10 Onyx 1640i
Rear Panel - Connections
1. POWER CONNECTION
Thisisastandard3-prongIECpowerconnector.
Connectthedetachablelinecord(includedinthebox
with your mixer) to the power receptacle, and plug the
otherendofthelinecordintoanACoutlet.TheOnyx
1640i has a universal power supply that can accept
any
ACvoltagerangingfrom100VACto240VAC.Noneedfor
voltage select switches. It will work virtually anywhere
in the world. That’s why we call it a “Planet-Earth” power
supply! It is less susceptible to voltage sags or spikes,
compared to conventional power supplies, and provides
greater electromagnetic isolation and better protection
againstAClinenoise.
Disconnecting the plug’s ground pin is
dangerous. Don’t do it.
2. POWER SWITCH
Press the top of this rocker switch inwards to turn on
the mixer. The front panel power LED [64] will glow
with happiness, or at least it will if you have the mixer
pluggedintoasuitableliveACmainssupply.
Press the bottom of this switch to put the mixer into
standby mode. It will not function, but the circuits are
stilllive.ToremoveACpower,eitherturnofftheAC
mains supply, or unplug the power cord from the mixer
andtheACmainssupply.
As a general guide, you should turn on your
mixer first, before any external power
amplifiers or powered speakers, and turn it off
last. This will reduce the possibilities of any turn-on, or
turn-off thumps in your speakers.
Onyx 1640i Features
48V 48V 48V 48V 48V 48V 48V 48V 48V 48V 48V 48V 48V 48V 48V 48V
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
SOLO
MUTE
EQ EQ EQ EQ EQ EQ EQ EQ EQ EQ EQ EQ EQ EQ EQ EQ
SOLO
SOLO
SOLO
SOLO
SOLO
SOLO
PREMIUM ANALOG MIXER
w/ PERKINS EQ & FIREWIRE
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
dB
30
20
10
40
50
5
5
U
60
10
OO
5
GAIN
CR/PHONES
ONLY
SUBS
1-2
3-4
SEND
TO
4
CONTROL
ROOM
PHONES
MAIN MIX
L
R
SUB ASSIGN
MAIN MIX
L
R
MAIN MIX
L
R
MAIN MIX
L
R
TO AUX 5
MAIN
SUBS
TO AUX 6
SENDS RETURNS
PRE
POST
PRE
POST
PRE
POST
PRE
POST
PRE
POST
PRE
POST
EFX TO
MON
RUDE
SOLO
20
15
10
6
3
0
2
4
7
10
20
30
SUB 3
-
4
FW 1-2
SUB 1
-
2
TAPE
ASSIGN TO
MAIN MIX
MAIN MIX
LEVEL
SET
CLIP
12345678910111213141516
12345678910111213141516
MAIN
MIX
SUB1 SUB4SUB3SUB2
SUB1 SUB4SUB3SUB2
4
3
22
11
6
4
2
1
5
6
3
PAN
AUX
AUX AUX AUXAUX AUX AUX AUX AUX AUX AUX AUX AUX AUX AUX AUX
12V 0.5A
LAMP
CTRL ROOM/PHONES
SOURCE
ASSIGN TO
FW 15-16
LEVEL
MIC
EXTERNAL
MIC
LINE
FW 1
LINE
FW 2
LINE
FW 16
LINE
FW 15
LINE
FW 14
LINE
FW 13
LINE
FW 12
LINE
FW 11
LINE
FW 10
LINE
FW 9
LINE
FW 8
LINE
FW 7
LINE
FW 6
LINE
FW 5
LINE
FW 4
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
75Hz
18dB/OCT
LINE
FW 3
DESTINATION
AUX MASTER
SENDS 1-6
TO FW 9-14
TALKBACK
PHONES
AUX 1-6
1 2345678910111213141516
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
+15
OO
+15
OO
+15
OO
+10
OO
+10
OO
+10
OO
+10
OO
+10
OO
+10
OO
+15
OO
+15
OO
+15
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUBS 1-4
TO FW 5-8
SOLO
LEVEL
PFL
AFL
TAPE TO
MAIN MIX
TAPE IN
MAX
OO
MAX
OO
SOLO
MODE
LR
0dB=0dBu
POWER
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
3
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OL
+10
0
-20
SUB
ASSIGN
MAIN
MIX
1
-
2
3
-
4
GAIN
4
2
1
5
6
33
PAN
HIGH
12kHz
LOW
80Hz
U
+15-15
U
+15-15
U
+15-15
U
+15-15
8k400
2k
2k100
400
HIGH
MID
FREQ
LOW
MID
FREQ
+40dB
U
-20dB
U
20
30
40
60
L
R
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
MAX
OO
SEND
PRE
POST
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OL
+10
0
-20
AUX MASTERS
R123 123456L4
MAIN MIX
ALTERNATE FIREWIRE ASSIGNMENTS
SUBGROUPS
TALKBACK
RECORDING OUTS
POST GAIN PRE INSERT
BALANCED
1
-
8
9-16
OO
+6
SUB OUT
FIREWIRE
CTRL-RM OUTTAPEMAIN INSERT
IN OUT
AUX SENDAUX RETURN
33
R
L
MONO
R
R
L
R
L
R
L
R
L
R
L
1
42
512
1
642
(MONO)
R
L
(MONO)
(MONO)
(MONO)
RL
MAIN OUT
POWER
ON
(TIP=SEND
RING=RTN)
BAL/UNBALBAL/UNBALBALANCED
MIC
+48v
HI-Z
L
BAL/UNBAL
MIC
+4dB
MAIN OUTPUT
LEVEL
BAL/UNBALBAL/UNBALBAL/UNBAL
1
INSERT
16 15 14 13 12 11 10 98765432
O
N
Y
X
M
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P
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E
HI-Z
BAL/UNBAL
INSERT
O
N
Y
X
M
I
C
P
R
E
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
LINE
BAL/UNBAL
INSERT
O
N
Y
X
M
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P
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O
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Y
X
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3. FIREWIRE CONNECTIONS
FireWire is a high-speed two-way interface for
connecting digital devices. Two FireWire connectors
allow the transfer of digital audio to and from your
computer or digital audio workstation (DAW) with
ultra-low latency. Usually, only one connector is used.
The FireWire interface provides the following outputs
to your computer:
• Individualchannels,tappedpre-fader,and
either pre-EQ, or post EQ (your choice).
• Auxsends1-6foreffectsplug-inroutingor
alternate mix recording.
• Su/jointfilesconvert/305364/bgroups1-4forsu/jointfilesconvert/305364/bgrouporalternatemix
recording.
• Left/rightmainmix.Theleft/rightmainmixat
the FireWire output is not affected by the main
mix fader (important for recording live).
Use FireWire to record a live performance directly to
your
computer, then you can mixdown to a stereo mix
or add overdubs later. Or you can use FireWire to turn
your Onyx mixer into a high-quality
computer audio
interface for your DAW.
The FireWire interface also provides 16 channels of
audio from your computer. The first two channels can
be routed to either channels 1-2 or the control room for
convenient monitoring of a wide range of applications
(iTunes
®
, for example).
TheFireWireinterfaceworkswithbothPC(using
ASIOforWindowsXPandVista)andMac(CoreAudio
forMacOS10.4.11orhigher).
See page 42 for more details about FireWire.
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5
7
4
8
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10
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11
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