Rane MLM42S User manual

MLM42S
MIC / LINE MIXER
2
2
2
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RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
To reduce the risk of electrical shock, do not open the unit. No user
serviceable parts inside. Refer servicing to qualied service personnel.
e symbols shown below are internationally accepted symbols
that warn of potential hazards with electrical products.
is symbol indicates that a dangerous voltage
constituting a risk of electric shock is present
within this unit.
is symbol indicates that there are important
operating and maintenance instructions in the
literature accompanying this unit.
WARNING
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, registers, stoves, or other apparatus (including ampliers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A
grounding-type plug has two blades and a third grounding prong. e wide blade or third prong is provided for your safety. If the provided plug
does not t into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord and plug from being walked on or pinched particularly at plugs, convenience receptacles, and the point where it exits from
the apparatus.
11. Only use attachments and accessories specied by Rane.
12. Use only with the cart, stand, tripod, bracket, or table specied by the manufacturer, or sold with the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualied service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply
cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does
not operate normally, or has been dropped.
15. e plug on the power cord is the AC mains disconnect device and must remain readily operable. To completely disconnect this apparatus from
the AC mains, disconnect the power supply cord plug from the AC receptacle.
16. is apparatus shall be connected to a mains socket outlet with a protective earthing connection.
17. When permanently connected, an all-pole mains switch with a contact separation of at least 3 mm in each pole shall be incorporated in the
electrical installation of the building.
18. If rackmounting, provide adequate ventilation. Equipment may be located above or below this apparatus, but some equipment (like large power
ampliers) may cause an unacceptable amount of hum or may generate too much heat and degrade the performance of this apparatus.
19. is apparatus may be installed in an industry standard equipment rack. Use screws through all mounting holes to provide the best support.
WARNING: To reduce the risk of re or electric shock, do not expose this apparatus to rain or moisture. Apparatus shall not be exposed to dripping
or splashing and no objects lled with liquids, such as vases, shall be placed on the apparatus.
NOTE: is equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
ese limits are designed to provide reasonable protection against harmful interference in a residential installation. is equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment o and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
CAUTION: Changes or modications not expressly approved by Rane Corporation could void the user's authority to operate the equipment.
is Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
WARNING: is product may contain chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm.

MLM42S
MIC / LINE MIXER
OPERATORS MANUAL
QUICK START
Sure this seems like a simple enough box. 4 Inputs, 2 Outputs
and an Eects Loop. Fine. But at least read this section to get
the best signal out of your unit and avoid potential problems.
We'll be quick, promise!
Each Input section features microphone-level XLR and line-
level ¼" TRS Inputs. Use only one Input for each channel. Both
Inputs are balanced.
If you are using condenser mics, ip the PHANTOM
POWER switches to the ON position. For dynamic mics and
line-level devices, leave these switches OFF. Phantom Power only
aects the XLR Inputs, not the ¼" TRS Inputs.
WEAR PARTS: is product contains no wear parts.
OFF
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OFF
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OFF
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OFF
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OFF
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OFF
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OFF
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OFF
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LOW
HIGH
MID
LOW
HIGH
MID
LOW
HIGH
MID
LOW
HIGH
MID
OUTPUT
EFFECTS
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
OL
OL
OL
OL
OL
DRY
WET
POWER
1
2
3
4
MLM42S
MIC/LINE MIXER
If an Input Overload indicator lights, this is your clue to
turn down its GAIN trim on the rear of the unit.
e Output Overload indicator shows the sum of the 4 In-
put channels, but is located before the OUTPUT LEVEL con-
trol. erefore, the OUTPUT LEVEL control cannot correct
an Output Overload condition. Instead, turn down the LEVEL
of one or more of the Input channels. e Output Overload
indicator should remain o.
e OUTPUT MIC/LINE switch changes the balanced
XLR and TRS Outputs to either LINE-level or MIC-level. Be
aware of what sort of signal your mixer or amplier wants to see
before you scare yourself.

Manual-2
FRONT PANEL DESCRIPTION
1LOW / MID / HIGH tone controls on each input channel are Accelerated-Slope™, delivering more control, constant phase re-
sponse, and less interaction between bands than normal tone controls. e LOW/MID corner frequency is 300 Hz. e MID/
HIGH corner frequency is 4 kHz. Each band allows 6 dB of boost and full cut.
2Input Overload indicators should remain o during the loudest expected program material. If you see one light up, turn down
the rear panel Input GAIN.
3Input LEVEL controls set the volume for each channel. ese work along with the rear panel GAIN controls for maximum
signal. To achieve the smoothest mix possible, set the GAIN control on the rear panel to allow near full range operation of the mix
Level control without lighting up the Input Overload indicator.
4EFFECTS DRY / WET control adjusts the mix between the sum of the four Inputs (DRY) and the Eects Return jack (WET).
When used with an external eects processor, the DRY/WET pan control adjusts how much processed, versus unprocessed, signal
appears in the nal output mix. See the EFFECTS LOOP section on page Manual-4 for more uses.
5Output Overload indicator is located before the Output Level control. erefore, the Output Level control cannot be used to
correct an Output Overload condition. An Output Overload condition is corrected by turning down one or more of the Input
LEVELs. Your goal is to keep this indicator o.
6OUTPUT LEVEL control determines the level going to all Outputs.
7POWER indicator. When the yellow LED is lit, the MLM42S is ready to go.
OFF
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OFF
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OFF
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OFF
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OFF
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LOW
HIGH
MID
LOW
HIGH
MID
LOW
HIGH
MID
LOW
HIGH
MID
OUTPUT
EFFECTS
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
OL
OL
OL
OL
OL
DRY
WET
POWER
1
2
3
4
MLM42S
MIC/LINE MIXER
1 2 53 4 6 7

