Beta Three MU series User manual

MU15
UM- MU15- 20090827 ver A
User Manual
15" two way full range
speaker with built-in crossover
MU Series Pro Loudspeaker System

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Read the instruction first before using this product.
Pay attention to all warnings.
Obey all operating instructions.
Do not expose t his product to rain or moisture.
Do not block any ventilation openings. Inst all according to instructions .
Do not inst all t his product near any heat source, such as , heater, burner, or any other equipment with heat radiation .
Only use spare parts by manufacturer.
Pay attention to the safety sym bol on the of the cover.
manual
Please keep this manual for future reference
Clean this equipment with a dry cloth.
manufacturer's
a
supplied the
outside
SAFETY INSTRUCTIONS
PLEASE READ THIS MANUAL FIRST
Thank you for a buying product. Read this manual first as it will help you operate the system properly. Please keep this manual
for future reference.
WARNING:
This product must be installed by professionals. When using hanging brackets or rigging other than those supplied with
the product, please ensure they comply with the local safety codes.
The exclamation point within an equilateral triangle is intended to alert you to the presence of important
operating and servicing instructions.
ATTENTION:Don't refit t he system or spare parts without being a uthorized as this will .void the warranty
WARNING: Don't (such as candles) the equipment.place naked flames close to

MU15
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CONTENT
Features
Description
Applications
Frequency Response And Impedance Curve
CONTENT
CONNECTION
Terminal Plate
NL4 Connection
INSTALLATION
Mounting Accessories
Installation Reference
Product information subjectsto be updated w ithout
notification, please visit www.elderaudio.com for
latest update.
INTRODUCTION
System Connection Reference
Loudspeaker Connection
Technical Sheet
2D Dimension
TECHNICAL SPECIFICATION
MU Series Pro Loudspeaker Syst em

MU15
MU15
MU Series Pro Loudspeaker Syst em
INTODUCTION
Features
Description Applications
Tw o wayfull range phaseinverted speaker with 15"
woofer and 3"compression driver.
00
Dispersion 60 x40 , the controlled frequency reach to 1kHz.
Advanced free protection design assurethe reliability
of tweeter.
Sensitivity 98dB, Max.SPL124dB.
Rated power 360W, peak power1440W.
Standard flying m ounting syst em.
The necessary flying m ount ing accessories w ill be
attached, the Max.installation w eight reach to 385Kg
to make thesafety of speaker.
Pow der coated grille can be used outdoors for 5 years.
The foam backsideof the grillecan prevent t herain.
The new paint m aterials and advanced painting
technology m ake thesurface very rigid.
15" two wayfull range speakerwith built-in crossover
3 MU15 is a t wo w ay full range sp eaker adopt ing the new
st ructure and new painting technology. It integrates one 15"
Neodym ium w oofer w it h 75MM voice coil and one 3"
compression driver . The rated power is 360W, the peak power
is 1440W. Symmetrical magnet circuit design reduce the impar
HD effectively and enhance the LFsound quality.
Neod ymium t ransducers red uce 15% w eight .
Cabinet is madeof 15mm birch plywood w ith advanced
environmental protection Polyurethane-based painting which
is very rigid. The cabinet strength reach to 4500N. Q235 grille is
coated by pow der to provide strong ultra-Weat herability, can
be used outdoors for 5 years. The backsidefoam of grille can
prevent the rain.
MU15 adopts the prot ection free design, w hich reduce the
interfere and enhance the sound quality.
A lot of new materialsw ere used on MU15,for example, the
diaphragm ismade from magnalium to m eet the sound
requirement.
MU15 is m ainly designed for conference room , multifunct ional
hall, auditorium, church, living performance.
Multifunctional hall
Small Auditorium
Church
Conference room
Small performance
3

