Better Music Builder A-4 Owner's manual

Better Music Builder
Brand
Better Music Builder
Model
A-4
Category
Soundbar speakers
Type
Owner's manual

This manual is also suitable for

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.BetterMusicBuilder.com
®
®
Passionate about Music
Better Music Builder
®
is a leader in the Audio and
Karaoke equipment industry. We are committed to
offering you high quality audio products. Unlike any others
brand, we deliver the best cost and value to you directly.
For the latest update information including operation
manuals, installation instructions, hook-up diagram and
other new technologies updates etc. please visit us at our
website www.Bet terMusicBuilder.com.
OWNER'S MANUAL
PROFESSIONAL POWER AMPLIFIER
A-3 1200W@8ohm/3x400W
A-4 1600W@8ohm/4x400W
PRO Power Amp
A SERIES
PO W ER
CH A NNEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CH A NNEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CH A NNEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
A-3
3-CHANNEL POWER AMPLIFIER
A-3 3-Channel Power Amplifier
PO W ER
CH A NNEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CH A NNEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CH A NNEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CH A NNEL 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
A-4
4-CHANNEL POWER AMPLIFIER
A-4 4-Channel Power Amplifier
2
CONTENTS
INTRODUCTION................................................................................................................................................ 3
SYSTEM FEATURES
............................................................................................................................................ 3
SAFETY INSTRUCTIONS
.............................................................................................................................. 4~5
SPEAKER CONNECTION METHODS AND INFORMATION
.................................................................... 6
SYSTEM APPLICATIONS
................................................................................................................................... 7
• Connecting the Whole System for Small Format
......................................................................................... 7
• Connecting the Whole System for Medium Format
................................................................................... 8
• Connecting the Whole System for Large Format
......................................................................................... 9
• Connecting The A-3 Output Source with 6-channel Mixer DX-6000 G2
...................................... 10
• Connecting The A-4 Output Source with 3-channel Mixer DX-3000 G2
....................................... 11
• Connecting The A-4 Output Source with 5-channel Mixer Dx-5000 G2
....................................... 12
• Connecting The A-4 Output Source with 6-channel Mixer Dx-6000 G2
...................................... 13
CONTROLS AND FUNCTIONS
.................................................................................................................... 14
• Front Panel
............................................................................................................................................................... 14
• Rear Panel
................................................................................................................................................................ 14
OPERATION
...................................................................................................................................................... 15
PHYSICAL DIMENSIONS
............................................................................................................................... 16
SPECIFICATIONS
............................................................................................................................................. 17
TROUBLESHOOTING
............................................................................................................................... 18~19
FINAL WORDS TO USER
............................................................................................................................... 19
WARRANTY
...................................................................................................................................................... 20
AGENCY REGULATORY NOTICES
............................................................................................................... 21
CONTACT INFORMATION
............................................................................................................................ 22
Intro
Features
Safety
Connection
Amplifier
Operating
Warranty
Troubleshooting
Final Words
Contact Us
Spec
Dimensions
Notices
Applications
3
INTRODUCTION
The wait is over! The much anticipated stereo power
amplifier from Better Music Builder has arrived! And it comes
in two models: A-3 and A-4. A-3 is a 3-Channel and A-4 is
a 4-Channel power amplifier. If you’re really looking for
something to bring life to your party, bring this along and
you’ll have a blast!
This new series is designed by the best minds here in
Better Music Builder to make this the most efficient, most
durable, and of course the best designed amplifier ever.
When you’re using the best components and the most
advanced technology, cutting the total weight wasn’t that
difficult. And to officially make this the most portable
amplifier, we’ve included front handles so you can lug the
machine with ease.
Considering how much power the A Series can bring, it
needs a sophisticated cooling system. That’s where the
patented Turbo-Cooling System from Better Music Builder
comes in. Using the new technology, the system aligns the
amplifier’s massive heat sinks to provide maximum cooling.
Also, the fan speed is programmed to vary automatically
based on temperature. What all this means is that the system
extends the life of power transistors by maintaining safe
internal temperatures.
