Nisaando MA-940 User manual

Congratulation &
Thank You for
Purchasing
Nissindo
Products!
OPERATING INSTRUCTIONS
PROFESSIONAL KARAOKE MIXING AMPLIFIER
MA-940
Thank you for purchasing this unit. To
make full and effective use of this unit,
please read this Owner's Manual
carefully before operating it. Please
retain this manual for future reference.
w w w . N i s s i n d o U S A . c o m
5-CHANNEL MIXING KARAOKE AMPLIFIER MA-940
POWER
OFF
ON
DELAY REPEATMIC 1 MIC 2/4 MIC 3/5 CENTER VOL SUB VOL LINE VOL
MICROPHONE VOLUME ECHO EFFECT
BASS MID TREBLE BALANCE
MUSIC TONEMICROPHONE INPUT
MIC 1 MIC 2 MIC 3
MUSIC VOLMIC MASTER VOLECHO VOLKEY CONTROLOUTPUTMIC TONE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
MIN MAX MIN MAX MIN MAX
MIC
EXCITE
5-CHANNEL MIXING KARAOKE AMPLIFIER MA-940
POWER
OFF
ON
DELAY REPEATMIC 1 MIC 2/4 MIC 3/5 CENTER VOL SUB VOL LINE VOL
MICROPHONE VOLUME ECHO EFFECT
BASS MID TREBLE BALANCE
MUSIC TONEMICROPHONE INPUT
MIC 1 MIC 2 MIC 3
MUSIC VOLMIC MASTER VOLECHO VOLKEY CONTROLOUTPUTMIC TONE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
MIN MAX MIN MAX MIN MAX
MIC
EXCITE
MANUAL

2
CONTENTS
INTRODUCTION................................................................................................................................................ 3
SYSTEM FEATURES............................................................................................................................................ 3
SAFETY INSTRUCTIONS.............................................................................................................................. 4~5
SPEAKER CONNECTION METHODS AND INFORMATION....................................................................6
SYSTEM APPLICATIONS................................................................................................................................... 7
• Connecting the Speaker With 5-D PRO Audio........................................................................................... 7
• Connecting the Audio Input Source..................................................................................................................8
• Connecting the Audio Line Pre-out.................................................................................................................... 8
• Connecting the Sound Effects Processor.........................................................................................................9
• Connecting the Subwoofer Line Out & Center Line Out...........................................................................9
• Professional/commercial KTV Use..................................................................................................................... 9
• Connecting the Microphone Effects Processor............................................................................................. 9
• Connecting the Microphone Input..................................................................................................................10
CONTROLS AND FUNCTIONS..................................................................................................................... 11
• Front Panel................................................................................................................................................................11
• Rear Panel................................................................................................................................................................12
• Remote Control.......................................................................................................................................................13
OPERATION......................................................................................................................................................14
PHYSICAL DIMENSIONS............................................................................................................................... 15
SPECIFICATIONS..............................................................................................................................................15
TROUBLESHOOTING............................................................................................................................... 16~17
WARRANTY...................................................................................................................................................... 18
AGENCY REGULATORY NOTICES............................................................................................................... 19
FINAL WORDS TO USER................................................................................................................................20
CONTACT INFORMATION............................................................................................................................ 21
Safety
Applications
Features
Intro
Connection
Troubleshooting
Warranty
Final Words
Notices
Spec
Dimensions
Contact Us
Operating
Amplifier

3
Features
SYSTEM FEATURES
5-CHANNEL MIXING KARAOKE AMPLIFIER
• 5-Channel Mixing Amplifier
• Microphone Equalizer
• Microphone Exciter
• Music Tone controls Bass, Midrange, Treble, and Balance:
music channel provides +/-12dB adjustment for middle and
bass, and +/-10dB adjustment for treble.
• Microphone Echo Effect controls Delay and Repeat
• 7-Steps key control
• Individualized volume control for center speaker and
subwoofer
• Available to adjust frequency 80Hz~250Hz of SUB
channel.
• PC remote control capability
• Smart Audio Input Select (SAIS): priority selection of audio
inputs.
• BGM sensitivity of checking signal.
• Inputs: 5 microphone inputs (3 front and 2 rear) and 3
audio inputs
• Outputs: 3 audio outputs
• Dedicated wireless microphone connection input in 3
groups. The volume of each group can be adjusted
separately, with each group providing +8dB/-12dB adjust
ment for treble, middle, and bass.
• LED indicator for signal output.
• Smart fan
Intro
INTRODUCTION
It’s been a long time coming but Nissindo has finally decided
to expand on its mixing amplifier line. We are thrilled to
introduce the newest 2012 model, the MA-940 Mixing
Amplifier.
Like the products before it, the 2012 model uses the latest
and the most innovative technology to produce the highest
quality sound, the most precise clarity and the strongest
reliability. In addition, we are bringing back a more
traditional approach to the MA-940 that many will
undoubtedly appreciate. The new model is equipped with a
familiar equalizer. The analog equalizer gives users full
control like never before, enabling them to really refine the
settings to their hearts’ content.
The MA-940 Mixing Amplifier features 5D technology. 5D
enables the set up of two main speakers, two rear speakers,
and a center/subwoofer speaker to bring the live experience
to your home. The center speaker and subwoofer come with
their own individualized volume control, bringing a new field
of dynamic for karaoke singing.
You have never experienced live performance like this before.
5-D PRO Audio MA-940 Front View
5-D PRO Audio MA-940 Rear View
VOD
2
BGM
1
DVD
3
AUDIO INPUT TERMINAL
SEND
out
RETU RN
in
AUDIO OUTPUT
LINE P RE
OUT
VOCAL MONITORSUBWOOFER
L
R
MIC 5 INOUTCENT ER SUBWOOFERMIC 4
BGM
SENSITIVITY
REAR MICROPHONE INPUT MICROPHONE EFFECTORREMOTE CENTER POWER
OUTPUT SELECTOR
90 110 120
160
210
250
85
80 Hz
LOW PASS
CENTER LINE OUTSUB LINE OUT
FUS E
POWER CABLE
AC 120V 6 0Hz
GROUP-A
RIG HT
GROUP-B
RIG HT
GROUP-B
LEFT
GROUP-A
LEFT
CENTER
VOCAL
SUBWOOFER
SP EAK ER S OUT PUT
CATION: SYSTEM IMPEDANCE
4~16 Ohm/SPEAKER
SAFETY
MARK
USA 020898-1029536-28ITEMNO. D030906
360120718300
MOD EL NO. : MA-940
CALIFORNIA, UNITED STATES OFAMERICA
E-mail: [email protected]
www.NISSINDOUSA.com
ENGINEERED AND DESIGN INU.S.A.
SERIAL NO.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAU TION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
MUSIC VOLMIC MASTER VOLECHO VOLKEY CONTROLOUTPUT
MIC
EXCITE
MIC TONE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
5-CHANNEL MIXING KARAOKE AMPLIFIER MA-940
POWER
OFF
ON
DEL AY REP EATMIC 1 M IC 2/4 MIC 3 /5 CEN TER VOL SUB V OL LINE VO L
MICROPHONE VO LUME ECHO EFFE CT
BASS MID TREBLE BALANCE
MUSI C TONE
MIN MA X MIN M AX MIN M AX
MICR OPHON E INPUT
MIC 1 MIC 2 MIC 3
THIS AMPLIFIER INCLUDES THE FOLLOW:
• Amplifier: 1 pc
• Remote Control: 1 pc
• Instructional Manual: 1 pc
• Warranty & Registration Card: 1 pc

