Mackie U.420, Owner'S Manual

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8
U.420 4-Channel Line Mixer
U.
4
20 4-Channel Line Mix
er
Keyboardist’s submixer
GND
PHONO
R
1 2 3 4
R
L
POWER
18V,1.5A
OUT
MAIN
OUT
AUX
(MONO)
R
L
(MONO)
L
R
L
(MONO)
L
(MONO)
L
R R
Main Mix
to
front-of-house
mixer
Personal Stereo Monitors
(SRM150 powered monitors)
Laptop
Organ
Keyboard Controller
Nord Lead
Electronic Piano
Acoustic
Guitar
GND
PHONO
R
1 2 3 4
R
L
POWER
18V,1.5A
OUT
MAIN
OUT
AUX
(MONO)
R
L
(MONO)
L
R
L
(MONO)
L
(MONO)
L
R R
Analog Synth
Keyboard workstation
Rhodes
HR824
studio
monitors
Aux to
studio mixer
Laptop
Keyboard Controller
Electronic Piano
Headphones
Keyboard recording station
This diagram shows an acoustic
guitar connected to channel 1, plus
a stereo performance synth like a
Nord Lead on channel 2, a good
organ like a Korg CX-3 on chan-
nel 3, and an electronic piano on
channel 4 (with a dab of chanel #5
behind each ear for good measure).
The main outputs are fed to the
FOH (front of house) mixer for the
audience’s listening pleasure. The
stereo aux output is being sent to a
pair of SRM150s on mic stands for
stereo stage monitoring.
A laptop is connected via
FireWire. This laptop is loaded with
awesome virtual instruments like
those in applications such as Logic,
and a USB keyboard is connected
for real-time performance.
This diagram shows a stereo keyboard
workstation, a groovy analog synth, an
electronic piano, and an electric organ con-
nected to channels 1–4.
The main outputs are fed to a pair of
Mackie HR studio monitors for local monitor-
ing, and the mixer’s Big Knob controls their
volume. The headphone output has its own
level control, independent of the Big Knob.
The stereo aux out sends signals to the main
studio recording console for tracking.
A laptop is connected via FireWire. This
laptop is loaded with awesome virtual
instruments like those in applications such as
Logic, and a USB keyboard is connected for
real-time performance and recording.
The FireWire loop through switch on top
of the mixer makes overdubbing a breeze.
In it’s normal out position, you can playback
the mix from your DAW and it will not
create a feedback loop. Only the analog
inputs 1-4 will be available for recording.
Track it!