MLM 42 Data Sheet
DATA SHEET
MLM 42
MIC/LINE MIXER
+6
1
+6
4
0
0
OFF
OFF
LO
MID
+6
2
HI
OL
4
8
0
2
+6
6
10
LEVEL
LO
0
0
OFF
OFF
MID
+6
2
HI
OL
4
8
0
3
+6
6
10
LEVEL
LO
0
0
OFF
OFF
MID
+6
2
HI
OL
4
8
0
4
+6
6
10
LEVEL
LO
0
0
OFF
OFF
MID
EFFECTS
2
8
0
HI
OL
OUTPUT
6
4
6
0
10
2
10
DRY
WET
LEVEL
OL
MLM 42
8
MIC/LINE MIXER
LEVEL
POWER
Description
The evolution of the entertainment industry has necessitated
the creation of an outboard mic/line device to compliment existing mixing consoles. Whether you’re recording, mobile mixing,
or broadcasting, there are occasional needs to expand your existing arrangement. Frustrations abounded when it came to adding
mics for interviews, karaoke, and live performances because it
was cost prohibitive. Now it’s quite inexpensive to enhance your
existing gear and expand the number of live mics for any gig.
The MLM 42 is unique. Four Burr-Brown mic preamps give you
the studio-grade quality you’ve asked for.
Applications are everywhere. The MLM 42 is designed to fit
into a variety of situations where cost is an issue and Rane quality is a must:
•
•
•
•
•
•
Live Sound
Studio and Remote Radio & Television Broadcasting
Professional Night Club
Fixed Commercial Installations
DJ Mixer (Mic) Expansion
Karaoke
Each input includes all the features you need:
• Input Level control with Overload indicator
• 15 Volt Phantom Power
•
•
•
•
•
•
Dedicated mic and line input jacks
3-band Accelerated-Slope™, full-cut tone controls
Four quality mic preamps, quiet to -126 dBu EIN
Post-mix Effects loop includes Wet/Dry pan control
RCA unbalanced; XLR & ¼" TRS balanced parallel outputs
Balanced outputs Mic or Line selectable
MIC
4
MIC
3
MIC
2
MIC
7
MIC
6
SEND
MIC
5
MLM 42
(OPTIONAL)
IN 1
IN 2
IN 3
IN 4
OUT LEFT
OUT RIGHT
MIC
1
MLM 42
MIC
1
MLM 42
(OR)
CD PLAYER
MIC
2
IN 1
IN 2
IN 3
IN 4
MIC
8
MIC
4
MIC
3
SEND
RETURN
OR
IN 3
IN 4
EFFECTS BOX
IN
OUT
AMPLIFIER OR
MAIN MIXER
OUT A
OUT B
4 Mic Mixer, or 2 Mics and a CD Player
LEFT LINE IN
IN 1
IN 2
IN 3
IN 4
SEND
RETURN
RECORDER
RCA
OUT A
OUT B
LEFT LINE IN
RIGHT LINE IN
MAIN MIXER
XLR
OUT
MIC IN
RIGHT LINE IN
Connecting 2 MLM 42's for 8 Mic Inputs
Data Sheet-
MLM 42
MIC/LINE MIXER
Parameter
Mic Inputs: Type
..........Connectors (Mic/Line)
..........Input Imped. (Mic/Line)
..........Gain Range (Mic/Line)
..........Max Input (Mic/Line)
..........Max Input (Mic/Line)
..........Frequency Response
..........Equivalent Input Noise
..........Common Mode Rejection
..........THD+N
..........Phantom Power
Tone Controls: Type
..........Boost/Cut Range
..........Lo/Mid and Mid/High
Effects Loop: Type
..........Input Impedance
..........Output Impedance
..........Maximum Output
A/B unbalanced outputs: Type
..........Output Impedance
..........Maximum Output