Intro
SYSTEM FEATURES
PROFESSIONAL POWER AMPLIFIER
A Series is equipped with the following
distinguished features:
Models: A-3
A-4
• 3-Channel and 4-Channel power amplifier
• Sleek aluminum chassis
• Signal level indicator for each channel
• Link and Alone work mode
• Power overload protection
• Sophisticated Turbo-Cooling System helps extend life
• Variable fan speed is automatically adjusted by
temperature
• Anti-dust ventilation grill
• Front handles for portability
• Gain has two settings: 32dB and 0.775V
• Inputs: 3 or 4 XLR audio inputs
• Outputs: 3 or 4 dual-banana audio outputs
Features
THIS AMPLIFIER INCLUDES THE FOLLOW:
• Power Amplifier: 1 pc
• Instructional Manual: 1 pc
• Warranty & Registration Card: 1 pc
A-3 Rear View
A-3 Front View
A-4 Rear View
GAIN
32dB
0.775V
CHA NNEL 3
ALONELINK
GAIN
32dB
0.775V
CHA NNEL 4
ALONELINK
CHA NNEL 1
GAIN
32dB
0.775V
GAIN
32dB
0.775V
CHA NNEL 2
ALONELINK
SIG NAL INPU T TE RMINA L
CAUT ION: TUR N OFF AMP LIFI ER BE FORE CHA NGIN G TH IS SW ITC H
SPE AKE R OU TPUT TERM INAL
CAUT ION: SPE AKE R CON NECT ION WITH 8oh m MI N IMP EDAN CE
CHA NNEL 1 CHA NNEL 2 CHA NNEL 3 CHA NNEL 4
360120725500
MODE L: A- 4
CALIF ORNIA , UNI TED S TATES OF A MERIC A
E-mai l: sa les@b etter music build er.co m
ww w . B et t e r Mu s i c Bu i l d er . c o m
ENGIN EERED AND DESIG N IN U.S.A .
SAFETY
MARK
USA 120798-1029611-28
SERI AL NO .
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUT ION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
FUS E
AC- POWER
AC 12 0V 60 Hz
A-4 Front View
CHA NNEL 4
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
CHA NNEL 3
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
CHA NNEL 2
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
CHA NNEL 1
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIE R
POW ER
A-4
CHA NNEL 3
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
CHA NNEL 2
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
CHA NNEL 1
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
®
®
3-CHANNEL
POWER AMPLIFIE R
POW ER
A-3
SIG NAL INPU T TE RMINA L
CAUT ION: TUR N OFF AMP LIFI ER BE FORE CHA NGIN G TH IS SW ITC H
SPE AKE R OU TPUT TERM INAL
CAUT ION: SPE AKE R CON NECT ION WITH 8oh m MI N IMP EDAN CE
CHA NNEL 1 CHA NNEL 2 CHA NNEL 3
360120720400
MODE L: A- 3
CALIF ORNIA , UNI TED S TATES OF A MERIC A
E-mai l: sa les@b etter music build er.co m
ww w . B et t e r Mu s i c Bu i l d er . c o m
ENGIN EERED AND DESIG N IN U.S.A .
SAFETY
MARK
USA 120798-1
029611-28
SERI AL NO .
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUT ION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
FUS E
AC- POWER
AC 12 0V 60 Hz
GAIN
32dB
0.775V
CHA NNEL 3
ALONELINK
CHA NNEL 1
GAIN
32dB
0.775V
GAIN
32dB
0.775V
CHA NNEL 2
ALONELINK
4
SAFETY INSTRUCTIONS
Please visit our website at BetterMusicBuilder.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.
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
CHAN NEL 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIER
POWE R
A-4
CHANNEL 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIER
POWER
A-4
CHAN NEL 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIER
POWE R
A-4
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 store the electronic equipment near water or area
with moisture such as bathroom, kitchen sink, laundry area
and swimming pool, etc.
Do not place the electronic equipment near heat sources
such as stoves, radiators and heaters, etc. Placing the
electronic equipment too near to these heat sources would
result in damaging the equipment and causing fire.
120V AC-POWER
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.
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
HEATER
CHAN NEL 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIER
POWE R
A-4
CHAN NEL 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIER
POWE R
A-4
CHANNEL 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIER
POWER
A-4
POWER ANTENNA-A CNANNEL-A DISPLAY CNANNEL-B DISPLAY
CHANNEL-A
VOLUME
ANTENNA-B
CHANNEL-B
VOLUME
DUAL CHANNEL VHF WIRELESS SYSTEM
RF
AF
FREQ.
5 10 15 20 25 30 35 40
-30 -25 -20 -15 -10 -5 0 PEAK
000.000
M
H
Z
MUTE
RF
AF
FREQ.
5 10 15 20 25 30 35 40
-30 -25 -20 -15 -10 -5 0 PEAK
000.000
M
H
Z
MUTE
6
1
SHIELD
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
Speakon Connectors
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)
SPEA KERS
SPEA KERS
NO GOODGOOD
3. Double Banana Plug Type (Standard Connection)
SPEA KERS
3/4”
19 mm
SPEAKER CONNECTION METHODS AND INFORMATION
Conn ection
2–
1–
1+ 2+
REFERENCE CONNECT
8
4
2
+
–
Source (INPUT) comes from the output
source of the active/powered speaker
while the bridge (OUTPUT) connects
to the passive/non-powered speaker.