4
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT
REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS
INSIDE REFER SERVICING TO QUALIFIED PERSONNEL
Safety
AC-POWER CORD INCLUDED120V AC-POWER
Safety
SAFETY INSTRUCTIONS
Please visit our website at NissindoUSA.com for the most
updated information, corrections on errors and changes in
this manual. You may also contact us at toll free at
1-800-318-2218.
1. Read Instructions: All the safety and operation instructions
should be read before this product is operated.
2. Retain Instructions: The safety and operating instructions
should be kept for future reference.
3. Warnings: All warnings on this product in these operating
instructions should be followed.
4. Follow Instructions: All operating and other instructions
should be followed carefully.
5. Water and Moisture: This product should not be used near
water, for example, near a bathtub, washbowl, kitchen sink,
laundry tub, in a wet basement, near a swimming pool,
swamp or salivating St. Bernard dog, etc.
6. Cleaning: Clean only with a dry cloth.
7. Ventilation: This product should be situated so that its
location or position does not interfere with its proper
ventilation. For example, the Component should not be
placed on a bed, sofa, rug, or similar surface that may block
any ventilation openings, or placed in a built-in installation
such as a bookcase or cabinet that may impede the flow of
air through ventilation openings.
8. Heat: This product should be stayed away from heat
sources such as radiators, or other devices producing heat.
9. Power Sources: This product should be connected to a
power supply only of the type described in these operation
instructions or as marked on this product.
10. Power Cord Protection: Power supply cords should be
routed so that they are not likely to be walked upon or
pinched by items placed upon or against them. Please pay
particular attention to cords plugs, convenience receptacles,
and the point where they exit this product.
11. Object and Liquid Entry: Care should be taken so that
objects do not fall on, or liquids are not spilled into this
product.
12. Damage Requiring Service: This product should be
serviced only by qualified service personnel when:
A. The power-supply cord or the plug has been
damaged; or
B. Objects have fallen, or liquid has spilled into this
product; or
C. This product has been exposed to rain; or
D. This product does not appear to operate normally
or exhibits a marked change in performance; or
E. This product has been dropped, or its chassis has
been damaged.
13. Servicing: The user should not attempt to service this
product beyond those means described in this operating
manual. All other servicing should be referred to the Service
Department.
14. To prevent electric shock, do not use this polarized plug
with an extension cord, receptacle or other outlet unless the
blades can be fully inserted to prevent blade exposure.
15. Grounding or Polarization: Precautions should be taken so
that the grounding or polarization means of this product is not
defeated.
16. Power Precaution: Unplug this product during lightning
storms or when unused for long periods of time. Note that this
product is not completely disconnected from the AC power
source when the power switch is in the OFF position.
17. This machine does not exceed the Class A/Class B
(whichever is applicable) limits for radio noise emissions from
digital apparatus as set out in the radio interference
regulations of the US Department of Communications.
AC-POWER SOURCES
This set should be operated only from the type of power
source indicated on the marking label. If you are not sure of
the type of electrical power supplied to your home, consult
your dealer or local power company. For those sets designed
to operate from battery power, or other sources, refer to the
operating instructions.
This unit is designed for use with 120V/60Hz AC. If the area
where you live have different power source, you may need to
use a transformer to convert to 120 Volts AC.
MUSI C VOLMIC MA STER VOLECHO V OLKEY CO NTROLOU TPUT
MIC
EXCITE
MIC TONE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
5-CHANNEL MIXING KARAOKE AMPLIFIERMA-940
POWER
OFF
ON
DELAY REPEA TMIC 1 MIC 2/4 MIC 3 /5 CENTER VOL SUB VOL LINEVOL
MICROPHONE VOLUME ECHO EFFE CT
BASS MID TREBLE BALANCE
MUSIC TO NE
MIN MAX MIN MAX MIN MAX
MICROP HONE INPUT
MIC 1 MIC 2 M IC 3

MUSIC VOLMICM ASTER VOLE CHO VOLKEYC ONTROLOUTPUT
MIC
EXCITE
MICT ONE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
5-CHANNEL MI XING KARA OKE AMPLI FIER MA-9 40
POWER
OFF
ON
DELAY REPEATMIC1 MIC 2/4 MIC 3/5 CENTERVO L SUB VOL LINE VO L
MICROPHONEVOLUME ECHOEFFEC T
BASS MID TREBLE BALANCE
MUSICTONE
MIN MAX MIN MAX MIN MAX
MICROPHONE INPUT
MIC1 MIC2 MIC 3
MUSI C VOLMIC MA STER VOLECHO V OLKEY CO NTROLOU TPUT
MIC
EXCITE
MIC TONE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
5-CHANNEL MIXING KARAOKE AMPLIFIERMA-940
POWER
OFF
ON
DELAY REPEA TMIC 1 MIC 2/4 MIC 3 /5 CENTER VOL SUB VOL LINE VOL
MICROPHONE VOLUME ECHO EFFE CT
BASS MID TREBLE BALANCE
MUSIC TO NE
MIN MAX MIN MAX MIN MAX
MICROP HONE INPUT
MIC 1 MIC 2 M IC 3
5
OVERLOADING
Do not overload wall outlets, extension cords or convenience
receptacles beyond their capacity, since this can result in fire
or electric shock.
An appliance and cart combination
should be moved with care. Quick
stops, excessive force and uneven
surfaces may cause the appliance and
cart combination to overturn.
Do not place the electronic equipment onto the unstable
table or stand. It is because it would fall easily from the
unstable table or stand,
so it may cause
accident including
personal injuries and
damage the equipment.
Please follow our
instructions to install the
equipment, or you may
hire a professional
technician to handle the
installation for safety
purpose.
Do not place the set on an unstable cart, stand, tripod,
bracket, or table. The set may fall, causing serious injury to
a child or an adult and serious damage to the set. Use only
a cart stand tripod, bracket, or table recommended by the
manufacturer.
For the set with a three-wire grounding type ac plug:
This plug will only fit into a grounding-type power outlet.
This is a safety feature. If you are unable to insert the plug
into the outlet, contact your electrician to have a suitable
outlet installed. Do not defeat the safety purpose of the
grounding plug.
120V AC-POWER
Do not store the electronic equipment near water or area
with moisture such as bathroom, kitchen sink, laundry area
and swimming pool, etc.
Do not transport the electronic equipment by yourself if its
weight exceeds 70 pounds. It is recommended that two
people work together to transport the equipment or by using
hand truck and the like.
Do not place the electronic equipment directly under
sunlight or close to the window. It may cause overheat on
the electronic equipment by the sunlight.
Do not block the openings and vents in the cabinet which
is designed for the ventilation of the electronic equipment.
The blocking may cause overheat in the electronic equipment
because of insufficient circulation of air, so it would damage
the electronic equipment.
X
MUSI C VOLMIC MAS TER VOLECHO V OLKEY CO NTROLOUTP UT
MIC
EXCITE
MIC TO NE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
5-CHANNEL MIXING KARAOKEAMPLIFIER MA-940
POWER
OFF
ON
DELAY R EPEATMIC 1 MIC 2 /4 MIC 3/5 CENTER V OL SUBVO L LINE VOL
MICROPHONE VOLUME ECHO EFFECT
BASS MID TREBL E BALANCE
MUSIC TON E
MIN MAX MIN MAX MIN MAX
MICROPH ONE INPUT
MIC 1 MI C 2 MIC 3
MUSIC VO LMIC MAST ER VOLECHO VOLKEYC ONTROLOU TPUT
MIC
EXCITE
MIC TONE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
5-CHAN NEL MIXIN G KARAOKE A MPLIFIE R MA-940
POWER
OFF
ON
DELAY REPEATMIC 1 MIC2/4 MIC 3/5 CENTER VOL SUB VOL LINE VOL
MICROPHONE VOLUME ECHO EFFECT
BASS MID TREBLE BALANCE
MUSIC TONE
MIN MAX MIN MAX MIN MAX
MICROPHONE I NPUT
MIC 1 MIC2 MIC 3
POWER ANTENNA-A CNANNEL-A DISPLAY CNANNEL-B DISPL AY
CHANNEL-A
VOLUME ANTENNA-B
CHANNEL-B
VOLUME
DUALCHA NNEL VHF WI RELESS S YSTEM
RF
AF
FREQ.
5 10 15 20 25 30 35 40
-30 -25 -20 -15 -10 -5 0 PEAK
000.000M
H
Z
MUTE
RF
AF
FREQ.
5 10 15 20 25 30 35 40
-30 -25 -20 -15 -10 -5 0 PEAK
000.000M
H
Z
MUTE

