22
VLZ4 4•Bus
51. USB Out
These two switches allow for monstrous flexibility on
the four recordable signals. The default switch
configuration (disengaged) routes subgroups 1-4 over
the USB connection to your favorite DAW software for
a “
mix it later
”
4-track recording. Engaging the switch
on the left allows the main L-R mix to be recorded for
convenient stereo mixes of the show. The other switch
allows aux 5/6 to be sent to the DAW for a unique stereo
recording or the use of DAW plug-ins as effects.
52. Master Aux Sends 1-6
These knobs provide overall control over the aux send
levels, just before they are delivered to the aux send
outputs [13]. These knobs go from off to +15 db when
turned all the way up.
This is usually the knob you turn up when the lead
singer glares at you, points at his stage monitor, and
sticks his thumb up in the air. (It would follow that if
the singer stuck his thumb down, you’d turn the knob
down, but that never happens.)
Keep in mind that aux sends 3-4 may either be
pre- or post-fader, depending on the position
of the channel's aux pre/post switch [28].
53. Master Aux Sends Solo
This button allows you to solo an individual aux send.
If you are using the aux sends to feed your stage
monitors, you may use these buttons to check your
monitor mix. The rude solo LED [59] will flash to let
you know the solo system is active.
The aux send solo is AFL and is not affected by the
solo mode switch (PFL/AFL) [60], except that in PFL
mode only the left meter indicates the signal.
54. Stereo Returns 1-2 to Aux 1-4/Main
These ten controls set the overall level of line signals
received from the stereo return 1-2 inputs [5]. These
controls range from off to +15 db of gain when fully
clockwise, to compensate for low-level effects.
Signals passing through these controls go directly to
the main mix and aux 1-4 buses where they are
combined with signals from the channels.
55. Stereo Returns Solo
This button allows you to solo a stereo return. The
rude solo LED [59] will flash to let you know that the
solo system is active. Since this is an input, this signal is
affected by the PFL/AFL master switch.
56. 48V LED
Most modern professional condenser mics require
48V phantom power, which lets the mixer send
low-current DC voltage to the mic’s electronics
through the same wires that carry audio. (Semi-pro
condenser mics often have batteries to accomplish the
same thing.) “Phantom” owes its name to an ability to
be “unseen” by dynamic mics (Shure SM57/SM58, for
instance), which don’t need external power and aren’t
affected by it anyway.
Phantom power for all mic inputs (except the
talkback mic) may be selected by pressing up on
the mixer's phantom [21] switch.
Never plug single-ended (unbalanced)
micro phones, or ribbon mics into the mic
input jacks if phantom power is on. Do not
plug instrument outputs into the mic XLR input jacks
with phantom power on, unless you are certain it is safe
to do so.
57. Power LED
This green LED will illuminate when the mixer is
turned on, as a reminder of how on it really is. If it is
not on, then it is off, and the mixer becomes a rather
nice weight for keeping your morning newspaper from
blowing away in the wind.
If it does not turn on, make sure the power cord is
correctly inserted at both ends, the local AC mains
supply is active, and the power switch [20] is on.