7
®
CS-812 G2
CS-812 G2
3-CHANNEL
POWER AMPLIFIER
A-3
DFS-112 SUB
AUX
[iPhone/iPod/MP3 PLAYER]
DVD
DVD PLAYER
VOD
[PC/HITBOX]
SOURCE
MIXER DX-3000 G2
AT&T 9:42AM 88%
Entertainment
Auto Priority
Wireless
HD Video
Connection
Set up
Speaker
Music
Customer Care
Mail
Vocal
Project
Wireless
Lyrics on TV
Free Resources
Stat
Group sing
Technical Support
KTV
Pro Sound
S A I S
DFS-306
CONNECTING THE WHOLE SYSTEM FOR SMALL FORMAT
Use the Classic Series speakers such as CS-250 (8-inch
woofer), CS-500 (10-inch woofer) and CS-812 G2 (12-inch
woofer) and Oval Series speakers such as O-6 (6-inch
woofer), and O-10 (10-inch woofer) for an area between
300 and 500 square feet.
POWER
CHANNE L 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
A-3
3-CHANNEL POWER AMPLIFIER
Applications
SYSTEM APPLICATIONS
DFS-306
AUX
AUX-MUSIC VIDEO
BGM
BGM PLAYER
DVD
DVD PLAYER
VOD
(PC/HITBOX)
SOURCE
8
®
DFS-206
DFS-206
CONNECTING THE WHOLE SYSTEM FOR MEDIUM FORMAT
Use the Classic Series speakers such as CS-612 G2 or
CS-812 G2 (12-inch woofer) and Dynamic Fusion Series
speakers such as DFS-206 (one 6.5-inch woofer) and
DFS-306 (two 6.5-inch woofers) for an area between
1,000 and 2,000 square feet.
4-CHANNEL
POWER AMPLIFIER
A-4
PARALLEL
CS-812 G2
CS-812 G2
DFS-112 SUB
TOUCH SCREEN SONG SELECTOR
POWER
CHANNE L 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
A-4
4-CHANNEL POWER AMPLIFIER
MIXER DX-6000 G2
Pass ionat e abo ut Mu sic
9
CONNECTING THE WHOLE SYSTEM FOR LARGE FORMAT
AUX
AUX-MUSIC VIDEO
BGM
BGM PLAYER
DVD
DVD PLAYER
CENTER DFS-306
CENTER DFS-306
CENTER
DFS-206
CENTER
DFS-206
SCREEN
SUBWOOFER
DFS-112 SUB
SUBWOOFER
DFS-112 SUB
HD VOCAL
LOUDSPEAKER
DFS-915
HD VOCAL
LOUDSPEAKER
DFS-915
4-CHANNEL
POWER AMPLIFIER
A-4
MIXER DX-6000 G2
VOD
(PC/HITBOX)
Use the Dynamic Fusion
Series speakers such as
DFS-912 (12-inch woofer), DFS-915
(15-inch woofer) and DFS-112 SUB (12-inch
woofer) and Dynamic Fusion Series
speakers such as DFS-206 (one 6.5-inch woofer) and
DFS-306 (two 6.5-inch woofers) for an area between
1,000 and 3,000 square feet.
SOURCE
POWER
CHANNE L 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
A-3
3-CHANNEL POWER AMPLIFIER
POWER
CHANNE L 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
A-4
4-CHANNEL POWER AMPLIFIER
3-CHANNEL
POWER AMPLIFIER
A-3
SI GNAL INP UT T ERM INAL
CA UT IO N: T UR N OF F AM PL IF IE R BE FO RE C HA NGIN G TH IS S WI TCH
CH A NN EL 1
GAIN
32dB
CH A NN EL 2
GAIN
32dB
ALONELIN K
CH A NN EL 3
GAIN
32dB
ALONELIN K
SP E A K ER OUTP U T T ERMINAL
CA UT IO N: S PE AKER CON NECT ION WI TH 8 oh m MI N IMP EDAN CE
CH A NN EL 1 CH A NN EL 2 CH A NN EL 3
360120720400
MODEL: A -3
CAL IFORN IA, U NITED STAT ES OF AMER ICA
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w w w. B e t te r M u si c B u il d e r .c o m
ENG INEER ED AN D DES IGN I N U.S .A.
SAFETY
MARK
USA 120798-1029611-28
SERI AL N O.
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
FUSE
AC-P OWER
AC 120 V 60 Hz
10
MIC 4 MIC 5
REAR M IC IN PU T
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
VIDE O INPUT T ERMIN AL
COMP OS ITE V ID EO OU TPUT
1
VOD
2
DVD
3
BGM
4
AUX
Parallel with front
AUDI O INPUT T ERMIN AL
L
R
BGM
KODDVDVO D AUX 1 AUX 2
L
R
AUDI O OUTPU T
GROUP
A
GROUP
B
CENT ER 1
CENT ER 2
RIGH T
RIGH T LEFT
LEFT
SUB 1
SUB 2
AUDI O [XLR] O UTPUT
VOCA L MONIT OR MAIN O UT [B al ance Fa der] BASS
MODE L: DX-6 00 0 G2
CAL IFORN IA, U NITED STAT ES OF AMER ICA
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ENG INEER ED AN D DES IGN I N U.S .A.
