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4-Channel DI Box
Please read these operating instructions carefully
prior to operating the unit and keep them for later
use.
1 Operating Elements and Connections
[Item numbers (1) to (5) for channel 1 only;
channels 2, 3, and 4 are identical]
1 Unbalanced input (6.3 mm jack)
2 Unbalanced feedthrough output (6.3 mm jack);
at this jack, the fed-through input signal of jack
(1) can be picked up
3 Switch for attenuating the input signal
4 Groundlift switch for separating the ground
connection between the input (1) and the out-
puts (5)
5 Balanced outputs (XLR) on the front panel and
rear panel, connected in parallel
6 Clamping screw for an additional ground con-
nection
2 Safety Notes
The unit corresponds to all required directives of
the EU and is therefore marked with
G
The unit is suitable for indoor use only. Protect
it against dripping water and splash water, high
air humidity, and heat (admissible ambient tem-
perature range 0 – 40 °C).
G
Only use a dry, soft cloth for cleaning. Do not
use any chemicals or water.
G
No guarantee claims for the unit and no liability
for any resulting personal damage or material
damage will be accepted if the unit is used for
other purposes than originally intended, if it is
not correctly connected, operated, or not re -
paired in an expert way.
If the unit is to be put out of operation
definitively, take it to a local recycling
plant for a disposal which is not harm-
ful to the environment.
CHANNEL 1
IN
DIB-106
ATT.
GND
QUAD DI BOX
dB
0 20 40
NORM. GND
UNB. 47kΩ
PAR. OUT
LIFT
1
2
3
4
CH. 4 BAL. OUT
INPUT
OVERDRIVE CHANNEL
NORMAL CHANNEL
MASTER
PHONES
1
2
PROFESSIONAL GUITAR AMPLIFIER
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
GAIN
CHANNE
GAIN 1
GAIN 2
CONTOU
SELEC
BASS
MIDDLE
TREBLE
LEVEL
L
LEVEL
BASS
MIDDLE
TREBLE
REVERB
VOLUME
MIN. 8 Ω
POWER
Instrument amplifier
3 Applications
The 4-channel DI Box (Direct Injection) DIB-106
has been designed for optimum connection of
musical instruments with unbalanced, high-
imped ance outputs to balanced, low-impedance
inputs of a mixer (fig. 3). Due to the balanced con-
nection to the mixer, interferences can be pre-
vented even in case of long connection cables.
High signal levels can be reduced with the
attenuator and be matched to the mixer input.
Thus, the DI Box can also be directly connected to
the speaker output of an instrument amplifier (e. g.
guitar amplifier). Consequently, the influence of
the amplifier on the sound of the signal is main-
tained.
4 Setting into Operation
The unit has been specially designed for installa-
tion into a rack (482 mm/19"), but it can also be
placed as desired, if required.
The DI Box does not require a power supply.
The following text describes channel 1 only. Chan-
nels 2 to 4 can be set into operation in the same
way.
4.1 Connecting the unbalanced input
Connect the output of the musical instrument to
.
the input jack "UNB. 47 kΩ" (1). Alternatively, the
input jack can also be connected to the speaker
output of an instrument amplifier.
Caution! Never connect speaker outputs of
am plifiers operating in bridge circuit;
the DI Box will short-circuit them.
If the switch "ATT." (3) is at the left stop at "0", the
level of the input signal is not attenuated. If distor-
tions occur on the following mixer, set the switch
to position "20 dB" or, in case of very high signals,
to position "40 dB".
4.2 Connecting the balanced output
The balanced output signal is available at the two
XLR outputs (5), connected in parallel, on the front
panel and rear panel. Connect the respective out-
put via a balanced cable to a highly sensitive input
of a mixer (e. g. microphone input).
CHANNEL 2
OUT
IN
ATT.
GND
dB
0 20 40
NORM. GND
BAL. 600 Ω
UNB. 47kΩ
PAR. OUT
LIFT
5
WWW.IMGSTAGELINE.COM
CH. 3 BAL. OUT
IN
CHANNEL 1
DIB-106
ATT.
GND
QUAD DI BOX
dB
0 20 40
NORM. GND
UNB. 47kΩ
PAR. OUT
Musical instrument
®
MONACOR INTERNATIONAL GmbH & Co. KG • Zum Falsch 36 • 28307 Bremen • Germany
©
Copyright
by MONACOR INTERNATIONAL. All rights reserved.
CHANNEL 3
OUT
IN
ATT.
GND
dB
0 20 40
NORM. GND
BAL. 600 Ω
UNB. 47kΩ
PAR. OUT
LIFT
6
GND
CH. 2 BAL. OUT
OUT
IN
CHANNEL 2
OUT
IN
CHANNEL 3
OUT
IN
CHANNEL 4
ATT.
GND
ATT.