6
1SHIELD
COLD
HOT
2
3
1
2
3
SHIELD
COLD
HOT
2
1
3
SHIELD
COLD
HOT
MALE
FEMALE
Balanced XLR Connectors
XLR TRS
Hot (+) Pin 2 Tip
Cold (
- ) Pin 3 Ring
Shield (Ground) Pin 1 Shield
RING (COLD)
TIP (HOT)
SLEEVE (SHIELD)
SLEEVE RINGRING SLEEVE TIP
TIP
Balanced 1/4” TRS Plug
RING (COLD)
TIP (HOT)
SLEEVE (SHIELD)
SLEEVESLEEVE TIP
TIP
Unbalanced 1/4” TRS Plug
RCA Unbalanced Jack
SLEEVE
SLEEVE
TIP
TIP
SLEEVE
SLEEVE
TIP
TIP
R (right)
L (left)
CONNECTOR INFORMATION
Either banana plug or insert type can be used to connect the
unit to speakers. Be sure to connect red (+) to red (+) and
black (–) to black (–). Otherwise, the sound output would be
180° out of phase and distorted.
Follow these steps if you are inserting the wire directly into
the speaker terminal.
1. Strip off the vinyl covering and twist the tip of the
wire core.
2. Loosen the knob and insert the wire core into the
terminal hole.
3. Tighten the knob to fix the wire core in place.
Do not allow the wire core to protrude or touch other
terminals or wires.
If the cores of differing wires touch, damage may result to
your components.
METHODS OF SPEAKER CONNECTION
1. Insert Type (Poor Connection)
2. Single Banana Plug Type (Better Connection)
SPEAKERS
SPEAKERS
NO GOODGOOD
3. Double Banana Plug Type (Standard Connection)
SPEAKERS
3/4”
19 mm
SPEAKER CONNECTION METHODS AND INFORMATION
Connection

7
CONNECTING THE SPEAKER WITH 5-D PRO AUDIO
GROUP-A
RIGHT
CENTER
VOCAL
GROUP-B
RIGHT SUBWOOFER
GROUP-A
LEFT
GROUP-B
LEFT
Applications
SYSTEM APPLICATIONS
The MA-940 is capable of
driving four main speakers with
the 5-D PRO Audio Technology,
which are grouped in Group-A
and Group-B. We recommend
you to use different size of
speakers for Group-A (10-inch
woofer or bigger) and Group-B
(Center Monitor or Powered
Subwoofer). Under this
arrangement, Group-A speaker
can produce greater music output
in the high and mid range
frequency response while
Group-B speaker can produce
clear vocal response. The mixing
of music and vocal is important to
produce quality sound for singing.
Therefore, the audience can feel
different effects from Group-A and
Group-B speakers.
Please refer to the diagram on the
right for connecting the speakers
to the 5-D PRO Audio system
designed by the NISSINDO
engineering team.
NOTE
If the Center Monitor is
connected but no vocal out. It
is possible that the
Center/Subwoofer Selector
Switch is in the wrong position.
Please double check that it is
in the “Center” position.
CENTER SUBWOOFER
CENTER POWER
OUTPUT SELECTOR
MA-940 5-D PRO Audio
CENTER MONITOR
RIGHT SPEAKER LEFT SPEAKER
LEFT SPEAKER
OR
SUBWOOFER
RIGHT SPEAKER
VOD
2
BGM
1
DVD
3
AUDIO INPUT T ERMINAL
SEND
out
RETURN
in
AUDIOOUTPUT
LINE PRE
OUT
VOCAL MONITO RSUBWOOFER
L
R
MIC5 IN
OUTCENTER SUBWOOFER
MIC4
BGM
SENSITIVITY
REAR MICROP HONE INPU T MICRO PHONE EFF ECTOR
REMOTE CENT ER POWER
OUTPUT SELE CTOR
90 110 120
160
210
250
85
80 Hz
LOW PASS
CENTER LINE O UT
SUB LINE OUT
FUSE
POWER CABL E
AC120V 6 0Hz
GROUP A
RIGHT
GROUP B
RIGHT
GROUP B
LEFT
GROUP A
LEFT
CENTER
VOCAL
SUBWOOFER
SPEAKE RS OUTPU T
CATION:SYSTEM IMPEDANCE
4~16Ohm/SPEAKER
SAFETY
MARK
USA020898-1
029536-28ITEMNO.D030906
360120618300
MODEL NO.: MA -940
CALIFORNIA, UN ITED STAT ES OF AMERI CA
E-mail: suppor t@nissi ndousa. com
www . N I S S I N D O U S A . c o m
ENGINEERED AND D ESIGN IN U. S.A.
SERIAL NO.
TOREDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVECOVER.NO USER SERVICEABLE PARTS INSIDE
REFERSERVICINGTO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISKOFELECTRIC SHOCK
DONOTOPEN
WITHOUTAUTHORIZATION
5-D PRO Audio
MA-940 REAR VIEW
AUX2 PLAYER
GROUP-A RIGHT SPEAKER CS-12
GROUP-A RIGHT SPEAKER CS-12
CENTER / MONITOR
AUX1 PLAYER BGM PLAYER
GROUP-B RIGHT SPEAKER CS-12
GROUP-B LEFT SPEAKER CS-12