360110513000
FUSE
500 mA / 125V
AC~12 0V 6 0Hz 20W
AC-P OW ER
REMO TE
USB IN PUT
DX-6000 G2 REAR VIEW
CONNECTING THE A-3 OUTPUT SOURCE WITH 6-CHANNEL MIXER DX-6000 G2
A-3 REAR VIEW
WIRELESS MICROPHONE
SUBWOOFER DFS-115 SUB SUBWOOFER DFS-115 SUB
MAIN LEFT SPEAKER
GROUP A
MAIN RIGHT SPEAKER
GROUP A
CENTER SPEAKER
This diagram gives you an idea of how to connect three
speakers to the 3-Channel power amplifier. If it’s used in a
bigger room that’s in excess of 1,000 square feet, you may
need two other speakers acting as rear speakers. When
doing so, a second 2-channel power amplifier is required.
11
CONNECTING THE A-4 OUTPUT SOURCE WITH 3-CHANNEL MIXER DX-3000 G2
SI GNAL INP UT T ERM INAL
CA UT IO N: T UR N OF F A MPL IF IE R B EFOR E CH ANGI NG T HI S SW IT CH
CH A NN EL 1
GAIN
32dB
CH A NN EL 2
GAIN
32dB
ALONELIN K
CH A NN EL 3
GAIN
32dB
ALONELIN K
CH A NN EL 4
GAIN
32dB
ALONELIN K
SP E A K ER OUTP U T T ERMINAL
CA UT IO N: S PE AKER CON NECT ION WI TH 8 oh m MI N IMPE DA NC E
CH A NN EL 1 CH A NN EL 2 CH A NN EL 3 CH A NN EL 4
360120725500
MODE L: A -4
CAL IFORN IA, U NITED STAT ES OF AMER ICA
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ENG INEER ED AN D DES IGN I N U.S .A.
SAFETY
MARK
USA 120798-1029611-28
SERIAL N O.
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
FUSE
AC-P OWER
AC 120 V 60 Hz
SER IAL N O.:
MODEL: DX -3 00 0 G2
CAL IFORN IA, U NITED STAT ES OF AMER ICA
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ENG INEER ED AN D DES IGN I N U.S .A.
REMOTE
INPUT
MAIN 1R L
AUDI O (¼”) OU TP UT
MIC 3 MIC 4
MICR OP HONE IN PU T
CAUTI ON
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
AUDI O INPUT T ER MINAL
L
R
VODAUX DV D
VIDE O INPUT T ER MINAL
VIDE O MONITOR O UTPUT
1
AUX
2
VOD
3
DVD
L
R
OUTP UT
SUB
REC
AUDI O
OUTP UT
AUX
INPU T
VOLUME
AC~120V 60Hz 35W
AC~220V 50Hz
FUSE
AC-P OW ER
115
MAIN 2
AUDI O (XLR) O UT PUT
R
L
DX-3000 G2 REAR VIEW
A-4 REAR VIEW
SUBWOOFER DFS-112 SUB
WIRELESS MICROPHONE
MAIN LEFT SPEAKER
GROUP A
MAIN LEFT
SPEAKER GROUP B
MAIN RIGHT SPEAKER
GROUP A
MAIN RIGHT
SPEAKER GROUP B
This is the 4-channel power
amplifier connection diagram.
If you’re using a third party
mixer, make sure there’s
enough audio outputs to
connect to the 4-channel
power amplifier.
12
SER IAL N O.:
CALIFORNIA, UNITED STATES OF AMERICA
E- mai l: sal es @be tte rmu sic bu ild er. com
w w w. B e t te r M u si c B u il d e r .c o m
ENG INEER ED AN D DES IGN I N U.S .A.
