25
Owner’s Manual
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%
61
67
68
69
70
72
73
74
75
71
64
65
66
63
62
65. Preset Selector, Tap Delay and LED
Rotate these endless controls to select one of the
24 preset effects. When the rotation stops, that preset
will be loaded and become operational. The current
preset number is shown in the display [64].
The different presets are shown in the table to the
right and on the silkscreen in the upper right hand
corner of each VLZ4 4•Bus mixer. Further details of
each preset are explained in Appendix E on page 37.
1
Plate Reverb
13
Chorus
2
Vocal Plate
14
Reverb
3
Warm Room
15
Doubler
4
Bright Room
16
Tape Slap
5
Warm Lounge
17
Delay 1 Brt 350ms
6
Small Stage
18
Delay 1 Wrm 300ms
7
Warm Theater
19
Delay 2 Brt 250ms
8
Bright Stage
20
Delay 2 Wrm 200ms
9
Warm Hall
21
Delay 3 Brt 175ms
10
Concert Hall
22
Delay 3 Wrm 150ms
11 Cathedral
23
Dly 300ms
12 Gated Reverb
24
Dly 200ms
The knob also offers a tap delay function for presets
17-24. This works as follows:
1. Use the knob to select a preset from 17 to 24.
2. Press the knob in at least two times.
The DSP processor will calculate the time delay
between the last two pushes, and it will assign
this time interval to the echoes of the current
digital delay.
The minimum tap delay is 50 ms and the
maximum is 500 ms.
• If your taps are faster than 50 ms, they will
be set to 50 ms.
• If taps are 500 ms to 1 second, they will be
set to 500 ms.
• If taps are greater than 1 second apart,
they will be ignored. Try again a bit faster.
3. The LED will flash in time with the new tap
delay time.
66. Internal FX Mute
When engaged, the internal effects processor is
muted, and its output will not appear on the main mix,
monitor mix...or anywhere for that matter. The adjacent
mute LED will come on as a reminder that the effects
are muted. When power is first applied, these LEDs will
illuminate and the FX will be muted for about 10
seconds while the little FX gerbils inside settle down.
If this switch is not engaged, then the internal effects
are set free and may be added as required to the main
mix, monitor mix and last two stereo channels.
67. Solo Level
This knob is used to adjust the volume of the soloed
signal as it is routed to the monitor [15, 16] and phones
[17] outputs. This control is independent of, and prior
to, the monitor [68] and phones [69] level controls.