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Architect & Engineering Specifi cations
1. GENERAL CONFIGURATION. The mixer shall accommo-
date 16 line and/or 16 microphone signals, channels 1–16;
and shall include 16 Send/Return channel Inserts; 8 chan-
nel Direct Outputs, channels 1–8; 4 stereo pairs of Aux
Return inputs; 1 stereo pair of Main Mix outputs; 1 Main
Mix Mono output, 1 stereo pair of Control Room outputs;
4 Submaster outputs; 6 Aux Send outputs; 1 stereo pair
of RCA-type phono Tape outputs; and 1 stereo Headphones
output. The mixer shall be capable of placement on a table
or installation in a standard 19-inch rack mount via rack
rail brackets (included); shall be fi tted with 1 rocker-type
Power switch; 1 3-pin power receptacle with user-replace-
able 5x20mm fuse drawer; 1 BNC socket, providing 12VDC
for fi tting an external lamp (not included); and shall be
entirely self-contained.
2. MIXER INPUTS.
CHANNELS 1–16: Each channel shall include an XDR™
(Extended Dynamic Range) electronically balanced micro-
phone input, using an XLR-3-F-type connector, accepting
nominal levels from –60dBu to +4dBu via a rotary Trim
control. Phantom power shall be globally-controlled via
a rocker-type switch. 16 Balanced/unbalanced (bal/unbal)
line inputs shall be wired in parallel, using 1/4" TRS
phone jacks, accepting nominal levels from –40dBu to
+4dBu. Each channel shall include a pre-fader Insert
point, using 1/4" TRS phone jacks (tip=send, ring=return,
sleeve=ground), delivering and accepting nominal levels
from –10dBV to +4dBu.
OTHER INPUTS: The mixer shall include 8 bal/unbal
Aux Return inputs, forming four stereo pairs, using 1/4"
TRS phone jacks, accepting nominal levels from –10dBV
to +4dBu; and 1 stereo pair of Tape In jacks, using unbal-
anced RCA-type phono jacks, accepting nominal levels from
–10dBV to +4dBu.
3. MIXER OUTPUTS.
MAIN OUTPUTS: The mixer’s Main Mix stereo outputs
shall be fi tted in two ways: Using symmetrically balanced
(also accepting unbalanced) 1/4" TRS phone jacks, deliv-
ering maximum output of +28dBu; and using unbalanced
RCA-type phono jacks (labeled TAPE OUT), delivering nomi-
nal levels from –10dBV to +4dBu; and the Main Mix Mono
output shall be fi tted with one symmetrically balanced
(also accepting unbalanced) 1/4" TRS phone jack, delivering
nominal levels from –10dBV to +4dBu.
OTHER OUTPUTS: Input channels 1–8 shall each include
a post-fader Direct Output, using bal/unbal 1/4" TRS phone
jacks, delivering nominal levels from –10dBV to +4dBu.
The mixer shall include 4 Submaster outputs, using bal/
unbal 1/4" TRS phone jacks, delivering nominal levels
from –10dBV to +4dBu; 1 stereo pair of Control Room
outputs, using bal/unbal 1/4" TRS phone jacks, delivering
nominal levels from –10dBV to +4dBu; 6 Aux Send outputs
using bal/unbal 1/4" TRS phone jacks, delivering nominal
levels from –10dBV to +4dBu; and 1 stereo Headphones
output, using an unbalanced 1/4" TRS phone jack (tip=left,
ring=right, sleeve=ground).
4. MIXER INPUT SECTION. In addition to the controls
listed in section 2 (MIXER INPUTS), each channel shall
include 4 rotary Aux Send controls and 1 Shift switch, pro-
viding up to 15dB gain, routing signals to Aux Sends 1, 2,
3 and 4 when the Shift switch is disengaged, and to Aux
PAN
AUX
3
1
2
EQ
5
4
6
5/6
SHIFT
PRE
TRIM
1
SOLO
L - R
3
–
4
1
–
2
OL
-
20
U
OO
+15
U
OO
+15
U
OO
+15
U
+15-15
U
+15-15
800
2k200
8k
U
+15-15
12k
HI
MID
80Hz
LOW CUT
75 Hz
18dB/OCT
LOW
10 0
U
OO
+15
1
MUTE
M
I
C
G
A
I
N
060
+15dB -45dB
-
1
0
d
B
V
L
R
OO
U
AUX
SEND
STEREO AUX RETURN
EFFECTS TO
MONITORS
TO AUX
SEND 2
TO AUX
SEND 1
1
2
PWR
PHAN
SOLO
SOLO
1
2
1
2
3
4
1
2
C
-
R / PHNS
ONLY
RETURNS
SOLO
MAIN MIX
TO SUBS
ASSIGN OPTIONS
1
–
2
3
–
4
U
OO
+20
U
OO
+20
U
OO
+15
U
OO
+15
U
OO
+20
U
OO
+20
U
OO
+10
U
OO
+10
LEFT RIGHT
PHONES
LAMP
12 V
0.5A
TAPE IN
SOLO
RUDE
SOLO
LIGHT
CTL ROOM / PHONES
SUBS 3
–
4
SUBS 1
–
2
MAIN MIX
CTL ROOM
SOURCE
TAPE
TAPE TO
MAIN MIX
MAIN
MIX
RIGHT
1234
LEFT
RIGHT
LEFT
RIGHT
LEFT
RIGHT
LEFT
28
10
7
4
2
2
0
4
7
10
20
30
ASSIGN TO MAIN MIX
LEVEL
SET
MODE
(AFL)
LEVEL SET
NORMAL
(PFL)
U
OO
+20
OO
OO
MAX
0 dB=0 dBu
MAX
dB
30
20
10
OO
40
50
5
5
U
60
10
dB
30
20
10
OO
40
50
5
5
U
60
10
1604-VLZPRO
16-CHANNEL MIC/LINE MIXER
WITH PREMIUM XDR
TM
MIC PREAMPLIFIERS