OWNER’S MANUAL
MPM 4130
4 CHANNEL POWERED MIXER
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WARNING
An equilateral triangle enclosing a lightening flash/arrowhead symbol is
intended to alert the user to the presence of uninsulated “dangerous
voltage” within the product’s enclosure which may be of sufficient
magnitude to constitute a risk of electric shock.
ATTENTION: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
An equilateral triangle enclosing an exclamation point is intended to alert
the user to the presence of important operating and service instructions in
the literature enclosed with this unit.
IMPORTANT SAFETY INSTRUCTIONS
When using this electronic device, basic precautions should always be taken, including the following:
1. Read all instructions before using the product.
2. Do not use this product near water (e.g., near a bathtub, washbowl, kitchen sink, in a wet basement, or near a swimming
pool, etc.).
3. This product should be used only with a cart or stand that will keep it level and stable and prevent wobbling.
4. This product, in combination with headphones or speakers, may be capable of producing sound levels that could cause
permanent hearing loss. Do not operate for a long period of time at a high volume level or at a level that is uncomfortable.
If you experience any hearing loss or ringing in the ears, you should consult an audiologist.
5. The product should be positioned so that proper ventilation is maintained.
6. The product should be located away from heat sources such as radiators, heat vents, or other devices
(including amplifiers) that produce heat.
7. The product should be connected to a power supply only of the type described in the operating instructions or as marked on the
product. Replace the fuse only with one of the specified type, size, and correct rating.
8. The power supply cord should: (1) be undamaged, (2) never share an outlet or extension cord with other devices so that the
outlet’s or extension cord’s power rating is exceeded, and (3) never be left plugged into the outlet when not being used for
a long period of time.
9. Care should be taken so that objects do not fall into, and liquids are not spilled through, the enclosure’s openings.
10. The product should be serviced by qualified service personnel if:
A.
B.
C.
D.
E.
The power supply cord or the plug has been damaged.
Objects have fallen into, or liquid has been spilled onto the product.
The product has been exposed to rain.
The product does not appear to operate normally or exhibits a marked change in performance.
The product has been dropped, or the enclosure damaged.
11. Do not attempt to service the product beyond what is described in the user maintenance instructions. All other servicing should
be referred to qualified service personnel.
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INSTALLATION
To ensure years of enjoyment from your NADY AUDIO MPM 4130, please read and understand this manual thoroughly before
using the unit.
INSPECTION
Your MPM 4130 was carefully packed at the factory in packaging designed to protect the units in shipment. Before installing and using
your unit, carefully examine the packaging and all contents for any signs of physical damage that may have occurred in transit.
(Note: Nady Systems is not responsible for shipping damage. If the unit is damaged, do not return to us, but notify your dealer and the
shipping company immediately to make a claim. Such claims must be made by the consignee in a timely manner.)
CONTENTS:
• Instruction manual
• MPM 4130 (verify that the unit’s serial number is same as shown on shipping carton)
• AC Power cord
• Warranty Card
POWER CONNECTION
The MPM 4130 has an internal power supply and is designed to operate from an external AC source. Power requirements for electrical
equipment differ from area to area. Be sure to confirm that the voltage selected by the voltage selector switch on the back panel is
proper for your area (120VAC/60 Hz or 230VAC/50Hz) per the information below:
Europe (except UK): 230V, 50Hz
UK and Australia: 240V, 50Hz
USA and Canada: 120V, 60 Hz
For other areas, please check with local authorities.
When ready to operate, plug the AC cord into the power source. Make sure that the unit is turned off before connecting to the AC
power source to avoid possible loud transients which can damage your speakers or your ears, especially when monitoring with
headphones.
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FRONT CONNECTIONS
(6)
(2)
(1)
(7)
(6a)
(6b)
(6c)
(3) (4) (5)
(8)
(9)
(10)
FRONT PANEL
Note: 1 through 5 below are referenced to Channel 1. The other 3 Channels are identical.