Manual-3
REAR PANEL DESCRIPTION
1INPUTS 1 through 4 feature MIC-level XLR and LINE-level ¼" TRS connectors. Use only one of these Inputs for each channel.
Both Inputs are balanced. A mono ¼" TS plug may be inserted into the LINE input if necessary, but better results come from a
balanced TRS plug. See the RaneNote, “Sound System Interconnection” included with this manual.
2GAIN trim control sets the inital gain of the Input so the front panel LEVEL control has the most latitude without distortion.
When the XLR MIC Input is used, the range of the GAIN is 12 to 50 dB and Phantom Power may be selected. When the TRS
LINE Input is used, the range of the GAIN is 0 to 12 dB and Phantom Power is disabled.
3PHANTOM POWER switch provides 15 volts to condenser microphones plugged in the MIC Input.
4EFFECTS SEND & RETURN loop connects external eects processors or expands to other mixers. See page Manual-4.
5¼" TRS and XLR Balanced OUTPUT jacks are provided for convenience. Both connectors may be used simulaneously.
6OUTPUT LINE / MIC switch changes both balanced XLR and ¼" TRS Outputs to either LINE-level or MIC-level. Many
DJ mixers have microphone engage and talk-over functions associated with the microphone inputs. By connecting the MLM42S
directly to one of these microphone inputs, you are able to take advantage of these features.
7A & B Unbalanced RCA Outputs provide connection to line-level inputs. e Outputs of A and B are identical.
8Universal Voltage Input: via a miniature IEC 60320 C6 appliance inlet. is mates with an IEC 60320 C5 line cord (USA
domestic). Do not lift the ground connection!
MLM42S
4
1
EFFECTS
OUTPUT
INPUTS
SEND
RETURN
B
UNBALANCED
BALANCED
UNBALANCED
LINE
MIC
MADE IN U.S.A. RANE CORP.
A
ON
MIC
BALANCED
LINE
OR
3
2
PHANTOM
POWER
GAIN
ON
MIC
BALANCED
LINE
OR
PHANTOM
POWER
GAIN
ON
MIC
BALANCED
LINE
OR
PHANTOM
POWER
GAIN
ON
MIC
BALANCED
LINE
OR
PHANTOM
POWER
GAIN
100-240 V
50/60 Hz 7 WATTS
COMMERCIAL
AUDIO
EQUIPMENT
24TJ
R
ACN 001 345 482
8 5 6 4 217 3

Manual-4
4 Mic Mixer, or 2 Mics and a CD Player;
Send to a Recorder, or Return a 5th Input from another mono source.
Connecting two MLM42S's for 8 Mic Inputs
©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5000 USA TEL [phone] FAX [phone] WEB rane.com
EFFECTS LOOP
e Eects loop provides a means of processing the mix of the
four Inputs. Send and Return are unbalanced ¼" TS (tip/sleeve),
so keep cable runs to these jacks as short as possible to avoid hum
and noise (under 10 feet [3 meters]). Typical eects processors
include reverb, gate, compressor, limiter, EQ, etc.
e mix of the four Inputs appears on the EFFECTS SEND
Output. is Output provides the input to the external proces-
sor.
e EFFECTS RETURN Input receives the output from
the eects processor. To prevent loss of signal when a plug is not
installed in the RETURN jack, this jack is a switching type. e
SEND is internally connected to the RETURN when a plug
is not inserted. e DRY/WET pan control allows the user to
control how much processed verses unprocessed signal appears in
the nal output mix.
An alternative use for the EFFECTS loop is for Expand Out-
put and Expand Input. For example, if you wish to use two mix-
ers, the SEND Output of the rst mixer can drive the RETURN
Input of the second mixer. e relative mix level of mixer one
versus mixer two is determined by the DRY/WET pan control of
the second mixer.
Other applications for the EFFECTS loop may use only the
SEND Output or only the RETURN Input. For example, a
drum machine, keyboard or other mono source may be con-
nected to the RETURN Input. e relative mix of the 4 Inputs
versus the source present at the RETURN Input is determined
by the DRY/WET pan control. e SEND may be used as a
direct Output for recording.
IN 1
IN 2
IN 3
IN 4
RETURN
IN 3
IN 4
SEND
OUT A
OUT B
MLM42S
LEFT LINE IN
RIGHT LINE IN
TO
RECORDER
FROM
KEYBOARD
AMPLIFIER OR
MAIN MIXER
MIC
1
MIC
2
MIC
3
MIC
4
OUT A
RCA
OUT B
LEFT LINE IN
RIGHT LINE IN
MIC IN
MAIN MIXER
OUT
XLR
OUT RIGHT
OUT LEFT
CD PLAYER
IN 1
IN 2
IN 3
IN 4
SEND
MLM42S
RECORDER
(CHOOSE ONE,
SEND OR RETURN)
MIC
1
MIC
2
MIC
3
MIC
4
IN 1
IN 2
IN 3
IN 4
RETURN
SEND
MLM42S
MIC
5
MIC
6
MIC
7
MIC
8
OR
(OR)