361111015500
AC~120V 60Hz 35W
AC~220V 50Hz
FUSE 1A
AUDI O (XLR) O UT PUT
MAIN 2
OUTP UT
MICR OP HONE IN PU T
MIC 3
MIC 4
MAIN 1
AUDI O (¼”) OU TP UT
R L
REAR M ICROPHO NE MODE
DELA Y REPE AT ECHO
REMO TE
INPU T
RS-2 32
AUX VOD
L
R
L
R
L
R
VOD
INPU T
AUDI O INPUT
VOD
DVD
AUX 2AU X 1
L
R
L
R
RECO RD ING OUT
L
R
L
R
VIDE O INPUT MIC EFFECT OR
MOD EL: D X- 50 00 G2
SAFETY
MARK
USA 020898-1
029536-28
CAU TION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
VOLUME
AUX
VIDEO
OUTPUT
DVD RETU RN SEND
SUB REAR CENTER
L
R
L
R
R L
AC-P OW ER
115
CONNECTING THE A-4 OUTPUT SOURCE WITH 5-CHANNEL MIXER DX-5000 G2
DX-5000 G2 REAR VIEW
SI GNAL INP UT T ERM INAL
CA UT IO N: T UR N OF F A MPL IF IE R B EFOR E CH ANGI NG T HI S SW IT CH
CH A NN EL 1
GAIN
32dB
CH A NN EL 2
GAIN
32dB
ALONELIN K
CH A NN EL 3
GAIN
32dB
ALONELIN K
CH A NN EL 4
GAIN
32dB
ALONELIN K
SP E A K ER OUTP U T T ERMINAL
CA UT IO N: S PE AKER CON NECT ION WI TH 8 oh m MI N IMPE DA NC E
CH A NN EL 1 CH A NN EL 2 CH A NN EL 3 CH A NN EL 4
360120725500
MODE L: A -4
CAL IFORN IA, U NITED STAT ES OF AMER ICA
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ENG INEER ED AN D DES IGN I N U.S .A.
SAFETY
MARK
USA 120798-1029611-28
SERIAL N O.
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
FUSE
AC-P OWER
AC 120 V 60 Hz
A-4 REAR VIEW
WIRELESS MICROPHONE
SUBWOOFER DFS-115 SUB
MAIN RIGHT SPEAKER
GROUP B
MAIN LEFT SPEAKER
GROUP B
MAIN LEFT SPEAKER
GROUP A
MAIN RIGHT SPEAKER
GROUP A
2-CHANNEL
POWER AMP REAR VIEW
SIG NAL INPU T TE RMINA L
CAUT ION: TUR N OFF AMP LIFI ER BE FORE CHA NGIN G TH IS SW ITC H
CHA NNEL 1
GAIN
32dB
CHA NNEL 2
GAIN
32dB
ALONELIN K
SPE AKE R OUT PUT TERM INAL
CAUT ION: SPE AKER CON NECT ION WITH 8oh m MI N IMP EDAN CE
CHA NNEL 1 CHAN NEL 2
360120719500
MODE L: A- 2
CALIF ORNIA , UNI TED S TATES OF A MERIC A
E-mai l: sa les@b etter music build er.co m
ww w . B et t e r Mu s i c Bu i l d er . c o m
ENGIN EERED AND DESIG N IN U.S.A .
SAFETY
MARK
USA 120798-1029611-28
SERI AL NO .
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUT ION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
FUS E
AC- POWER
AC 12 0V 60 Hz
MAIN LEFT
SPEAKER GROUP B
MAIN RIGHT
SPEAKER GROUP B
13
CONNECTING THE A-4 OUTPUT SOURCE WITH 6-CHANNEL MIXER DX-6000 G2
MIC 4 MIC 5
REAR M IC IN PU T
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
VIDE O INPUT T ERMIN AL
COMP OS ITE V ID EO OU TPUT
1
VOD
2
DVD
3
BGM
4
AUX
Parallel with front
AUDI O INPUT T ERMIN AL
L
R
BGM
KODDVDVO D AUX 1 AUX 2
L
R
AUDI O OUTPU T
GROUP
A
GROUP
B
CENT ER 1
CENT ER 2
RIGH T
RIGH T LEFT
LEFT
SUB 1
SUB 2
AUDI O [XLR] O UTPUT
VOCA L MONIT OR MAIN O UT [B al ance Fa der] BASS
MODE L: DX-6 00 0 G2
CAL IFORN IA, U NITED STAT ES OF AMER ICA
E- mai l: inf o@ bet ter mus icb ui lde r.c om
w w w. B e t te r M u si c B u il d e r .c o m
ENG INEER ED AN D DES IGN I N U.S .A.
360110513000
FUSE
500 mA / 125V
AC~12 0V 6 0Hz 20W
AC-P OW ER
REMO TE
USB IN PUT
DX-6000 G2 REAR VIEW
SI GNAL INP UT T ERM INAL
CA UT IO N: T UR N OF F A MPL IF IE R B EFOR E CH ANGI NG T HI S SW IT CH
CH A NN EL 1
GAIN
32dB
CH A NN EL 2
GAIN
32dB
ALONELIN K
CH A NN EL 3
GAIN
32dB
ALONELIN K
CH A NN EL 4
GAIN
32dB
ALONELIN K
SP E A K ER OUTP U T T ERMINAL
CA UT IO N: S PE AKER CON NECT ION WI TH 8 oh m MI N IMPE DA NC E
CH A NN EL 1 CH A NN EL 2 CH A NN EL 3 CH A NN EL 4
360120725500
MODE L: A -4
CAL IFORN IA, U NITED STAT ES OF AMER ICA
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ENG INEER ED AN D DES IGN I N U.S .A.