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
PAN
L
R
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
MID
200
2k
800
100
8k
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
FREQ
1
MUTE
PAN
L
R
2
MUTE
PAN
L
R
3
MUTE
PAN
L
R
4
MUTE
PAN
L
R
5
MUTE
PAN
L
R
6
MUTE
PAN
L
R
7
MUTE
PAN
L
R
8
MUTE
PAN
L
R
9
MUTE
PAN
L
R
10
MUTE
PAN
L
R
11
MUTE
PAN
L
R
12
MUTE
PAN
L
R
13
MUTE
PAN
L
R
14
MUTE
PAN
L
R
15
MUTE
PAN
L
R
16
MUTE
PAD
-20dB
1
LOW CUT
100 Hz
GAIN
PAD
-20dB
2
LOW CUT
100 Hz
GAIN
PAD
-20dB
3
LOW CUT
100 Hz
GAIN
PAD
-20dB
4
LOW CUT
100 Hz
GAIN
PAD
-20dB
5
LOW CUT
100 Hz
GAIN
PAD
-20dB
6
LOW CUT
100 Hz
GAIN
PAD
-20dB
7
LOW CUT
100 Hz
GAIN
PAD
-20dB
8
LOW CUT
100 Hz
GAIN
PAD
-20dB
9
LOW CUT
100 Hz
GAIN
PAD
-20dB
10
LOW CUT
100 Hz
GAIN
PAD
-20dB
11
LOW CUT
100 Hz
GAIN
PAD
-20dB
12
LOW CUT
100 Hz
GAIN
PAD
-20dB
13
LOW CUT
100 Hz
GAIN
PAD
-20dB
14
LOW CUT
100 Hz
GAIN
PAD
-20dB
15
LOW CUT
100 Hz
GAIN
PAD
-20dB
16
LOW CUT
100 Hz
GAIN
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
1
2
SUBGROUPS
PUSH
TO TALK
MAIN
RIGHT
AUX 1-4
SOLO
STEREO
LEFT
RIGHT
SOLO
LEFT
RIGHT
SOLO
STEREO
LEFT
RIGHT
SOLO
LEFT
1
2
3
4
MAIN MIX
TALKBACK
OFF
MAX
COMP
OFF
MAX
COMP
OFF
MAX
COMP
OFF
MAX
COMP
LEVEL
PHONES
TO AUX 1
TO AUX 2
SOLO
MONITOR
TAP
DELAY
MUTE
TO AUX 1
TO AUX 2
TAP
DELAY
MUTE
FX MASTER
FX MASTER
TO LR
TO LR
FX
2
SIG/OL
FX
1
SIG/OL
SOLO
SOLO
1
2
3
4
SOLO
SOLO MODE
SOLO
SOLO
SOLO
SOLO
SOLO
PFL
AFL
AUX
AUX
AUX
AUX
CH 1-2
CH 3-4
AUX 5-6
PWR
RUDE SOLO
48V
USB OUT
SUBS 3-4
20
10
7
4
2
0
2
4
7
10
20
30
LEVEL
SET
SUBS 1-2
MAIN
TO LR
TAPE
USB
2-TRACK RETURN
SUCK
SOLO
12V
0.5A
OFF
MAX
COMP
OFF
MAX
COMP
OFF
MAX
COMP
OFF
MAX
COMP
LOW CUT
100 Hz
LOW CUT
100 Hz
LOW CUT
100 Hz
LOW CUT
100 Hz
FX 1
FX 2
USB
21
22
23
24
HI
12k
HI
MID
2.5k
LOW
MID
400Hz
HI
MID
2.5k
-15
+15
U
-15
+15
U
-15
+15
U
-15
+15
U
LOW
80Hz
LOW
MID
400Hz
LOW
80Hz
-15
+15
U
HI
12k
2
3
4
5
6
1
+15
U
+15
U
+20
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
-15
+15
U
-15
+15
U
-15
+15
U
-20
+20
U
-20
+20
U
AUX MASTER
LR
STEREO RETURNS
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
FREQ
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
FREQ
MID
200
2k
800
100
8k
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
FREQ
MID
200
2k
800
100
8k
EQ
EQ
EQ
HI
12k
-15
+15
U
-15
+15
U
LOW
80Hz
-15
+15
U
FREQ
MID
200
2k
800
100
8k
PAN
L
R
17
MUTE
PAN
L
R
18
MUTE
PAN
L
R
19
MUTE
PAN
L
R
20
MUTE
BAL
L
R
21/22
MUTE
ALT 3-4
BAL
L
R
0 dB=0 dBu
LEFT RIGHT
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
1-2
3-4
LR
OL
-20
30
20
10
10
40
50
5
5
U
60
dB
O
O
SOLO
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
FX
AUX 5/6
PRE
PRE
FX1
FX2
PRE
1
2
+15
U
AUX
+15
U
3
4
5
6
+15
U
+15
U
+15
U
+15
U
23/24
MUTE
ALT 3-4
30
20
10
10
40
50
5
5
U
60
dB
O
O
30
20
10
10
40
50
5
5
U
60
dB
O
O
30
20
10
10
40
50
5
5
U
60
dB
O
O
30
20
10
10
40
50
5
5
U
60
dB
O
O
30
20
10
10
40
50
5
5
U
60
dB
O
O
30
20
10
10
40
50
5
5
U
60
dB
O
O
17
GAIN
18
GAIN
19
GAIN
20
GAIN
LINE GAIN
LINE GAIN
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
30
-20dB
+40dB
U
60
U
40
20
50%
100%
0%
25%
75%
46
47
48
52
54
55
60
59
58
56
57
49
53
50
51
