The Beta Three MU8 is a full-range passive speaker system designed for professional audio applications. It features a coaxial transducer with an 8" woofer and a 1.4" compression driver, delivering a frequency response of 80Hz-20kHz and a maximum SPL of 115dB. With a rated power of 150W and a peak power of 600W, it's suitable for medium to large-sized venues. It has a compact design, three mounting points, and a powder-coated grille for outdoor use. Ideal for conference rooms, auditoriums, churches, and live performances.
The Beta Three MU8 is a full-range passive speaker system designed for professional audio applications. It features a coaxial transducer with an 8" woofer and a 1.4" compression driver, delivering a frequency response of 80Hz-20kHz and a maximum SPL of 115dB. With a rated power of 150W and a peak power of 600W, it's suitable for medium to large-sized venues. It has a compact design, three mounting points, and a powder-coated grille for outdoor use. Ideal for conference rooms, auditoriums, churches, and live performances.
MU8
UM- MU8 - 2 0 0 9 0 4 3 0 v e r A
User Manual
MU series professional loudspeaker system
Two way full range passive speaker
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Read this instruction first before using this product.
Pay attention to all warnings.
Obey all operating instructions.
Do not expose this product to rain or moisture.
Do not block any ventilation openings. Install according to instructions of the manufacturer.
Do not install this product near any heat source, such as caliduct, heater, burner, or any other equipment with heat radiation (include amplifier).
Do not destroy the safety settings of the polarity or grounded connector. If the connector provided can't be plugged into the socket,please ask for the
electrician to change the socket.
Avoid the thread (especially the connector, socket, and the parts outside the body) to be under kick or heavily hustled.
Only use spare parts appointed by manufacturer.
In the event of lighting flash or nonuse for a long period, please put off the power supply and pull out the cord to avoid unexpected dangers.
When the damages in the case of the power cord or connector damages, liquids spill into the inside of the product or objects fall into,
exposure to rain or moisture, apparatus are out of work or breaks, please ask for the help from the professionals.
To avoid hazard of fire or electric shock, please avoid socket, extend thread, and power supply been overloaded.
Take care that objects do not fall into and that liquids are not spilled into the inside of the product as this will cause hazard of fire or electric shock.
Pay attention to the safety symbol in the outer side of the cover.
Only plug the connector in proper power supply of which the voltage complies with this equipment. Please follow the operating instruction or symbol.
This equipment must be protected from the spill or insufflations of liquid. Do not lay objects filled with liquid (such as vase) above this equipment.
Please keep this manual for future reference
Smear this equipment with dry cloth.
Please only use cart, stand, tripod, bracket and table that are appointed by manufacturer or sold together with the apparatus.Please avoid overturn the
cart or apparatus when push.
apparatus
12.
SAFET Y I N ST RU CT I ON S
WARN I N G:
PLEASE READ T H I S M AN U AL FI RST
Thanks for buying products. Read this manual first as it will help you operate the system properly. Please keep this
manual for future reference.
WARN I N G:
WARN I N G:
This product must be installed by professionals. When using the hanging and rigging parts that are not appointed, please
ensure the intensity of the structure comply with the local safety criterion.
To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
To reduce the risk of electric shock, only qualified professionals can remove the cover of this system.
The lighting flash & arrowhead symbol within an equilateral triangle is intended to alert you that this part
is not dielectric, and may cause the hazard of electric shock.
The exclamation point within an equilateral triangle is intended to alert you to the presence of important
operating and servicing instructions.
AT T EN T I ON : This system must be connected to the output socket with grounded thread.
AT T EN T I ON : Don't refit the system or spare parts without being authorized as this will cause the hidden trouble.
WARN I N G: Don't lay the fire source (such as litten candle) above the equipment.
AT T EN T I ON : Please operate cautiously even when the main socket or the coupling apparatus is used as disconnection equipment.
MU8
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CONTENT
Features
Description
Applications
Frequency Response And Impedance Curve
CONTENT
CONNECTION
Terminal Plate
NL4 Connection
INSTALLATION
Installation Accessories
Installation Reference
Product inform ation subjects to be updated without
notification, please visit www.elderaudio.com for the
latest update.
INTRODUCTION
System Connection Reference
Loudspeaker Connection
Technical Sheet
2D Dim ension
TECHNICAL SPECIFICATION
MU series professional loudspeaker system
MU8
3
MU8
INTODUCTION
Features
Description
Two way full range passive speaker
Two way full range phase inverted speaker, which adopt
Coaxial transducer with 8" LF part and 1.4" HF part
oo
Dispersion is 90 X90 .
