Mackie 1640 User Manual Page 20

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20
ONYX 1640
ONYX 1640
Rear Panel
This is where all the connections are made to the
Onyx 1640 (except the headphones and the lamp).
One of the things that revolutionized the compact
mixer industry was the convertible pod found on the
original, classic CR-1604. Using an ordinary phillips
screwdriver, the mixer could be converted from desk-
top mode (as it comes from the factory) to rackmount
mode. Fear not. This feature is so popular that we have
kept it in the Onyx 1640. Refer to Appendix D for in-
structions on converting the I/O pod for rack mounting.
A third option allows you to rotate the pod so that the
jacks are on the same plane as all the knobs, buttons, and
faders. This is a lifesaver when you have to do frequent
repatching of the connectors. This, however, requires
the optional rotopod bracket, not supplied with the Onyx
1640. Contact your Mackie dealer for details.
47. MIC Input
This is a female XLR connector, which accepts a bal-
anced microphone input from almost any type of micro-
phone. The microphone preamps feature our new Onyx
design, with higher delity and headroom rivaling any
standalone mic preamp on the market today.
The XLR inputs are wired as follows:
Pin 1 = Shield or ground
Pin 2 = Positive (+ or hot)
Pin 3 = Negative ( or cold)
48. LINE Input (Channels 3-16)
This is a 1/4" TRS connector, which accepts a balanced or
unbalanced line-level input signal from almost any source.
When connecting a balanced signal to the LINE inputs,
wire them as follows:
Tip = Positive (+ or hot)
Ring = Negative ( or cold)
Sleeve = Shield or ground
When connecting an unbalanced signal, wire them as
follows:
Tip = Positive (+ or hot)
Sleeve = Shield or ground
49. HI-Z Instrument Input
(Channels 1-2)
This is a 1/4
"
connector, which accepts an unbalanced
instrument-level input signal from a high-impedance
instrument like a guitar.
50. CHANNEL INSERT
These 1/4
"
TRS jacks provide a send and return point
for channels 1-16. Use the CHANNEL INSERT jacks
to connect serial effects devices such as compressors,
equalizers, de-essers, or lters to each individual channel.
The INSERT points are after the GAIN and Low Cut
controls, but before the EQ and Fader controls. The
send (tip) is low-impedance, capable of driving any
device. The return (ring) is high-impedance and can be
driven by almost any device.
Special insert cables are available, specially designed
for this kind of insert jack. They are wired as follows:
tip
this plug connects to one of the
mixers Channel Insert jacks.
ring
tip
ring
sleeve
SEND to processor
RETURN from processor
(TRS plug)
Tip = Send (output to effects device)
Ring = Return ( input from effects device)
Sleeve = Common ground (connect shield to all
three sleeves)
Besides being used for inserting external devices,
these jacks can also be used as channel direct outputs;
post-GAIN, post-LOW CUT, and pre-EQ. This is an unbal-
anced direct out, in contrast to the RECORDING OUTS
on the rear panel, which are balanced direct outputs,
post-GAIN, pre-LOW CUT.
TALKBACK
MIC
OO
+6
SUB OUTC
-
R OUT
MAIN
INSERT
(TIP=SEND
RING=RETURN)
TAPE
INPUT
TAPE
OUTPUT
MAIN OUT AUX SENDAUX RETURN
3
R
L
MONO
R
R
R
R
L
R
L
R
L
R
L
LLL
1
4
2
5
1
2
34
31
6
4
2
(MONO)(MONO)(MONO)
DESIGNED BY MACKOIDS IN WOODINVILLE, WA , USA • MANUFACTURED IN CHINA • FABRIQUE EN CHINE • COPYRIGHT ©2004 • THE FOLLOWING ARE TRADEMARKS OR REGISTERED TRADEMARKS OF LOUD TECHNOLOGIES INC.: "MACKIE", "ONYX", AND THE "RUNNING MAN" FIGURE • US PATENT NUMBER 29/049,129
MAIN
OUTPUT
LEVEL
RIGHT LEFT
MAIN OUTS
MIC
+4dB
16
INSERT
LINE
BAL
UN
-
BAL
O
N
Y
X
M
I
C
P
R
E
MIC
INSERT
LINE
BAL
UN
-
BAL
O
N
Y
X
M
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P
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E
MIC
INSERT
LINE
BAL
UN
-
BAL
O
N
Y
X
M
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C
P
R
E
MIC
INSERT INSERT INSERT INSERT INSERT
LINE
BAL
UN
-
BAL
O
N
Y
X
M
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P
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E
MIC
LINE
BAL
UN
-
BAL
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X
M
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MIC
LINE
BAL
UN
-
BAL
O
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Y
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P
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MIC
LINE
BAL
UN
-
BAL
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Y
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MIC
LINE
BAL
UN
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BAL
O
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Y
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P
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MIC
INSERT
LINE
BAL
UN
-
BAL
O
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Y
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P
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MIC
INSERT
LINE
BAL
UN
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BAL
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Y
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MIC
INSERT
LINE
BAL
UN
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BAL
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Y
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MIC
INSERT
LINE
BAL
UN
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BAL
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MIC
INSERT
LINE
BAL
UN
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BAL
O
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Y
X
M
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P
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E
MIC
INSERT
LINE
BAL
UN
-
BAL
O
N
Y
X
M
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P
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MIC
INSERT
HI
-
Z
BAL
UN
-
BAL
O
N
Y
X
M
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C
P
R
E
MIC
INSERT
HI
-
Z
BAL
UN
-
BAL
O
N
Y
X
M
I
C
P
R
E
MIC
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
BAL/UNBAL BAL/UNBALBAL/UNBALBAL/UNBALBAL/UNBAL BALANCED
SERIAL NUMBER
MANUFACTURING DATE
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER.
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
CAUTION
AVIS:
RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
+
48V
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