POWERED MIXER
DIGITAL ECHO EFFECT
ECHO LEVEL
ECHO LEVEL
ECHO LEVEL
ECHO LEVEL
ECHO VOL
MPM 480
4-CHANNEL POWERED MIXER
OWNER’S MANUAL
REPEAT
MPM 480
4-CHANNEL POWERED MIXER
Congratulations!
You have just purchased one of the finest professional powered mixers on the market today. This mixer was developed
using the expertise of professional sound engineers and
working musicians. You will find your new NADY AUDIO
mixer has superior performance and greater flexibility than
any other mixer in its price range.
Date of Purchase
Dealer’s Name
City
State
Zip
We recommend that you read this manual carefully to get
the most out of your new unit. Thanks for selecting NADY
AUDIO and the MPM 480 as your choice in powered mixers.
Model #
Serial #
Features
The rugged MPM 480 is ideal for many applications and
includes a mixer, equalizer, digital effects unit and power
amp–all in a lightweight, compact, portable and simple-tooperate unit.
CONTENTS
Features ..........................................................................2
Warning ............................................................................3
Controls and Connections................................................4
• 4 mono inputs, both balanced XLR MIC IN (with 15 V
phantom power) and 1/4" unbalanced LINE IN
• Rear panel CD/TAPE RCA jacks for additional 5th
music source (stereo) input with separate volume control
• 2 speaker output jacks–80W peak music power
@ 8 Ω each (100 W @ 4 Ω) with separate output
power amplifiers
• Built-in digital echo/reverb
• Volume, bass, treble, and delay gain controls for each
channel
• Master section with CD/Tape volume, master volume,
and digital echo/reverb volume, depth and time (echo
repeat) controls
• Rear panel Send and Return effects loop jacks for
external effects
• Convection cooling for quietest operation
• Voltage select switch for operation at either
115 or 230 VAC
• Weighs only 17.6 lbs (8 Kg)
2
Specifications ..................................................................6
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.
The power supply cord or the plug has been damaged.
B.
Objects have fallen into, or liquid has been spilled onto the product.
C. The product has been exposed to rain.
D. The product does not appear to operate normally or exhibits a marked change in performance.
E.
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.
3
Controls & Connections
6
3
4
11
12
13
DIGITAL ECHO EFFECT
ECHO LEVEL
1
ECHO LEVEL
5
2
ECHO LEVEL
ECHO LEVEL
ECHO VOL
10
REPEAT
7
8
9
FRONT PANEL
Note: 1 through 6 below are referenced to Channel 1. The other 3 Channels are identical.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
4
LINE INPUT
1/4" (6.3mm) jack for a mono signal line level input
CHANNEL VOLUME CONTROL
Adjusts the channel output level
TREBLE CONTROL
Adjusts the amount of treble in the signal with cut/boost range of -/+15 dB
BASS CONTROL
Adjusts the amount of bass in the signal with cut/boost range of -/+ 15 dB
MIC INPUT
Balanced XLR input jack [Pin 1 = Ground, Pin 2 = Hot (+), Pin 3 Cold (-)].
ECHO LEVEL CONTROL
Controls the amount of echo/reverb in the channel signal
MASTER VOLUME CONTROL
Adjusts the level of the master signal. If the Send/Return effects loop is connected to an external effects
device, that unit's level controls will determine the final volume [see also RETURN JACK (15) below]
POWER SWITCH
Turns the unit ON or OFF. Always turn level controls down before turning on the unit.
POWER ON LED INDICATOR
Indicates when the amplifier is ON.
CD/ TAPE VOLUME CONTROL
Adjusts the level of the signal input to the stereo CD/TAPE RCA jacks (17) in the output master signal.
ECHO VOLUME CONTROL
Adjusts the level of the digital echo effects volume in the output master signal.
DEPTH CONTROL
Adjusts the amount of depth in the echo signal. Turning this control clockwise changes the echo/reverb
effect in a manner similar to increasing the size of a room in which you are getting natural echo/reverb.
Experiment to find desired effect.
REPEAT CONTROL
Adjusts the length and number of repeats in the echo signal. At "0" you will get a single echo with depth
determined by the setting of the Depth control (12). As you adjust the control clockwise toward "10", you
will get an increasing number of repeats for a longer time and also the interval between repeats will widen.