Advanced crossover design make sure the reliability of
tweeter.
Sensitivity is 94dB, Max is SPL 115dB.
RMS pow er is 150W, is peak pow er 600W.
Support flange, three mounting points.
Powder coated grille can be used outdoors for
5 years. The foam backside of the grille can
prevent the rain.
Advanced paint materials and advanced painting
technology make the surface very rigid.
The sound is very clean, powerful and stretchy.
Single Neodymium magnet design on the coaxial transducer
Description Applications
Cabinet is made of 15mm birch plywood with advanced
environmental protection.
Polyurethane-based painting which is very rigid. The cabinet
strength reach to 4500N.
Q235 grille is coated by powder to provide strong ultra-
Weatherability, can be used outdoors for 5 years. The backside
foam of grille can prevent the rain.
MU8 adopts the built-in crossover and single channel
amplifier module.
MU8 is mainly designed for conference room, multifunctional
hall, auditorium, church, living performance. It can be used
separately, or can be used with MU12B together.
multifunctional hall
small hall
Church
conference room
background music
3 MU8 is a very compact design active speaker integrated
the coaxial transducer.It consists of one 8" Neodymium woofer
with 34MM voice coil and one 1.4" com pression driver . The
rated power is 150W. Symmetrical magnet circuit design reduce
the impar HD effectively and enhance the LF sound quality.
MU series professional loudspeaker system
1
2
1
2
3
4
MU8
INPUT
OUTPUT
No.:
ELDER AUDIO MANUFACTURE CO., LTD
1+ 1- : INPUT
1+
2+
1-
2-
MU8
Warranty does not
cover damage caused
by incorrect installation,
op eration or overload.
SENSITIVITY(1W/1m)
IMPEDANCE
NET WEIGHT
94dB
8
8kg
POWER(RMS)
FREQUENCY 80Hz-20kHz
140W
1+
1-
+
-
+
-
LOW
HIGH
1+ 1- INPUT
CHA
BRIDGE IN
CHB
SIGNAL GND
SIGNAL +
SIGNAL -
BRIDGE
PARALLEL
STEREO ON
OFF
50 HZ
25 HZ
ON
OFF
CHB OUTPUT
CHA OUTPUT
POWER
CABLE
FUSE
-
B
+
-
A
+
-
+
5HZ
CAUTION
BRIDGE
OUTPUT ASSIGNMENT:
BRIDGE MONO OUTPUT:
CHA :
PIN1+ : SIGNAL GND
CHA: PIN 1+ :
PIN 1 - :
PIN 2+ :
PIN 2 - :
CHA SIGNAL
CHA GND
CHB SIGNAL
CHB GND
CHB: PIN 1+ :
PIN 1 - :
PIN 2+ :
PIN 2 - :
CHB SIGNAL
CHB GND
PIN2+ :
!
Serial no:
Special design for big power
RISK OF ELECTRIC SHOCK
DO NOT OPEN
MODE LF FILTER GROUNDCLIPLIMITER
INPUT
PIN1:
PIN2 :
PIN3 :
MU8MU12 B
INPUT
MU8 OUTPUT
MU8MU12 B
INPUT
MU8 OUTPUT
CHA
BRIDGE IN
CHB
SIGNAL GND
SIGNAL +
SIGNAL -
BRIDGE
PARALLEL
STEREO ON
OFF
50 HZ
25 HZ
ON
OFF
CHB OUTPUT
CHA OUTPUT
POWER
CABLE
FUSE
-
B
+
-
A
+
-
+
5HZ
CAUTION
BRIDGE
OUTPUT ASSIGNMENT:
BRIDGE MONO OUTPUT:
CHA :
PIN1+ : SIGNAL GND
CHA: PIN 1+ :
PIN 1 - :
PIN 2+ :
PIN 2 - :
CHA SIGNAL
CHA GND
CHB SIGNAL
CHB GND
CHB: PIN 1+ :
PIN 1 - :
PIN 2+ :
PIN 2 - :
CHB SIGNAL
CHB GND
PIN2+ :
!
Serial no:
Special design for big power
RISK OF ELECTRIC SHOCK
DO NOT OPEN
MODE LF FILTER GROUND
CLIPLIMITER
INPUT
PIN1:
PIN2 :
PIN3 :
MU8
MU8
Terminal Plate
CONNECTION
Two NL4 connectors are available for amplifier connections. Paralelled connector is very convenient for another speaker
connection.