Balanced Outputs: Type
..........Output Imped. (Mic/Line)
..........Max. Output (Mic/Line)
..........SN
..........THD+N
..........Control Feed-through
Crosstalk
Unit: Agency Listing
..........120 VAC model
..........230 VAC model
Power Supply: Agency Listing
..........120 VAC model
..........230 VAC model
Power Supply Requirement
..........Maximum Current
Unit: Construction
..........Size
..........Weight
Shipping: Size
..........Weight
Note: 0 dBu=0.775 Vrms
Data Sheet-
Specification
Active balanced
XLR / TRS
836 / 3.32k
12 to 50 / 0 to 12
+10 / +22
-28 / +10
10 Hz-50 kHz
-126
60
0.01
15
Accelerated-Slope
+6 to full cut (off)
300 / 4k
Active unbalanced
30.1k
300
+20
Active unbalanced; Mono
300
+20
Active balanced
51.1 / 150
-16 / +24
90
.0035
-80
-75 @ 1 kHz
Limit
Units
1%
2
+.5,-3
max
min
typ
5%
Ω
dB
dBu
dBu
dB
dBu
dB
%
VDC
typ
5%
dB
Hz
min
1%
min
Ω
Ω
dBu
1%
min
Ω
dBu
1%
min
typ
typ
typ
max
Ω
dBu
dB
%
dB
dB
Separation frequencies
¼" TS connector
1 kHz
1 kHz
load = 10 kΩ, 1 kHz
RCA connectors; (same as A & B)
1 kHz
load = 10 kΩ, 1 kHz
¼" TRS and XLR connectors
1 kHz
load = 10 kΩ, 1 kHz
20-20 kHz, 1 Line Input, unity, +4 dBu
20-20 kHz, +4 dBu, Line Input, unity
all front panel level controls @ 1 kHz
re +4 dBu, any channel to any channel
Vrms
mA
National Electrical Code
Exempt Class 2 equipment
Exempt Class 2 equipment
EMC directive 89/336/EEC
Exempt per Art. 1 of LVD 73/23/EEC
Class 2 Equipment
File no. E88261
File no. LR58948
EMC directive 89/336/EEC
LV directive 73/23/EEC
RS 1 (see data sheet)
RMS current from remote supply
Class 2 Equipment
UL
CSA
CE-EMC
CE-Safety
UL
CSA
CE-EMC
CE-Safety
18 VAC w/center tap
600
All Steel
1.75"H x 19"W x 5.3"D (1U)
4 lb
4.25" x 20.3" x 13.75"
8 lb
10%
Conditions/Comments
Burr-Brown INA 163
Pin 2 = (+) hot / Tip-Ring-Sleeve
each leg, 1 kHz
1 kHz
min gain, 1 kHz
max gain, 1 kHz
mic gain = 50 dB
mic gain = 50 dB, Rs=150Ω 20-20 kHz
1 kHz, Rs = 150Ω
mic gain = 40 dB, +4 dBu, 20-20 kHz
disabled in line mode
2nd-order Linkwitz-Riley
(4.4 cm x 48.3 cm x 13.3 cm)
(1.8 kg)
(11 cm x 52 cm x 35 cm)
(3.6 kg)
MLM 42
MIC/LINE MIXER
Block Diagram
PHANTOM POWER
+15
OFF
2
MIC
+
3 -
+6 dB TO OFF
MID HIGH
3-BAND
TONE CONTROL
1
CH 1 INPUT
LO
USE ONE INPUT ONLY
LINE
CH 1
LEVEL
OL
+0
OL
PHANTOM POWER
+15
OFF
MIC
SEND
MIC GAIN 12 TO 56 dB
LINE GAIN 0 TO 12 dB
2
+
3 -
RETURN
3-BAND
TONE CONTROL
1
CH 2 INPUT
USE ONE INPUT ONLY
LINE
EFFECTS
WET/DRY
PAN
+0
+6 dB TO OFF
LO MID HIGH
CH 2
LEVEL
MASTER
LEVEL
OL
+0
MIC GAIN 12 TO 56 dB
LINE GAIN 0 TO 12 dB
A
UNBALANCED
OUTPUT
PHANTOM POWER
+15
MIC
2
LO
+
3 -
3-BAND
TONE CONTROL
1
CH 3 INPUT
+0
+6 dB TO OFF
MID HIGH
USE ONE INPUT ONLY
LINE
LINE
CH 3
LEVEL
OL
+6 dB
MIC GAIN 12 TO 56 dB
LINE GAIN 0 TO 12 dB
B
MIC
40 dB
MIC
PAD
BALANCED