SAFETY
MARK
USA 120798-1029611-28
SERIAL N O.
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
FUSE
AC-P OWER
AC 120 V 60 Hz
A-4 REAR VIEW
WIRELESS MICROPHONE
SUBWOOFER DFS-115 SUB SUBWOOFER DFS-115 SUB
MAIN RIGHT SPEAKER
GROUP B
MAIN LEFT SPEAKER
GROUP B
MAIN LEFT SPEAKER
GROUP A
MAIN RIGHT SPEAKER
GROUP A
GAIN
32dB
0.775V
CH A N NEL 3
ALONELI NK
GAIN
32dB
0.775V
CH A N NEL 4
ALONELI NK
CH A N NEL 1
GAIN
32dB
0.775V
GAIN
32dB
0.775V
CH A N NEL 2
ALONELI NK
SIG N AL IN PU T TERMINAL
CA UTI O N: TU RN OF F A MPL IFI ER BE FOR E C H ANG ING T HIS SW ITCH
SPEAKER OUTPUT T ERMIN A L
CA UTI O N: SP E AKER C O NN ECTI ON WIT H 8 ohm MI N IMP EDA NCE
CH A N NEL 1 CH A N NEL 2 CH A N NEL 3 CH A N NEL 4
360120725500
MODEL: A -4
CALIFORNIA , UN IT ED S TA TE S OF AMERICA
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ENGINEER ED A ND D ES IG N IN U .S.A.
SAFETY
MARK
USA 120798-1029611-28
SERIAL NO.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUT ION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WITHOUT AUTHORIZATION
FUSE
AC-POWER
AC 120V 60Hz
14
CONTROLS AND FUNCTIONS
Amplifier
FRONT PANEL:
CHANNEL-2 SIGNAL LEVEL LED INDICATOR
CHANNEL-2 GAIN CONTROL
CHANNEL-1 SIGNAL LEVEL LED INDICATOR
CHANNEL-1 GAIN CONTROL
ANTI-DUST VENTILATION GRILL
1
POWER SWITCH ON/OFF
CHANNEL-4 SIGNAL LEVEL LED INDICATOR
CHANNEL-4 GAIN CONTROL
CHANNEL-3 SIGNAL LEVEL LED INDICATOR
CHANNEL-3 GAIN CONTROL
2
3
4
5
6
7
8
9
10
REAR PANEL:
FUSE: Housing for the power supply fuse.
AUDIO (XLR) INPUT
AC-POWER CABLE
11 14
LINK/ALONE MODE
GAIN SWITCH
SPEAKER OUTPUT TERMINAL
12
13
15
16
CH A NNEL 4
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VO L
CH A NNEL 3
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
CH A NNEL 2
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
CH A NNEL 1
0dB
-3dB
-12dB
-32dB
Powe r
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIER
POW E R
A-4
10
1 2 3 4 5 6 7 8 9
16
13
15
1411 12
REAR PANEL OPERATION
GAIN SWITCH
Slide the switch to adjust the gain on the channel. Increasing
the gain amplifies the input signal.
Please turn off the system at least 3 minutes before any
adjustment. Improper handling may damage the system.
LINK/ALONE MODE
This series of amplifier has the capability to link two input
channels. Slide the switch to LINK mode to connect the two
input channels or switch to ALONE mode to have the input
channels work independently.
Please turn off the system at least 3 minutes before any
adjustment. Improper handling may damage the system.
15
CHANNEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
OPERATION
Opera ting
OPERATIONAL GUIDANCE
START UP
1. Check the wires.
2. Use the correct amplifier voltage.
3. Turn the volume to the minimum level.
4. Turn On the power amplifier.
5. Adjust to the proper volume level.
SHUT DOWN
1. Turn the volume to the minimum level.
2. Turn Off the power amplifier.
LED INDICATOR
1. Every channel has a green power indicator. Turn On the
machine and wait 5 seconds. The LED indicators will turn on
after the system finish self-inspection.
2. 32dB indicator shows the channel has output signals.
3. 12dB indicator shows the channel has output power
closed 10% of RMS.
4. 3dB indicator shows the channel has output power 50%
higher than RMS.
5. 0dB indicator shows the channel reached its full power
output. At this time, there will be clip distortion.
6. When power is On but any indicator is Off, it means the
channel is broken.