8
CONNECTING THE AUDIO INPUT SOURCE
Before connecting the source (i.e. BGM [1], VOD [2] & DVD
[3]), turn off the power for all machine, so it would protect
electric shock and prevent damage to the equipment. To
connect the AV source, firstly connect the audio source to the
mixer input, then connect the video source. Please refer to
the below diagram. To ensure high quality sound and video,
we recommend using high quality cables and connectors.
VOD stands for Video On Demand. It is a type of player
with built-in hard drive capable of storing huge amount of
songs and videos. VOD is an all inclusive software and
hardware management tools. It is controlled by a computer
which contains all the song/video data. The VOD is capable
of handling all the accounting management includes
food/beverage, hourly room rentals, content and distribution
of songs/video on an as needed basis. This is the main
workhorse of the KTV commercial business.
When there’s a humming sound after you turned on the
machine, you may have made a mistake by hooking up the audio
input into the video input, or vice versa.
VOD
2
BGM
1
DVD
3
AUDIO INPUT TERMINAL
SEND
out
RETURN
in
AUDIO OUTPUT
LINE PRE
OUT
VOCAL MONITORSUBWOOFER
L
R
MIC 5 INO UTCEN TER SUBWOOFERMIC 4
BGM
SENSITIVITY
REAR MICROPHONE INPUT MICROPHONE EFFECTORREMOTE CENTER POWER
OUTPUT SELECTOR
90 110 120
160
210
250
85
80 Hz
LOW PAS S
CENTE R LINE OUTSUB LIN E OUT
FUSE
POWER CABLE
AC 120V 60H z
GROUP-A
RIGHT
GROUP-B
RIGHT
GROUP-B
LEFT
GROUP-A
LEFT
CENTER
VOCAL
SUBWOOFER
SPE AKERS OU TPUT
CATION:SYSTEM IMPEDANCE
4~16Ohm/SPEAKER
SAFETY
MARK
USA 020898-1029536-28ITEMNO. D030906
360120718300
MODEL N O.: MA-940
CALIFORNIA,UNITED STATES OF AMERICA
E-mail:[email protected]
www.NISSINDOUSA.com
ENGINEEREDAND DESIGN IN U.S.A.
SERIAL NO.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVECOVER. NO USER SERVICEABLE PARTS INSIDE
REFERSERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISKOF ELECTRIC SHOCK
DONOT OPEN
WITHOUTAUTHORIZATION
MA-940 REAR VIEW
SEND
out
RETURN
in
AUDIO OUTPUT
LINE PRE
OUT
CONNECTING THE AUDIO LINE PRE-OUT [Example 1]
The Audio 1/4” unbalanced cable is a
standard audio signal connection. The XLR
balanced cable is a higher signal quality
connection which we strongly recommend
for best audio performance. However,
both types of connection CAN NOT be
connected at the same time.
INPUT
PIN1: SIGNALGND
PIN2: SI GNAL +
PIN3: SI GNAL –
BRIDGE
PARALLEL
STEREO
50HZ
25HZ
5HZ
OFF
ON
OFF
ON
CH-1 BR IDGE IN
CH-2 BR IDGE IN
SERIAL N O.:
CAUTION
RISK OF ELEC TRIC SHOC K
DO NOT OPEN
BRIDGE
CH-1 OUTPUT
POWER CABLE
FUSE
CH-2 OUTPUT
-
+
CH-1
+
-
+
-
CH-2
SAFETY
MARK
USA020898-11
020898-11
ITEMNO. D030905
CALIFORNIA,UNITED STATES OF AMERICA
E-mail:[email protected]
www.NISSINDOUSA.com
ENGINEEREDAND DESIGN IN U.S.A.
MODE LF FILTER CLIP LIMITER GROUND
POWER AMP REAR VIEW
INPUT
PIN1: SIGNAL GND
PIN2: SIGNAL +
PIN3: SIGNAL –
BRIDGE
PARALLEL
STEREO
50HZ
25HZ
5HZ
CH-1 BRIDGE IN
CH-2 BRIDGE IN
MODE LF FILTER AUDIO (XLR) BALANCE OUTPUT
XLR (MALE) TO RCA CABLE
VOD
2
BGM
1
DVD
3
AUDIO INPUT TERMINAL
L
R
AUDIO
AUDIO
AUDIO
HITBOX [PC/VOD]
2
DVD PLAYER
3
BGM PLAYER
1
NOTE

9
VOD
2
BGM
1
DVD
3
AUDIO INPUT TERMINAL
SEND
out
RETURN
in
AUDIO OUTPUT
LINE PRE
OUT
VOCAL MONITORSUBWOOFER
L
R
MIC 5 INO UTCEN TER SUBWOOFERMIC 4
BGM
SENSITIVITY
REAR MICROPHONE INPUT MICROPHONE EFFECTORREMOTE CENTER POWER
OUTPUT SELECTOR
90 110 120
160
210
250
85
80 Hz
LOW PAS S
CENTE R LINE OUTSUB LIN E OUT
FUSE
POWER CABLE
AC 120V 60H z
GROUP-A
RIGHT
GROUP-B
RIGHT
GROUP-B
LEFT
GROUP-A
LEFT
CENTER
VOCAL
SUBWOOFER
SPE AKERS OU TPUT
CATION:SYSTEM IMPEDANCE
4~16Ohm/SPEAKER
SAFETY
MARK
USA 020898-1029536-28ITEMNO. D030906
360120718300
MODEL N O.: MA-940
CALIFORNIA,UNITED STATES OF AMERICA
E-mail:[email protected]
www.NISSINDOUSA.com
ENGINEEREDAND DESIGN IN U.S.A.
SERIAL NO.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVECOVER. NO USER SERVICEABLE PARTS INSIDE
REFERSERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISKOF ELECTRIC SHOCK
DONOT OPEN
WITHOUTAUTHORIZATION
PROFESSIONAL/COMMERCIAL KTV USE
COMMERCIAL
KTV ROOM
DJ ROOM or
EQUIPMENT ROOM
MA-940 REAR VIEW
REMOTE
THIS CABLE IS OPTIONAL.
PROFESSIONAL KARAOKE
REMOTE CONTROL
静音
MUTE
原唱
MUTL
低音
SUB
混響
REV
回聲
ECHO
混合
MIX
效果
EFF
EFF
話筒
MIC
MIC
音樂
MUSIC
MUSIC
降調 原調
音量
升調
PROFESSIONAL KARAOKE
SYSTEM REMOTE CONTROL
KR-02
The MA-940 was designed with
professional and/or commercial
KTV usage. Hence, the rear panel
has a specially designed
S-terminal connector for remote
control use.
CONNECTING THE SUBWOOFER & CENTER SPEAKER
When connecting a subwoofer to the SUB LINE OUT, be
sure to use Active/Powered subwoofer and not
Passive/Non-powered subwoofer.
XLR TO RCA CABLE RCA TO XLR CABLE
VOCAL MONITORSUBWOOFER
CENTER LINE OUTSUB LINE OUT
OUTPUT
CENTER SPEAKER
OUTPUT
ACTIVE/POWERED SUB
SEND
out
RETURN
in
AUDIO OUTPUT
LINE PRE
OUT
CONNECTING THE MICROPHONE EFFECTS PROCESSOR
INOUT
MICROPHONE EFFECTOR
POWER OUTPUT INPUT
MICROPHONE EFFECTS PROCESSOR
CONNECTING THE SOUND EFFECTS PROCESSOR
INPUT
OUTPUT
POWER OUTPUT INPUT
SOUND EFFECTS PROCESSOR
Don’t take off the “jumpers”
when not using the jacks.
Audio will be disabled
when “jumpers” are wrongly
positioned or unplugged.
JUMPER
Don’t take off the “jumpers”
when not using the jacks.
Audio will be disabled
when “jumpers” are wrongly
positioned or unplugged.
JUMPER
INPUT
OUTPUT

MUSIC VOLMIC MASTER VOLECHO VOLKEY CONTROLOUTPUT
MIC
EXCITE
MIC TONE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
5-CHANNEL MIXING KARAOKE AMPLIFIER MA-940
POWER
OFF
ON
DELAY REPEATMIC 1 MIC 2/4 MIC 3/5 CENTER VOL SUB VOL LINE VOL
MICROPHONE VOLUME ECHO EFFECT
BASS MID TREBLE BALANCE
MUSIC TONE
MIN MAX MIN MAX MIN MAX
MICROPHONE INPUT
MIC 1 MIC 2 MIC 3
VOD
2
BGM
1
DVD
3
AUDIO INPUT TERMINAL
SEND
out
RETURN
in
AUDIO OUTPUT
LINE PRE
OUT
VOCAL MONITORSUBWOOFER
L
R
MIC 5 INOUTCENTER SUBWOOFERM IC 4
BGM
SENSITIVITY
REAR MICROPHONE INPUT MICROPHONE EFFECTORREMOTE CENTER POWER
OUTPUT SELECTOR
90 110 120
160
210
250
85
80 Hz
LOW PASS
CENTER LINE OUTSUB LINE OUT
FUSE
POWER CABLE
AC 120V 60Hz
GROUP-A
RIGHT
GROUP-B
RIGHT
GROUP-B
LEFT
GROUP-A
LEFT
CENTER
VOCAL
SUBWOOFER
SPE A KERS O UTPUT
CATION: SYSTEM IMPEDANCE
4~16 Ohm/SPEAKER
SAFETY
MARK
USA 020898-1029536-28ITEM NO. D030906
360120718300
MODEL NO.: MA-940
CALIFORNIA, UNITED STATES OF AMERICA
E-mail: [email protected]
www.NISSINDOUSA.com
ENGINEERED AND DESIGN IN U.S.A.
SERIAL NO.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
10
CONNECTING THE MICROPHONE INPUT
connect to
MIC. receiver
(REAR MIC. 4)
connect to
MIC. receiver
(REAR MIC. 5)
This jack is for connecting microphones
to input 2 and rear MIC. Input 4. They
are at the same terminal. Rear input is
designed for wireless microphone.
This jack is for connecting microphones
to input 3 and rear MIC. Input 5. They
are at the same terminal. Rear input is
designed for wireless microphone.
Adjust MIC Master Volume to 0 dB before inserting 1/4”
microphone plugs into the MIC inputs to avoid unpleasant
noise and protect your equipment from damage.
NOTE
WIRED MIC. 1 WIRED MIC. 2 GUITAR