OUTPUT
+
3
2
1
PHANTOM POWER
+15
OFF
2
MIC
CH 4 INPUT
LINE
+
3 -
LO
+6 dB TO OFF
MID HIGH
3-BAND
TONE CONTROL
1
USE ONE INPUT ONLY
CH 4
LEVEL
OL
MIC GAIN 12 TO 56 dB
LINE GAIN 0 TO 12 dB
Accelerated-SlopeTM Tone Controls
Rane’s patented tone control technology produces steeper
slopes than normal, thus allowing boost/cut of high and low
frequencies without disturbing the critical midband frequencies.
The MLM 42 features full-cut Tone Controls, allowing much
greater contouring than possible with regular controls.
Data Sheet-
MLM 42
MIC/LINE MIXER
Rear Panel
MLM 42
POWER
MADE IN U.S.A.
RANE CORP.
ACN 001 345 482
EFFECTS
OUTPUT
A
RETURN
B
750mA
CLASS 2 EQUIPMENT
BALANCED
LINE MIC
UNBALANCED
4
SEND
LINE
UNBALANCED
B
A
L
A
N
C
E
D
OR
3
GAIN
MIC
ON
PHANTOM
POWER
LINE
INPUTS
B
A
L
A
N
C
E
D
OR
2
GAIN
MIC
ON
PHANTOM
POWER
LINE
B
A
L
A
N
C
E
D
OR
1
GAIN
MIC
ON
PHANTOM
POWER
LINE
B
A
L
A
N
C
E
D
OR
GAIN
MIC
ON
PHANTOM
POWER
Architectural Specifications
The mixer shall be a high performance mic/line mixer
featuring four balanced, studio-grade microphone inputs. XLR
connectors shall be provided for mic-level input. TRS switching
jacks shall be provided for line-level input. Use of the TRS jacks
shall automatically set the preamplifier gain structure for linelevel input and defeat phantom power. Each of the four inputs
shall feature input gain control, overload indicator, three-band
Accelerated-Slope™ equalizer and a Level control. The mixer shall
have a post-mix effects loop with Wet/Dry pan control. A single
master Level control shall control two unbalanced and two
balanced outputs. Unbalanced output jacks shall be RCA type.
Balanced outputs shall employ one XLR and one ¼" TRS jack.
Each balanced output shall provide an additional 6 dB of gain
and deliver a minimum signal level of +24 dBu into a 10k ohm
load. The balanced outputs shall be capable of operating at mic
level with a maximum output of –16 dBu.
XLR inputs shall operate in mic mode with a gain range of
+12 dB to +50 dB. Each microphone input shall operate with or
without 15 volt phantom power. ¼" TRS inputs shall operate
at line-level with a gain range of 0 to 12 dB. If the Line input is
inserted, phantom power shall be defeated.
The mixer shall feature an external RS 1 power supply
capable of operating from 100, 120 or 230 VAC mains, 50-60
Hz. The unit shall meet UL/CSA and CE requirements. The
unit shall be constructed of cold-rolled steel and mount into a
standard 19" 1U EIA rack.
The unit shall be a Rane MLM 42 Mic/Line Mixer
Available Accessories
• SC 1.7 Single Space Security Cover
©Rane Corporation
Data Sheet-
All features & specifications subject to change without notice. DOC 107609
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