GAIN
32dB
0.775V
CHANNEL 2
ALONELINK
GAIN
32dB
0.775V
CHANNEL 2
ALONELINK
16
A-3 Front View
19”
48.3 cm
3.5”
8.8 cm
15”
38.2 cm
CHA NNEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHA NNEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHA NNEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
3-CHANNEL
POWER AMPLIFIER
POW ER
A-3
A-4 Front View
19”
48.3 cm
3.5”
8.8 cm
15”
38.2 cm
CHA NNEL 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHA NNEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHA NNEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHA NNEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIER
POW ER
A-4
0dB
Volume
CENTER
5-CHANNEL POW ER 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 . V OL UM E
VOLMIC ROP HO NE TO NE
MIC. INPUT
MIC 1 MIC 2
EXCITER
VOLHIGH SUB FREQ
Hz
MIC 1 3 MIC 2 4 LOW REAR
TREBLE
MID
BASS
MOD E A DJ US TAB LE
CENTER
MUSIC VOL
20 240
VOL
EXCITER MIC AUDIO SUB INPUT
SR
UP
DOWN
MEMORY
5 CHANNEL AUDIO VIDEO EFFECTS PROCE SSOR
MUSIC VOL 10
CDG
DVD VOD
POWER
PORTABLE SYSTEM
CHANNE L 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHANNE L 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIER
POWER
A-4
POWER ANT ENA-A CNANNEL-A DIS PLAY CNANNEL-B DISPLAY
CHANNEL-A
VOLUME
ANTENA-B
CHANNEL-B
VOLUME
DUAL CHANNE L VHF WIREL ESS SYSTEM
RF
AF
FREQ.
5 10 15 20 25 30 35 40
-30 -25 -20 -15 -10 -5 0 PEAK
000.000
M
H
Z
MUTE
RF
AF
FREQ.
5 10 15 20 25 30 35 40
-30 -25 -20 -15 -10 -5 0 PEAK
000.000
M
H
Z
MUTE
PHYSICAL DIMENSIONS
Dimensions
PACKING DIMENSIONS
(WxHxD)
22.8x4.5x21.3 in
58x11.5x54 cm
DIMENSIONS
(WxHxD)
19x3.5x17.9 in
48.2×8.8×45.5 cm
MODEL
A-3 A-4
NET WEIGHT
33.1 Lbs / 15 Kg
SHIPPING WEIGHT
39.7 Lbs / 18 Kg
22.8x4.5x21.3 in
58x11.5x54 cm
19x3.5x17.9 in
48.2×8.8×45.5 cm
35.3 Lbs / 16 Kg
41.9 Lbs / 19 Kg
AIR VENTILATION
This series of amplifiers use the same ventilation structure.
First, cool air enters through the front panel. While inside, it
goes through the transformer and enters the fan. And then it is
finally compressed into the radiator and flows out from the
side outlets.
WARM
AIR EXITS
WARM
AIR EXITS
COOL
AIR ENTERS
(Front)
Side View
17
SPECIFICATIONS
Spec
MODEL
RATED POWER
80 V (Vp/40ms)
1.41 V (32dB/X40)
37.3 dB
<0.025% (1kHz, normal operating conditions)
<0.075% (60Hz/7kHz 4:1, normal operating conditions)
<+ / - 0.5dB (20Hz-20kHz, normal operating conditions)
10Hz~22kHz (-3dB, normal operating conditions)
<+ / -15 Degrees (20Hz-20kHz, normal operating conditions)
> 110dB (1kHz, X40 (32dB), A-weighted)
> 300 (63Hz)
> 20V/us (10kHz Square Wave, X40 (32dB) gain)
> 20k ohm (1kHz, balanced input)
> 3.2 ohm (single channel)
> 80dB (1kHz)
> 80dB (1kHz)
8ohm/60s
8ohm/40ms
4ohm/40ms
400W x 3
500W x 3
800W x 3
8ohm/60s
8ohm/40ms
4ohm/40ms
400W x 4
500W x 4
800W x 4
MAXIMUM OUTPUT VOLTAGE
INPUT SENSITIVITY
MAX GAIN (0.775V)
THD (Total Harmonic Distortion)
INTERMODULATION DISTORTION
FREQUENCY RESPONSE
POWER BANDWIDTH
PHASE RESPONSE
S/N RATIO
DAMPING
CONVERSION RATE
INPUT IMPEDANCE
MINIMUM LOAD IMPEDANCE
SEPARATION
COMMON MODE REJECTION
A-3
CHAN NEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
3-CHANNEL
POWER AMPLIFIER
POWE R
A-3
A-4
CHAN NEL 4
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 3
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 2
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
CHAN NEL 1
0dB
-3dB
-12dB
-32dB
Power
-
00
0dB
VOL
®
®
4-CHANNEL
POWER AMPLIFIER
POWE R
A-4
18
TROUBLESHOOTING
1. NO SOUND: Power indicator is Off.
REMEDY:
• Check the AC Plug.
• Ensure that the AC outlet works by testing other devices. If
too many amplifiers are used on one outlet, the building's
circuit breaker may trip and shut off power.
• Check the overload switch located on rear panel.
• An amplifier that keeps shutting off may have a serious
internal fault. Turn it off, remove AC power, and have the
amplifier serviced by a qualified technician.
2. NO SOUND: The power indicator light is On but -32dB
light (signal light) is Off.