11
CONTROLS AND FUNCTIONS
Amplifier
MICROPHONE EQUALIZER
MICROPHONE EXCITE BUTTON
MICROPHONE EXCITE LED INDICATOR
INFRARED SENSOR
SIGNAL OUTPUT LED INDICATOR
MUSIC KEY CONTROL LED INDICATOR
MUSIC KEY CONTROL
ECHO VOLUME
Controls echo effect.
MIC MASTER VOLUME
Controls microphone volume.
MUSIC VOLUME
Controls music volume.
POWER BUTTON ON/OFF
FRONT PANEL:
1
2
3
4
5
6
7
8
9
10
11
MICROPHONE INPUTS (¼ inch SLOT)
MICROPHONE VOLUME
Controls the amount of overdrive or “distortion.” It
increases the internal amplification of the microphone.
ECHO EFFECT
These knobs control the microphone delay and repeat.
DELAY: Delay echo effects.
REPEAT: Number of echo repeat.
MUSIC TONE
BASS: Controls low tones.
MID: Controls mid-range tones.
TREBLE: Controls high tones.
MUSIC BALANCE
Adjusts the music signal for left and right speakers.
CENTER VOLUME
SUB VOLUME
LINE OUT VOLUME
13
14
15
16
17
18
19
12
MUSIC VOLMIC MASTER VOLECHO VOLKEY CONTROLOUTPUT
MIC
EXCITE
MIC TONE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
5-CHANNEL MIXING KARAOKE AMPLIFIER MA-940
POWER
OFF
ON
DELAY REPEATMIC 1 MIC 2/4 MIC 3/5 CENTER VOL SUB VOL LINE VOL
MICROPHONE VOLUME ECHO EFFECT
BASS MID TREBLE BALANCE
MUSIC TONE
MIN MAX MIN MAX MIN MAX
MICROPHONE INPUT
MIC 1 MIC 2 MIC 3
7651 3 9 1082 4
11 14 16 17 18 19
12 1513

12
VOD
2
BGM
1
DVD
3
AUDIO INPUT TERMINAL
SEND
out
RETURN
in
AUDIO OUTPUT
LINE PRE
OUT
VOCAL MONITORSUBWOOFER
L
R
MIC 5 INOUTCENTER SUBWOOFERM IC 4
BGM
SENSITIVITY
REAR MICROPHONE INPUT MICROPHONE EFFECTORREMOTE CENTER POWER
OUTPUT SELECTOR
90 110 120
160
210
250
85
80 Hz
LOW PASS
CENTER LINE OUTSUB LINE OUT
FUSE
POWER CABLE
AC 120V 60Hz
GROUP-A
RIGHT
GROUP-B
RIGHT
GROUP-B
LEFT
GROUP-A
LEFT
CENTER
VOCAL
SUBWOOFER
SPE A KERS O UTPUT
CATION: SYSTEM IMPEDANCE
4~16 Ohm/SPEAKER
SAFETY
MARK
USA 020898-1029536-28ITEM NO. D030906
360120718300
MODEL NO.: MA-940
CALIFORNIA, UNITED STATES OF AMERICA
E-mail: [email protected]
www.NISSINDOUSA.com
ENGINEERED AND DESIGN IN U.S.A.
SERIAL NO.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
2221 23
28 30 33 34 3531
29
REAR MICROPHONE INPUTS (¼ inch SLOT)
Share the same microphone gain controls with MIC 1
and MIC 2 of front panel.
SUBWOOFER LINE OUT
This is a dedicated Subwoofer line out. It is unaffected by
the Center Power Output Selector Switch.
REMOTE INPUT
Connects to VOD control panel.
CENTER POWER OUTPUT SELECTOR: This is a control
switch to select between the center and subwoofer signal
source for the Center/Subwoofer Powered Output
amplification to drive the speaker.
MICROPHONE EFFECTOR
Microphone output jack for extra effector input.
Microphone input jack for extra effector output.
MAIN RIGHT SPEAKER OUTPUT TERMINAL
Dedicated Group-A & Group-B main right channel
powered output.
CENTER/SUBWOOFER SPEAKER OUTPUT:
The output is based on the Center Power Output
Selector. If the existing output lines is not enough to
support the room size greater than the maximum 900
square feet, the amplifier might burn out. Use the
alternative independent “center line out” or “subwoofer
line out” to connect the signal to an external power
amplifier so this unit can be used as a pre-amplifier.
REAR PANEL:
20
21
22
23
24
25
26
MAIN LEFT SPEAKER OUTPUT TERMINAL
Dedicated Group-A & Group-B main left channel
powered output.
BGM SENSITIVITY
Back Ground Music (BGM) signal sensitivity control.
AUDIO INPUT TERMINAL
3 audio input sources: BGM [1], VOD [2], DVD [3]
LINE PRE-OUTPUT
SOUND EFFECT SEND (OUTPUT) & RETURN (INPUT)
Enable connection to reverberation unit, equalizer and
other assisting sound sources. Do not take off the “jumpers”
when not using the jacks. Audio will be disabled when
“jumpers” are wrongly positioned or unplugged.
CENTER LINE OUT
This is a dedicated Center Vocal Monitor line out. It is
unaffected by the Center Power Output Selector Switch.
LOW PASS
SUB channel frequency adjustment from 80Hz-250Hz.
LOW NOISE DUAL UNITS COOLING FAN
POWER CABLE
FUSE
Housing for the power supply fuse.
28
29
30
31
32
33
34
35
36
27
20 24 25 2726
3632

13
#4
#3
#2
#1
MUSIC
VOL
BGM
CHANNEL SELECTION
1
2
3
4
ECHO
VOL
DVD
MIC
VOL
DOWN UP
KEY CHANGE
VOD
MIC
EXCITE
MA-940
REMOTE CONTROL:
INPUT SELECTION: DVD, VOD, BGM
Press this button to select the input source.
MICROPHONE EXCITE
Press this button to enhance microphone effect.
KEY CONTROL:  LOW,  NATURAL,  HIGH
Controls the music key.
ECHO VOLUME
Echo Volume control from 00 to 90.
MUSIC MASTER VOLUME
Music Master Volume control from 00 to 90.
MICROPHONE MASTER VOLUME
Microphone Master Volume control from 00 to 90.
1
2
3
4
5
6
5
4
3
6
2
1
AAA
ALKALINE
BATTERY
AAA
ALKALINE
BATTERY
7
INSERTING BATTERIES
Open the battery compartment cover on the back of the
remote control unit. The cover should open easily if you
press on in with your thumb while sliding it in the
direction of the arrow. Insert two AAA batteries as
shown and slide the cover back on.
USING THE REMOTE CONTROL UNIT
When operating the remote control, point the remote’s
infrared port at the remote sensor “SR” logo on the front
panel. The remote control can be used within a range of
18 feet (6 meters) from the remote sensor, and within
angles of up to 30 degrees.
7
8
SR
8
REMOTE CONTROL SENSOR
30o
30o
18 feet
(6 m)
#4
#3
#2
#1
MUSIC
VOL
BGM
CHANNEL SELECTION
1
2
3
4
ECHO
VOL
DVD
MIC
VOL
DOWN UP
KEY CHANGE
VOD
MIC
EXCI TE
MA-940