1. Connect 2. Disconnect
System Connection Reference
Attention: The impedance of connected speaker must match the impedance of amplifier output.
Attention: Make sure the polarity of speaker and amplifier correctly.
Crossover
NL4 Connection
MU series professional loudspeaker system
Reference A:
Reference B:
1+
1-
2+
2-
1+
1-
2+
2-
1+
1-
2+
2-
0.5 0.75 1.0 1.5 2.5 4.0
2 Ohm
4 Ohm
8 Ohm
0
15
30
46
61
76
0
50
100
150
200
250
5
MU8
CONNECTION
Wire length Meters
Wire length Feet
1. Banana plugs to NL4
Speaker Wiring
2. NL4 to NL4
3. Consumption curve of connection cable(Only for reference, the result is different if adopting the different cables)
Connect to amplifier Connect to speaker
Connect to amplifier Connect to speaker
2
Wire diameter mm
MU series professional loudspeaker system
6
MU8 INSTALLATION
Installation Accessories Installation Reference
MU series professional loudspeaker system
1. Speaker stand
Support flange and three special mounting points are very
convenient for the different applications.
Warning: Make sure the mounting accessories safety
factor not less than 5:1 or meet the local standard during
installation .
1.Reference A
2.Reference B
3.Reference C
80Hz-20kHz
94dB
140W (RMS)
280W (MUSIC)
560W (PEAK)
8 ohm s
90 90
NL4 2
280 262 380m m
(11.0 10.3 15.0in)
115dB/ 121dB(PEAK)
70Hz-20kHz
1.5kHz
8kg(17.6 lb)
9kg(19.8 lb)
1
2
3
4
340 320 460m m
(13.4 15.6 18.1in)
200001000010001005020
70
40
7
4
70
80
90
100
110
Sensitivity (dB)
Impedance (Ohms)
7
MU8
60
Frequency (Hz)
13
23
Speaker Testing Method
1. Frequency response
Use Pink noise to test the speaker in the anechoic room , adjust the
level to make the speaker work at its rated impedance and the power
output is 1W, then test the frequency response 1m away from the
speaker.
2. Sensitivity
Use full range Pink noise which was modified by EQ curve to test the
speaker in the anechoic room, enlarge the signal to make the speaker
work at its rated impedance and the power out put is 1W, then test
the sensitivity 1m away from the speaker.
3. MAX.SPL
Use full range Pink noise which was modified by EQ curve to test the
speaker in the anechoic room, enlarge the signal to make the speaker
work at its inst ant pow er output level, then test the SPL 1m away
from the speaker.
4. Rated Power
Use the pink noise according to IEC#268-5 to test the speaker, enlarge
the signal for continuous 100hours, the rated Pow er is the pow er when
the speaker will not incur hot damage or mechanics damage.
2 Wooden handle
Specification
Frequency response curve
Impedance curve
Frequency response curve & Impedance curve
Wedge shape
Polyurethane-based painting.
Steel grille is coated by powder to
provide strong ultra-Weatherability.
Sensitivity(1W@1m):
Pow er:
Dispersion HV:
N.W.(Pcs):
System:
Frequency response(-3dB):
Frequency response(-10dB):
Max.SPL(1m):
Rated impedance:
Crossover point:
Cabinet:
Handle:
Surface:
Connector:
G.W.(Pcs):
Cabinet dimension:
(WDH)
Package dim ension:
(WDH)
TECHNICAL SPECIFICATION MU series professional loudspeaker system
Installation:
Full range passive speaker
1X1.4" com pression driver
1X8" w oofer
Tweeter:
Woofer:
support flange,
three mounting points
speaker stand
Optional accessory:
8
MU8
380mm
[14.96n]
280mm
[11.02in]
262mm
[10.31in]
Top view
Front view
Side view Back view
Bottom view
2D Dimension
TECHNICAL SPECIFICATION
MU series professional loudspeaker system
Notes:
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1
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2
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3
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4
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5
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6
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7
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8
-
9
-
10
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11
The Beta Three MU8 is a full-range passive speaker system designed for professional audio applications. It features a coaxial transducer with an 8" woofer and a 1.4" compression driver, delivering a frequency response of 80Hz-20kHz and a maximum SPL of 115dB. With a rated power of 150W and a peak power of 600W, it's suitable for medium to large-sized venues. It has a compact design, three mounting points, and a powder-coated grille for outdoor use. Ideal for conference rooms, auditoriums, churches, and live performances.
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