REMEDY:
If the POWER indicator LED is On and the fan is running,
but the signal LEDs indicate no signal, check the input. Make
sure the signal source is operating and try another input
cable. Connect the source to another channel or amplifier to
confirm its operation.
Check audio cables or microphone cables.
Use a better audio cable or 3pin XLR microphone cable.
Ensure microphone is On.
Check the microphone volume.
3. 0dB (OVERLOAD INDICATOR) IS ON & SOUND IS
ABNORMAL
REMEDY:
Sound of music signal output amplitude is too high.
The gain level is set too high.
Ensure the output connection is connected correctly and
then reboot the machine.
4. SIGNAL LED IS NOT RESPONDING TO SIGNAL LEVEL
REMEDY: If the SIGNAL indicator is lighting normally, the
problem may be between the amplifier and the speaker.
Check the speaker wiring for breaks. Try another speaker
and cable.
Troubleshooting
5. BAD AUDIO OR MICROPHONE SOUNDS
REMEDY:
Check the source of audio (CD, DVD) to see if it’s
scratched.
Check audio cables or microphone cables.
Use a better audio cable or 3pin XLR microphone cable.
6. THERE IS NO PICTURE
REMEDY:
Check to see if video sources are selected accordingly.
Check to see if plugged in the video cables are plugged in.
Check TV or display monitor.
7. VIDEO IS FLICKERING
REMEDY:
Check to see if the AV cable is damaged.
Use a better AV cable.
We recommend connecting videos to the TV or monitor
directly for best results.
8. POWER CAN NOT BE TURNED ON
REMEDY:
Check to see if unit is plugged in properly.
Check power cable.
9. PROTECTION FOR AUDIO/VIDEO EQUIPMENT
Before hooking up or disconnecting any audio/video equip-
ment, turn off the power for all equipment. Otherwise, it may
cause black spots to appear on the LCD or Plasma TV screen.
10. AMPLIFIER SHUT DOWN/INTERFERENCE NOISE
CAUSE: The amplifier turned On but there is no music coming
out from the speaker powered output channels.
REMEDY: Ensure that the AC-power supply is connected to the
correct voltage level according to your region.
19
11. NOISE AND DISTORTION
When humming noise or displeasing sound appears, 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.
12. SOUND PROBLEM: No sound.
REMEDY:
Positive and negative of
speaker wire are touching
each other at the terminals.
We recommend the usage
of double banana plugs.
FINAL WORDS TO USER
The engineering team of Better Music Builder has many
years of experience in audio equipment design. The team
constantly develops new audio technologies, designs
innovative audio and karaoke equipment to suit your specific
needs and provides you great ideas for home entertainment.
Our engineering team also designs audio equipment for
commercial use by restaurants, coffee shops, churches, and
school auditoriums, etc. If the commercial area for audio
equipment installation exceeds 2,000 square feet, we highly
recommend hiring audio professionals to handle the
installation in order to avoid risks in breaking the equipment
with improper installation and safety protection purposes.
We also provide educational and technical information on
audio equipment and technologies. For example, we provide
free installation diagrams to make it easier to connect the
system. In addition, to get best connections for the sharpest
image and sound quality, we provide hot tips for choosing
the high quality type of A/V cable connections. Free
information on audio equipment and technologies available
for download from our website,
www.Bet terMusicBuilder.com.
Please do not remove the “Yellow
Label” on the rear of the machine;
otherwise, the warranty will be void
automatically. We design it to protect
your own safety. If repair and
maintenance service is needed,
please contact us directly or hire a
professional technician. To learn more
about the technical aspects, visit our
website www.Bet terMusicBuilder.com and download
the relevant information for review.
Before hooking up the system, turn off the power on all
machines including audio/video equipment and TV.
Otherwise, it may damage the equipment, especially on the
HDTV in which a spot might appeared on the TV screen.
After hooking up the system, double check the audio/video
connections to ensure that they are connected correctly.
Sometimes, loose or poor quality cable would affect
the microphone effects, picture quality, or even cause the
machine to shut down suddenly.
Again, thank you for choosing Better Music Builder. We
hope you can make the best use of the machine and enjoy it
for years to come. If you have any questions regarding our
product, please feel free to contact us at
www.Bet terMusicBuilder.com.
Any form of
tampering with this
product, will void
the warranty.
NOTE
Final Words
3 prong to 2 prong adaptor
110V~120V
FIGURE 1
Qualit y Power Cord:
105°C 3C/18AWG 300V
FIGURE 2
NOTE
SPEAKERS
20
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 Better
Music Builder 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 Better
Music Builder 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 ww w.bettermusicbuilder.com.
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Better Music Builder A-4 Owner's manual

Better Music Builder
Brand
Better Music Builder
Model
A-4
Category
Soundbar speakers
Type
Owner's manual
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