14
OPERATION
Operating
FRONT PANEL OPERATION
MICROPHONE INPUT
ADJUSTING THE MICROPHONE VOLUME
MIC 1: This knob controls the volume for microphone 1.
MIC 2/4: This knob controls the volume for microphone 2
(front panel) and microphone 4 (rear panel).
MIC 3/5: This knob controls the volume for microphone 3
(front panel) and microphone 5 (rear panel).
ADJUSTING THE ECHO EFFECT
ADJUSTING THE MUSIC TONE
BASS: Turn the knob clockwise to increase and
counter-clockwise to decrease the bass output.
MID: Turn the knob clockwise to increase and
counter-clockwise to decrease the mid-range output.
TREBLE: Turn the knob clockwise to increase and
counter-clockwise to decrease the treble output.
BALANCE: Adjusts the music output for left and right speakers.
There are two microphone
inputs (1/4” slot) on the
rear panel.
REAR MICROPHONE INPUT
MIC 4 MIC 5
There are three microphone
inputs (1/4” slot) on the
front panel.
MICROPHONE INPUT
MIC 1 MIC 2 MIC 3
There are three knobs under
MIC VOL: MIC 1, MIC 2/4,
MIC 3/5
There are four knobs under
the MUSIC TONE: TREBLE,
MID, BASS and BALANCE.
This knob controls the volume
for MUSIC. Turn the knob
clockwise to increase and
counter-clockwise to decrease
the music volume.
This knob controls the volume
for MICROPHONE. Turn the
knob clockwise to increase and
counter-clockwise to decrease
the microphone volume.
This knob controls the volume
for ECHO. Turn the knob
clockwise to increase and
counter-clockwise to decrease
the echo volume.
ADJUSTING THE CENTER, SUB, LINE VOLUME
CENTER: Turn the knob clockwise to increase and
counter-clockwise to decrease the volume for center speaker.
SUB: Turn the knob clockwise to increase and
counter-clockwise to decrease the volume for subwoofer.
LINE: Turn the knob clockwise to increase and
counter-clockwise to decrease the volume for line-out speaker.
ADJUSTING THE MUSIC VOLUME
ADJUSTING THE MIC MASTER VOLUME
ADJUSTING THE ECHO VOLUME
ECHO VOL
MIN MAX
MIC MASTER VOL
MIN MAX
MUSIC VOL
MIN MAX
CENTER VOL SUB VOL LINE VOL
BASS MID TREBLE BALANCE
MUSIC TONE
DELAY REPEAT
ECHO EFFECT
MIC 1 MIC 2/4 MIC 3/5
MICROPHONE VOLUME
Turn the knob clockwise to increase
and counter-clockwise to decrease the
delay and repeat effects.

15
PHYSICAL DIMENSIONS
Dimensions
DIMENSIONS (WxHxD) 17×5.7×15.8 in / 43×14.5×40 cm
PACKING DIMENSIONS
(WxHxD) 22.1x8.9x17.9 in / 56.1×22.6×45.4 cm
NET WEIGHT 32 Lbs / 14.5 Kg
SHIPPING WEIGHT 35.3 Lbs / 16 Kg
OPTIONAL 19" RACK MOUNT KIT
The Rack Mount kit is optional. Please make sure to get the
right kit size, then put the amplifier into the rack. The rack is
used to protect the amplifier. With such portable equipment,
it is possible to have party at home anytime or use it for
Karaoke rental business.
The Bracket/Handler (optional) is used to hold your audio/video
equipment firmly in place, but not for transportation. If you need
to transport the equipment, we recommend you using the heavy
duty clamping rack shelf (optional) as illustrated in figure. You
should place the heavy duty clamping rack shelf into the
portable case. This would protect your equipment. There are
different sizes of the heavy duty clamping rack shelves to suit
your specific needs. Please note that the bracket/handler, rack
shelf and case are not included in the package. They are
optional items and sold separately.
Side View
H. 5.7”
14.5 cm
D. 15.8” / 40 cm
SPECIFICATIONS
Spec
MOUNTING THE RACK
SHELF PANEL IN A RACK
HEAVY DUTY CLAMPING RACK SHELF
PORTABLE SYSTEM
0dB
Volume
CENTER
5-CHANNEL PO WER AMPLIFIER
POWER
OFF ON
0dB
Volume
Channel-A
Main Left
LIGHT
CUP
SIGNAL
POWER
0dB
Volume
Channel-B
Main Right
LIGHT
CUP
SIGNAL
POWER
0dB
Volume
Channel-C
Rear Left
LIGHT
CUP
SIGNAL
POWER
0dB
Volume
Channel-D
Rear Right
LIGHT
CUP
SIGNAL
POWER
MIC . VOLUM E
VOLMIC R O P H O N E TONE
MIC. INPUT
MIC1 MIC 2
EXCITER
VOLHIGH SUBFRE Q
Hz
MIC1 3 MIC2 4 LOW REAR
TREBLE MID BASS
MOD E ADJUS TAB L E
CENTER
MUSICVOL
20 240
VOL
EXCITER MIC AUDIO SUB INPUT
SR
UP
DOWN
MEMORY
5C HANNEL AUDIO VIDEO EFFECTS PRO CESSOR
MUSIC VOL 10
CDG DVD VOD
POWER
Front View
17”
43 cm
5.7”
14.5 cm
15.8”
40 cm
MUSIC VOLMIC MASTER VOLECHO VOL
KEY CONTROL
OUTPUT
MIC EXCITE
MIC TONE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
5-CHANNEL MIXING KARAOKE AMPLIFIERMA-940
POWER
OFF
ON
DELAY REP EATMIC 1 MIC 2/4 MIC 3/5 CENTER V OL SUB VOL LINE VOL
MICROPHONE VOLUME ECHO EFF ECT
BASS MID TREBLE BALANCE
MUSIC TON E
MIN MAX MIN MAX MIN MAX
MICROPH ONE INPUT
MIC 1 MIC 2 MIC3
INPUT SENSITIVITY/
IMPEDANCE
MIC: 20mV/2k ohm
LINE: 200mV/10k ohm
LOAD IMPEDANCE OUTPUT IMPEDANCE: 4~16 ohm
RECOMMENDATORY IMPEDANCE: 8 ohm
POWER
CONSUMPTION 120V 60Hz, <1300Watts
FREQUENCY
RESPONSE 20Hz~20KHz +/-1dB
STATIC POWER
CONSUMPTION 35 Watts
POWER OUTPUT 3x300W (1kHz, 8 ohm)
THD (1KHz, 100W, 8ohm) 0.02%
EFFECT ECHO
MUSIC PART
BASS Control: 100Hz ± 12dB
MID Control: 1kHz ± 12dB
TREBLE Control: 10kHz ± 12dB
MIC PART
BASS Control: +8dB/-12dB
MID Control: +8dB/-12dB
TREBLE Control: +8dB/-12dB
TONE ELECTRICAL
CIRCUIT
POWER ANTE NA-A CNANNEL-A DISPLAY CNA NNEL-B DISPLAY
CHANNEL-A
VOLUME ANTENA -B
CHANNEL-B
VOLUME
DUAL CHAN NEL VHF WIRE LESS SYSTE M
RF
AF
FREQ.
5 10 15 20 25 30 35 40
-30 -25 -20 -15 -10 -5 0 PEAK
000.000M
H
Z
MUTE
RF
AF
FREQ.
5 10 15 20 25 30 35 40
-30 -25 -20 -15 -10 -5 0 PEAK
000.000M
H
Z
MUTE
MUSIC VOLMIC MASTER VOLECHO VOLKEY CONTROLOUTPUT
MIC
EXCITE
MIC T ONE
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
5-CHANNEL MIXING KARAOKE AMPLIFIER MA-940
POWER
OFF
ON
DELAY R EPEATMIC 1 MIC 2 /4 MIC 3 /5 CENTE R VOL SUB VOL LINE VO L
MICROPHONE VOLUME ECHO EFFECT
BASS MID TR EBLE BALA NCE
MUSIC TO NE
MIN MAX MIN MAX MIN MAX
MICROP HONE INPUT
MIC 1 M IC 2 MIC 3
MUSIC V OLMIC M ASTER VOLECHO VO LKEY CONTROLOUTPU T
MIC
EXCITE
MIC TON E
3
2
1
1
2
3
+12
9
6
3
0dB
–3
–6
–9
–12
+12
9
6
3
0
–3
–6
–9
–12
10KHz5K2.5K1K500250100
5-CHANNEL MIXING KARAOKEAMPLIFIER MA-940
POWER
OFF
ON
DELAY REPEA TMIC 1 MIC 2/4 MIC 3/5 CENTERVOL SUB VOL LINE VOL
MICROPHONE VOLUME ECHO EF FECT
BASS MID TREBLE BALANCE
MUSIC TONE
MIN MAX MIN MAX MIN MAX
MICROPHO NE INPUT
MIC 1 MI C 2 MIC 3

