the mixer section and the amplifier section is
cut.
This completely separates the mixer from
the amplifiers, and it allows you to connect an
external equalizer, compressor or effects pro-
cessor in-line between them as shown.
With a plug inserted in the POWER AMP IN
jacks, the amplifiers will only play the external
signals plugged into them. With no plug in-
serted, the mixer section and the amplifier
section are joined and the amplifiers play the
mixer signals as normal.
External equalizer,
compressor, or processor
OUT
IN
L MIXER OUT
R MIXER OUT
COMPRESSOR
L POWER
AMP IN
R POWER
AMP IN
MONITOR
MAINS
TAPE IN
TAPE OUT
LEVEL
+15
U
O
O
LINE
L
R
R
L
OUT
408S
IN
OUT
2 X 250W STEREO
If you have an external device in-line as
shown in the diagram above, make sure it does
not increase the signal gain too much, or it may
overload the amplifier section. The PPM
meters only show the signal level coming from
the internal mixer section; they will not show
any changes in gain due to the external device.
You might use these inputs to connect the
outputs from the opening band’s mixing board.
This way you don’t have to set up two sets of
speakers; the other band can plug right into
the PPM Series and use its amplifiers and con-
nected speakers (see application diagram on
page 13).
MIXER LINE OUT
This is a 1/4" connector that produces an
unbalanced line-level signal. This signal is fed
from the internal mixer bus, just after the
MAIN MASTER
control and
MAIN EQUALIZER
,
and just before the
POWER AMP IN
jacks.
You can use the
MIXER
LINE OUT
s to connect a sec-
ond power amplifier, giving
you the option of adding more
power and more speakers
(see application diagram on
page 10).
MONITOR LINE OUT
This is a 1/4" connector
that produces an unbalanced
line-level signal. This signal is
fed from the internal monitor
bus, just after the
MONITOR MASTER
control
and
MONITOR EQUALIZER
.
Use this connection to drive an external
monitor amplifier and speakers, or to supple-
ment the PPM Series’ monitor amplifier (when
the
POWER AMP ROUTING
switch
is
pushed in) with another amplifier and speakers
(see application diagram on page 8).
TAPE IN and TAPE OUT
These are unbalanced RCA-type connectors
that match those typically used on tape decks
and CD players. Use RCA-to-RCA patch cables
to make these connections.
EFX FOOT
SWITCH
RETURN
SEND
MIXER LINE OUT
POWER
AMP 1 IN
POWER
AMP 2 IN
EFFECTS
(OVERRIDES INTERNAL EFX)
MONITOR
MAINS
TAPE IN
TAPE OUT
LEVEL
+15
U
O
O
LINE
L
R
R
L
OUT
POWER AMP ROUTING
AMP 1
MAIN
MAIN
MONITOR
AMP 2
MAIN
COMPRESSOR
IN
OUT
2 X 250 WATTS
408M
Mono Version Connector Section