Experiment to find desired effect.
19
FUSE 2A
SLOBLO
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
FUSE
RISOUE DE CHOC ELECTRIOUE
NE PAS OUVRIR
IN
115/230VAC
AC
CD / TAPE
20
18
17
SPEAKER
16
CAUTION:
TO PREVENT ELECTRIC SHOCK. DO NOT REMOVE CHASSIS.
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK REPLACE
ONLY WITH SAME TYPE FUSE AND RATING. DO NOT EXPOSE
THIS POWERED MIXER TO RAIN OR MOISTURE.
EFFECTS LOOP
RETURN
SEND
15
14
REAR PANEL
14. SEND JACK
1/4"/6.3mm TS phone jack. Connects the MPM 480 to the input of the external effects unit. The Send/Return
effects loop utilizes the signal from the master mixer and is before the amplifier. Normally, with no plug in the
Send jack, this master signal is routed straight through to the amplifier. If a plug is connected to the Send
jack, it will interrupt the master signal, and the signal must be routed back through the Return jack (after processing by the external effects device) or there will be no signal to the amplifier. When using the Send/Return effects loop, set the final volume of the MPM 480 with the output level control of the effects device
being used.
15. RETURN JACK
1/4"/6.3mm TS phone jack. Connects the MPM 480 to the output of the external effects unit. The volume of
the MPM 480 is controlled by the level input to the return jack, which is just before the amplifier, and so is
adjusted by the volume control of the effects device being used in the Send/Return effects loop.
16. MONO SPEAKERS OUTPUTS
Two 1/4" (6.3mm) jacks, each powered by its own separate amplifier output stage, for connecting one or two
8 Ω speaker cabinets.
CAUTION: Do not overload the MPM 480 with speaker loads less than 4 Ω as this will degrade
performance and may harm the unit.
17. CD/TAPE JACKS
Two RCA jacks for inputting a stereo signal from a tape or CD source. This signal is mixed into the master
signal with the CD/Tape volume control (10). Although the input signal may be stereo, it will be
automatically mixed into a mono signal for amplification by the MPM 480, so relative balancing of left and
right signals must be done by the stereo level controls of the source output. This CD/Tape input is, in effect, a
5th input to the MPM 480 and allows added flexibility in mixing in external music sources.
18. POWER CORD CONNECTOR
This standard IEC receptacle is used to connect the AC power source to your powered mixer. Power
requirements: 115VAC or 230VAC (see 20 below)
19. FUSE HOLDER
When the fuse blows, replace it with the same type fuse, size and power rating (see SPECIFICATIONS).
If it continuously blows, stop using the unit and have it serviced by qualified personnel.
20. VOLTAGE SELECTOR SWITCH
For selecting the proper voltage (115/230VAC) to match the power supply in your area.
5
Specifications
Output Power:
80 W music peak power at 8 Ω, 100 W at 4 Ω,
each speaker output
Frequency Response:
30 Hz - 13 KHz +/-3 dB
Total Harmonic Distortion (THD) + Noise:
< 0.85%
Inputs (max. sensitivity/impedance):
4 X MIC: 6 mV / 1 KΩ
4 X Line: 60 mV / 15 KΩ
1 X Return: 800 mV / 15 KΩ
2 X CD/TAPE: 300 mV / 25 KΩ
Outputs (max.out/impedance):
1 X Send: 850 mV / 100 K
Power Supply:
115 (60 Hz) / 230 (50 Hz) VAC, selectable
Fuse:
2 A / 250 V 5 x 20mm, glass type, slow blow
Dimensions:
18.9” X 10.4” X 11” (48 X 26.5 X 28 cm)
Weight:
17.6 lbs (8 Kg)
For improvement purposes, specifications and design are subject to change without prior notice.
6
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 service@nadywireless.com.
(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 ALSO WILL VOID THE WARRANTY.
NADY SYSTEMS, INC. • 6701 SHELLMOUND STREET, EMERYVILLE, CA 94608
Tel: 510.652.2411 • Fax: 510.652.5075 • www.nadywireless.com