16
TROUBLESHOOTING
1. NO ECHO FROM THE CENTER SPEAKER
CAUSE: CENTER ECHO is turned off.
REMEDY: Turn on CENTER ECHO.
We design this system in such a way that the echo from the
main speakers is independent with that of the center monitor
speaker (which helps the singer monitor his/her own singing).
There is a switch in the rear panel to turn on/off the echo for
the center speaker only. It would not affect the echo function
of the main speakers. Therefore, if you do not hear any echo
from the center speaker, it doesn’t mean that the system is
defective. If you need the echo from the center speaker, you
just turn on the switch in the rear panel.
2. NO VOCAL FROM THE CENTER SPEAKER
3. MIC MASTER VOL & MUSIC VOL MALFUNCTION
SYMPTOM: No change in sound output when adjusting the
MIC MASTER VOLUME and MUSIC VOLUME potentiometers.
CAUSE: Only main speakers are connected.
REMEDY: Connect an external amplifier to Center Monitor
signal out in the rear panel and hook up speakers to the
external amplifier.
The two potentiometers only affect the Center Monitor
signal out, and they have no effect on the main speakers
output.
4. MUSIC VOLUME IS TOO LOW
CAUSE: The music volume limiter is set too low.
REMEDY: Adjust to a higher “Max Music Volume.”
5. MICROPHONE VOLUME IS TOO LOW
CAUSE: The mic master volume limiter is set too low.
REMEDY: Adjust to a higher “Max Mic Master Volume.”
6. NO SOUND FROM SUBWOOFER
CAUSE: SUB is turned off.
REMEDY:
Turn on the SUB: press SUB button two times.
Be sure to adjust the SUB volume to a high enough value.
Check to make sure subwoofer is turned on.
Select SUB for all inputs: press SUB button three times.
7. NO SOUND FROM MICROPHONE
REMEDY:
Be sure mic is turned on
Mic cable is connected properly
Check the mic volume
8. MACHINE HAS NO POWER
REMEDY: Check to see if the power cable is well connected
and that the power switch on the front panel is turned on.
9. BASS ON VOCAL SOUND IS NOT CLEAR
When you sing or make an announcement with the
microphone, there is too much bass. You may be connecting
to the subwoofer improperly. It is because the SUB OUT of this
unit has two different functions: Bass is only for music and not
for vocal.
10. BAD AUDIO OR MICROPHONE SOUNDS
REMEDY:
Check the source of your audio (CD, DVD) to see if it’s scratched.
Check your audio cables or microphone cables.
Use a better audio cable or 3pin XLR mic cable.
11. THERE IS NO PICTURE
REMEDY:
Check to see if your video sources are selected accordingly.
Check to see if you plugged in the video cables.
Check your TV or display monitor.
12. VIDEO IS FLICKERING
REMEDY:
Check to see if the AV cable is damaged.
Use a better AV cable.
We recommend you to connect videos to the TV or monitor
directly for best results.
Troubleshooting
VOCAL VOLUME
from CENTER POWER MONITOR
0 10 20 30 40 50 60 70 80 90 99dB
%
Center Monitor Volume 90%
VOCAL EFFECT: REVERB/ECHO
from CENTER POWER MONITOR
0 10 20 30 40 50 60 70 80 90 99dB
%
Center Monitor Effect 50%
GROUP-A
RIGHT
CENTER
VOCAL
GROUP-B
RIGHT SUBWOOFER
VOCAL
MONITOR
CENTER
LINE OUT
200W
350W
POWERED SUB
CENTER POWER
OUTPUT SELECTOR
CENTER SUBWOOFER
NOTE
CENTER SUBWOOFER
CENTER POWER
OUTPUT SELECTOR
CAUSE: CENTER/SUBWOOFER
switch is incorrectly selected.
REMEDY: Slide the switch to
CENTER position.