GND
dB
0 20 40
NORM. GND
dB
0 20 40
NORM. GND
dB
LIFT
BAL. 600 Ω
UNB. 47kΩ
PAR. OUT
LIFT
BAL. 600 Ω
UNB. 47kΩ
PAR. OUT
LIFT
BAL. 600 Ω
UNB. 47kΩ
PAR. OUT
DI-Box
DIB-106
Best.-Nr. 24.1750
4.3 Using the feedthrough output
For feeding the instrument signal simultaneously
to an amplifier, connect the amplifier input to the
jack "PAR. OUT" (2) [see fig. 3]. This is where the
signal coming from the instrument is directly
applied.
Attention! The feedthrough output is not suit-
able for connecting speakers. Risk
of overload!
4.4 Groundlift switch
If the groundlift switch "GND" (4) is at the left posi-
tion "NORM.", the ground of the unbalanced input
(1) is connected to the ground of the balanced out-
puts (5). This switch position should be selected
first. However, if a hum loop occurs, set the switch
to position "GND LIFT". The ground connection is
then separated (DC separation).
5 Specifications
Frequency range: . . . . . 15 to 30 000 Hz
Attenuation of
the input signal: . . . . . . . 0 dB, 20 dB, 40 dB
Inputs
4 × 6.3 mm jack: . . . . 47 kΩ, unbal.
Outputs
4 × 6.3 mm jack: . . . . feedthrough outputs,
unbal.
8 × XLR: . . . . . . . . . . 600 Ω, bal.
Transmission ratio: . . . . 10 : 1
Ambient temperature: . . 0 – 40 °C
Dimensions: . . . . . . . . . 482 × 44 × 90 mm,
1 rack space
Weight: . . . . . . . . . . . . . 1.2 kg
Subject to technical change.
CHANNEL 4
OUT
IN
ATT.
GND
dB
0 20 40
NORM. GND
BAL. 600 Ω
UNB. 47kΩ
PAR. OUT
LIFT
5
CH. 1 BAL. OUT
L
L
1
MONO
MONO
R
R
2
MIC
MIC
MIC
MIC
AUX RTN1
AUX RTN 2
AUX SEND
L
L
L
L
L
L
LINE
LINE
LINE
LINE
MONO
MONO
MONO
R
R
R
INSERT
INSERT
INSERT
INSERT
LINE
LINE
LINE
CH1
CH 2
CH 3
CH 4
CH 5/6
CH 7/8
CH 9/10
OUT
GAIN
5
GAIN
5
GAIN
5
GAIN
5
GAIN
5
GAIN
5
0
10
0
10
0
10
0
10
0
10
0
10
ATT.
GND
HIGH
0
HIGH
0
HIGH
0
HIGH
0
HIGH
0
HIGH
0
HIGH
0
0 20 40
NORM. GND
LIFT
BAL. 600 Ω
-15
+15
-15
+15
-15
+15
-15
+15
-15
+15
-15
+15
-15
+15
LOW
0
LOW
0
LOW
0
LOW
0
LOW
0
LOW
0
LOW
0
-15
+15
-15
+15
-15
+15
-15
+15
-15
+15
-15
+15
-15
+15
AUX 1
5
AUX 1
5
AUX 1
5
AUX 1
5
AUX 1
5
AUX 1
5
AUX 1
5
0
10
0
10
0
10
0
10
0
10
0
10
0
10
AUX 2
5
AUX 2
5
AUX 2
5
AUX 2
5
AUX 2
5
AUX 2
5
AUX 2
5
0
10
0
10
0
10
0
10
0
10
0
10
0
10
PAN
C
PAN
C
PAN
C
PAN
C
BAL
C
BAL
C
BAL
C
L
R
L
R
L
R
L
R
L
R
L
R
L
R
1
2
3
4
5/6
7/8
9/10
10
+20
10
+20
10
+20
10
+20
10
+20
10
+20
10
5
U
5
U
5
U
5
U
5
U
5
U
5
0
0
0
0
0
0
0
Mixer
A-0537.99.03.07.2011
OUT
BAL. 600 Ω
Œ
POWER
L
L
R
R
TAPE OUT
MAIN OUT
L
L
L
MONO
R
R
TAPE IN
LINE
CH11/12
MMX-124
12-INPUT MIXING CONSOLE
HIGH
0
+22
CLIP
PHANTOM POWER
+10
+7
POWER
-15
+15
+4
LOW
0
+2
0
—2
-15
+15
—4
LEVEL
5
AUX 1
5
—7
—10
—20
0
10
0
10
—30
AUX 2
5
DISPLAY
SELECTOR
LEFT
RIGHT
GAIN 1— 4
LINE 1—12
PHONES
0
10
BAL
C
AUX RTN 1
5
AUX RTN 2
5
AUX RTN2
L
R
0
10
0
10
11/12
L
R
+20
10
+20
10
+10
10
+10
U
5
U
5
U
5
U
Ž
0
0
0
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