(6) DIGITAL DELAY
(1)
LOW EQ
The signal from the input channels, processed by the built-in digi-
tal delay will feed to the master output. There are three knobs
here to control the effect of the delay.
(6a) SWITCH
The control shelving response giving 15dB of boost or cut at
80Hz. Add warmth to vocals or extra punch to guitars, drums and
synths by turning to the right. Turn to the left to reduce stage
rumble, hum or to improve a mushy sound.
This push button switches the delay effect ON/OFF.
(6b) LEVEL
(2)
HIGH EQ
This knob adjusts the mix level of the effect sound.
(6c) TIME (ms)
Turn to the right to boost high frequencies, adding crispness too
percussion from drum machines, cymbals and synths. Turn to the
left to cut these frequencies, reducing sibilance or hiss. The con-
trol has a shelving response giving 15dB of boost or cut at
12kHz.
This knob selects 80ms, 120ms, 160ms, or 200ms of
delay as desired for your intended effect.
(7)
POWER ON LED INDICATOR
Indicates when the unit is ON.
(3)
LEVEL CONTROL
The Level Control determines the proportion of the channel signal
in the mix, and provides a clear visual indication of channel level.
(8)
TAPE IN CONTROL
This knob adjusts the level of signal from the TAPE IN (10) to the
Main bus.
(4)
MIC/LINE INPUT
The MIC/LINE is via a combo connector, which allows the con-
nections of XLR or 1/4” type phone jack. Please use a low imped-
ance microphone and a properly wired cable for best results,
When the 1/4” phone jack is plugged into the combo connector,
the connection can be either a microphone or line level signal.
(9)
MASTER CONTROL
This adjusts the final level of the Main bus. It controls the Main
bus signal which is output to the speakers.
(10) TAPE IN AND TAPE OUT
The TAPE IN socket allows cassette recorders or CD players to
be added to the Main output. The RECORD OUTPUT, with TAPE
phone sockets, provides signal output to a cassette deck and
Home audio equipment. The nominal output level and impedance
are -10dBV/600 ohms.
(5)
DIGITAL DELAY (DD)
This knob determines the signal level which will be sent to the
built-in DIGITAL DELAY Effect (6) control
5
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REAR CONNECTIONS
(14)
(12) (11)
(15)
(13)
REAR PANEL
(15) MAIN OUT/AMP IN
(11) POWER SWITCH
This unbalanced insert point is a break between the main out and
the mixer main signal and the main amplifier. This insert is a 1/4”
TRS phone jack which is normally bypassed. When a 1/4” TRS
phone plug is inserted, the signal path is broken. Depending on
the wiring of the plug inserted into this jack, the MPM 4130 can
be used as either a mixer for a power amplifier or as a power
amplifier for an external input line level signal from a preamp or
mixer. Alternatively the jack can be used as an insert point for an
external effects device to process the output signal from the mixer
section of the MPM 4130 and return it pre the power amplifier
output. (See BLOCK DIAGRAM on page 10).
Turns the unit ON or OFF. Always turn level controls down before
turning on the unit.
(12) VOLTAGE SELECTOR SWITCH
For selecting the proper voltage (115/230VAC) to match the
power supply in your area.
Note: To avoid damage to your unit, always make sure this switch
is set to the correct supply voltage. Damage caused by improper
use is not covered by the warranty.
(13) POWER CONNECTOR WITH FUSE HOLDER
This standard IEC power cord receptacle is used to connect the
AC power to your unit. It features a built-in fuse holder for a
5X20mm, (4A/250V for 115VAC, and 2A/250V for 230VAC
operation) fast-blow fuse. If the fuse continuously blows, shut off
the unit and have it serviced by qualified service personnel.
(14) MONO SPEAKER OUTPUTS
Two 1/4” (6.3mm) jacks, each powered by its own separate
amplifier output stage, for connecting one or two 8 ohms speaker
cabinets.