VOD
2
BGM
1
DVD
3
AUDIO INPUT TERMINAL
SEND
out
RETUR N
in
AUDIO OUTPUT
LINE PR E
OUT
VOCAL MONITORSUBWOOFER
L
R
MIC 5 INOUTCENTER SUBWOOFERMIC 4
BGM
SENSITIVITY
REAR MICROPHONE INPUT MICROPHONE EFFECTORREMOTE CENTER POWER
OUTPUT SELECTOR
90 110 120
160
210
250
85
80 Hz
LOW PASS
CENTER LINE OUTSUB LINEOUT
FUSE
POWER CABLE
AC 120V 60 Hz
GROU P-A
RIGHT
GROU P-B
RIGHT
GROU P-B
LEFT
GROU P-A
LEFT
CENTER
VOCAL
SUBW OOFER
SPE AKERS O UTP UT
CATION: SYSTEM IMPEDANCE
4~16 Ohm/SPEAKER
SAFETY
MARK
USA 020898-1029536-28ITEMNO. D030906
360120718300
MODEL NO.: MA-940
CALIFORNIA, UNITED STATESOF AMERICA
E-mail: [email protected]
www.NISSINDOUSA.com
ENGINEERED AND DESIGNIN U.S.A.
SERI AL NO.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVECOVER. NO USER SERVICEABLE PARTS INSIDE
REFERSERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISKOF ELECTRIC SHOCK
DONOT OPEN
WITHOUTAUTHORIZATION
VOD
2
BGM
1
DVD
3
AUDIO INPUT TERMINAL
SEND
out
RETUR N
in
AUDIO OUTPUT
LINE PR E
OUT
VOCAL MONITORSUBWOOFER
L
R
MIC 5 INOUTCENTER SUBWOOFERMIC 4
BGM
SENSITIVITY
REAR MICROPHONE INPUT MICROPHONE EFFECTORREMOTE CENTER POWER
OUTPUT SELECTOR
90 110 120
160
210
250
85
80 Hz
LOW PASS
CENTER LINE OUTSUB LINEOUT
FUSE
POWER CABLE
AC 120V 60 Hz
GROU P-A
RIGHT
GROU P-B
RIGHT
GROU P-B
LEFT
GROU P-A
LEFT
CENTER
VOCAL
SUBW OOFER
SPE AKERS O UTP UT
CATION: SYSTEM IMPEDANCE
4~16 Ohm/SPEAKER
SAFETY
MARK
USA 020898-1029536-28ITEMNO. D030906
360120718300
MODEL NO.: MA-940
CALIFORNIA, UNITED STATESOF AMERICA
E-mail: [email protected]
www.NISSINDOUSA.com
ENGINEERED AND DESIGNIN U.S.A.
SERI AL NO.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVECOVER. NO USER SERVICEABLE PARTS INSIDE
REFERSERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISKOF ELECTRIC SHOCK
DONOT OPEN
WITHOUTAUTHORIZATION
17
13. VIDEO SIGNAL OUT RECOMMENDATIONS
REMEDY: If you have more than 2 RCA output to the display,
we recommend you use a signal amplifier. The signal
amplifier will stabilize your video quality. If you have a HDTV
(Plasma, or LCD) video we recommend you directly connect
your source to the video display.
14. POWER CAN NOT BE TURNED ON
REMEDY:
Check to see if your unit is plugged in properly.
Check your power cable.
15. PROTECTION FOR AUDIO/VIDEO EQUIPMENT
Before you hook up or disconnect any audio/video equip-
ment, you must turn off the power for all equipment. Other-
wise, it may cause black spots to appear on the LCD or
Plasma TV screen.
16. HUMMING NOISE
17. AMPLIFIER SHUT DOWN/INTERFERENCE NOISE
CAUSE: The amplifier turned on but there is no music coming
out from the speaker powered output channels.
REMEDY: Make sure that the AC-power supply is connected
to the correct voltage level according to the local market.
18. NOISE AND DISTORTION
When humming noise or displeasing sound appears, you
can replace the supplied power cord with an AC power
cord with a magnetic device as shown in the figure below.
In North America many families own satellite TVs, HD TVs
and cable TV receivers. They may cause interference which
affect both audio and video equipment. The power cord as
shown in figure 2 may help eliminate the humming sound
and enhance TV picture quality.
19. SOUND PROBLEM: No sound.
REMEDY:
Positive and negative of
speaker wire are touching
each other at the terminals.
We recommend using
double banana plugs.
3 prong to 2 prong adaptor
110V~120V
FIGURE 1
Qualit y Power Cord:
105°C 3C/18AWG 300V
FIGURE 2
NOTE
SPEAKERS
Right Position
SEND RETURN
AUDIO OUTPUT
LINE PRE
OUT
Wrong Position
SEND RETURN
AUDIO OUTPUT
LINE PRE
OUT

18
WARRANTY
ONE-YEAR LIMITED WARRANTY FOR HOME USE
EQUIPMENT
Our one-year warranty covers both parts and labors. The
warranty becomes effective from the date of your purchase for
one year.
Our warranty only covers defects due to product
defectiveness with free of defects in materials or workmanship.
However, our warranty does not cover defects due to normal
wears, damage in transit, improper use, abuse or failure to
follow the proper instructions for maintenance. This warranty is
void in the event of unauthorized repairs, alternations,
modifications and removing of the product label.
Please also note that our warranty does not cover any
shipping cost for the return of defective products to us for
inspection, repair and maintenance. Our warranty for
Nissindo products can only be executed in North America.
90-DAY LIMITED WARRANTY FOR PUBLIC AND
COMMERCIAL USE EQUIPMENT
Our 90-day warranty applies to speakers, amplifiers, mixers
and microphones for both public and commercial use such as
restaurant, coffee shop, KTV nightclub, church and school, etc.
It covers both parts and labors. The warranty becomes
effective from the date of your purchase for 90 days.
Our warranty only covers defects due to product
defectiveness with free of defects in materials or workmanship.
However, our warranty does not cover defects due to normal
wears, damage in transit, improper use, abuse or failure to
follow the proper instructions for maintenance. This warranty is
void in the event of unauthorized repairs, alternations,
modifications and removing of the product label.
Please also note that our warranty does not cover any
shipping cost for the return of defective products to us for
inspection, repair and maintenance. Our warranty for
Nissindo products can only be executed in North America.
Warranty
ADDITIONAL NOTES:
1. Limited warranty for home use equipment is only valid in
North America.
2. Limited warranty is valid only if you purchase our products
from our authorized dealers (including both regular retailers
and online retailers) in North America. If you choose to
purchase our products from an authorized dealer, we will not
provide any limited product warranty for you. To protect your
limited product warranty, please purchase our products from
one of our authorized dealers in North America near you.
3. Limited warranty is automatically void if the yellow label
stating “No Warranty After Opening” is removed from the
product.
TO REGISTER YOUR WARRANTY
Please fill out the warranty card that came with your unit,
download or submit online warranty form. However, we
need the invoice for your purchase in order to process this
warranty. You may also register your warranty online.
Please visit our website at www.NissindoUSA.com.

19
AGENCY REGULATORY NOTICES
Federal Communications Commission Notice
These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This
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 off 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 the
receiver.
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
• Consult the dealer or an experienced radio or television
technician for help.
Modifications
The FCC requires the user to be notified that any changes or
modifications made to this device that are not approved may
void the user’s authority to operate the equipment.
Cables
Connections to this device must be made with shielded cables
with metallic RFI/EMI connector hoods to maintain
compliance with FCC rules and regulations.
Materials Disposal
Disposal of this material can be regulated because of
environmental considerations. For disposal or recycling
information, contact your local authorities or the Electronic
Industries Alliance (EIA) (http://www.eiae.org).
Disposal Of Waste Equipment By Users In
Private Households In The European Union
This symbol on the product or on its packaging indicates that
this product must not be disposed of with your other
household waste. Instead, it is your responsibility to dispose of
your waste equipment by handing it over to a designated
collection point for the recycling of waste electrical and
electronic equipment. The separate collection and recycling of
your waste equipment at the time of disposal will help to
conserve natural resources and ensure that it is recycled in a
manner that protects human health and the environment. For
more information about where you can drop off your waste
equipment for recycling, please contact your local city office,
your household waste disposal service or the shop where you
purchased the product.
Japanese Notice
Japanese Power Cord Notice
Japanese Material Content Declaration
A Japanese regulatory requirement, defined by Specification
JIS-C-0950, 2005, mandates that manufacturers provide
Material Content Declarations for certain categories of
electronic products offered for sale after July 1, 2006.
Korean Notice
Recycling Program
The terms and availability of these programs vary by
geography because of differences in regulatory requirements
and local customer demand.
因为在当地的监管要求和客户的需求，这些条件和程序的情
况不同。
Notices

20
CONTACT INFORMATION
MAILING ADDRESS
NISSINDO
29300 Kohoutek Way #150
Union Cit y, CA 94587
U.S.A.
TELEPHONE NUMBERS
USA Region
USA Toll Free: 1-800 -318-2218
Sales & Marketing: 510-477-9955
Customer Ser vice: 510 -477-9955
FAX NUMBERS
USA Region
Sales & Marketing: 510-477-9922
Customer Ser vice: 510 -477-9922
WORLD WIDE WEB
E-mail: [e-mail]
Website: ww w.NissindoUSA.com
MAINTENANCE
With proper maintenance and regular service, it would
maintain the machine quality and prolong its life. We
recommend you to print the following information clearly for
future reference on maintenance and warranty.
MODEL#_____________________INVOICE #_____________
DATE PURCHASED (MM/DD/YYYY)____________________
DEALER NAME______________________________________
CITY_____________ ST./PROV.______ZIP/P.C.____________
DEALER WEBSITE http://www.________________________
DEALER PHONE #___________________________________
DEALER E-MAIL______________________________________
Contact Us