CAUTION: Do not overload the MPM 4130 with speaker loads
less than 4 ohms as this will degrade performance and may
harm the unit.
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APPLICATIONS
SPEAKERS
FRONT OF HOUSE SPEAKERS
MPM 4130
VOCAL MIC
AUDIO CASSETTE
DVD/CD PLAYER
Guitar
MIC LEVEL SOURCES
KEYBOARD,SYNTHESIZER,SAMPLER
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APPLICATIONS
MPM 4130
8
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SPECIFICATIONS
POWER AMP, MAX. OUTPUT POWER IN WATTS (RMS)
Number of Power channels..................................................................................................................................................................... 1
8Ω .................................................................................................................................................................................................... 100W
4Ω .................................................................................................................................................................................................... 130W
INPUTS
Balanced mono Mic/Line channels ......................................................................................................................................................... 4
2T input ................................................................................................................................................................................................... 1
OUTPUTS
Main out .........................................................................................................................................................................TRS, unbalanced
CHANNEL STRIPS
Volume controls ..............................................................................................................................................................................Rotary
MASTER SECTION
Rotary Fader .................................................................................................................................................................................. Master
BUILT-IN DIGITAL EFFECT .............................................................................................. Digital Delay (80ms, 120ms, 160ms, 200ms)
NOISE (20Hz to 20KHz bandwidth, line Master output)
Master output, all faders down......................................................................................................................................................... -82dB
Power amp output, all faders down.................................................................................................................................................. -55dB
THD
Power output, 20Hz to 20KHz.................................................................................................................................... <0.1% @100W/4Ω
CROSSTALK (1KHz @ 0dBu, 20Hz to 20KHz Bandwith, channel in to master output)
Channel fader down .......................................................................................................................................................................<-65dB
FREQUENCY RESPONSE (Mic input to output)
20Hz ~ 20KHz, line level o/p @ +4dBu into 600 Ω .......................................................................................................................... ±2dB
20Hz ~ 20KHz, power amp o/p 1 watt into 8 Ω ................................................................................................................................ ±2dB
SENSITIVITY @ MIXER OUTPUT +4dBu
Mic/Line ................................................................................................................................................................................. -42dB/-22dB
Tape in ............................................................................................................................................................................................. -10dB
CHANNEL EQUALIZATION
Low EQ ............................................................................................................................................................................. 80Hz (+/-15dB)
Hi EQ ............................................................................................................................................................................. 12KHz (+/-15dB)
MICROPHONE PREAMP E.I.N. (150Ω Terminated, max. Gain)............................................................................................ <-102dBm
POWER CONSUMPTION.......................................................................................................................................................... 130 watts
POWER REQUIREMENTS.................................................................................................................. 100-120, 220-240 VAC, 50-60 Hz
FUSING................................................ 5x20mm glass type, 4A/250V for 115VAC, and 2A/250V for 230VAC operation, fast-blow fuse
DIMENSIONS (W x H x D) ................................................................................................ 17.52” x 8.62” x 5.87” (445 x 219 x 149 mm)
WEIGHT ......................................................................................................................................................................... 18.45 lbs (8.4kg)
The specifications above are correct at the time of printing of this manual. For improvement purposes, all specifications for this unit,
including design and appearance, are subject to change without prior notice.
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BLOCK DIAGRAM
10
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NOTES
11
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SERVICE FOR YOUR NADY AUDIO PRODUCT
(U.S.) Should your NADY AUDIO product require service, please contact the Nady Service Department via telephone
at (510) 652-2411, or e-mail at [email protected].
(International) For service, please contact the NADY AUDIO distributor in your country through the dealer from
whom you purchased this product.
DO NOT ATTEMPT TO SERVICE THIS UNIT
YOURSELF AS IT CAN BE DANGEROUS AND
WILL ALSO VOID THE WARRANTY.
NADY SYSTEMS, INC. • 6701 SHELLMOUND STREET, EMERYVILLE, CA 94608
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