CHA
BRIDGE IN
CHB
SIGNAL GND
SIGNAL +
SIGNAL -
BRIDGE
PARALLEL
STEREO ON
OFF
50 HZ
25 HZ
ON
OFF
CHB OUTPUT
CHA OUTPUT
POWER
CA BLE
FUSE
-
B
+
-
A
+
-
+
5HZ
CA UTION
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
CLIPLIM ITER
INPUT
PIN1:
PIN2:
PIN3:
MU15
1
2
1
2
3
4
MU15
MU15
INPUT
OUTPUT
No.:
ELDER AUDIO MANUFACTURE CO., LTD
1+ 1- : INPUT
1+
2+
1-
2-
MU15
War rant y do es not
cover damage caused
by incorrect installation,
op eration or overload.
SENSITIVITY(1W/1m)
IMPEDANCE
NET WEIGHT
98dB
8
28kg
POWER(RMS)
FREQUENCY 45Hz-17kHz
360W
1+
1-
+
-
+
-
LOW
HIGH
1+ 1- INPUT
Terminal Plate
CONNECTION
Tw o NL4connectors are availablefor amplifier connection. 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 impedanceof amplifier output.
Attention: Make sure thepolarity of speaker and amplifier correctly.
Crossover
NL4 Connection
MU Series Pro Loudspeaker Syst em

1+
1-
2+
2-
1+
1-
2+
2-
1+
1-
2+
2-
0.50.751.01.52.54.0
2 Ohm
4 Ohm
8 Ohm
0
15
30
46
61
76
0
50
100
150
200
250
5
MU15
CONNECTION
Wire length Meters
Wire length Feet
1. Banana plugsto NL4
Speaker Wiring
2. NL4 t o NL4
3. Consumption curve of connection cable(Only for reference,the result isdifferent if adopting the different cables)
Connect to amplifier Connect to speaker
Connect to amplifier Connect to speaker
2
Wire diameter mm
MU Series Pro Loud sp eaker System

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MU15
SPS-502BC black
Warning:Make sure the mounting accessories
safety factor not less than 5:1or meet the local
standard during installation .
INSTALLATION
Installation Reference
Mounting Accessories
The st andard flying mounting hardw are is very convenient
for different installations and applications.
1. Speaker stand
2. Standard flying m ounting ring
1. Vertical flying m ounting installation
2. Horizontal flying mounting installation
MU Series Pro Loudspeaker Syst em

13"com p ression d river
45Hz-17kHz
98dB
360W
720W
1440W
(RMS)
(MUSIC)
(PEAK)
8 Ohm s
60 40
Tweeter:
NL4 2
485 485 720mm
(19.1 19.1 28.4in)
Max. SPL(1m): 124d B/ 130d B(PEAK)
35Hz-20kHz
1 15"Neodym ium w oofer Woofer:
1.7kHz
28.0kg(61.6 lb)
32.5kg(71.5 lb)
Passive full range wooden
speaker with painting
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2
3
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595 595 840mm
(23.4 23.4 33.1in)
200001000010001005020
100
50
10
5
70
80
90
100
110
Sensitivity (dB)
Impedance (Ohms)
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MU15
60
Frequency (Hz)
Frequency response curve
Impedance curve
Frequency response curve & Impedance curve
TECHNICAL SPECIFICATION
2 Wooden handle
Wedge shape
Sensitivity(1W@1m):
Pow er:
Dispersion HV:
System:
Frequency response(-3dB):
Frequency response(-10dB):
Rated impedance:
Crossover point:
Cabinet:
Handle:
Connector:
Cabinet dimension:
(WDH)
Package dimension:
(WDH)
TechnicalSpecification
Mounting accessories: Standard flyin g m ounting hardw are
Painting: Cabinet coated byPolyurethane paint;
grille is pow dercoated
Net weight(pc):
Gross weight(pc):
Optional m ounting accessories:
Flying m ounting ring, speaker stand
MU Series Pro Loudspeaker Syst em
Speaker Testing Method
1. Frequency Response
Use Pink noise t o t est t he speaker in t he anechoic chamb er,
adjust the level to make the speaker w ork at it s rated impedance
and set the output power at 1W, then test the frequency response
1m away from the speaker.
2. Sensitivity
Use full range Pink noise which has been modified using
an EQ curve to test the speaker in the anechoic chamber,
increasing the signal to m ake the speaker work at its rated
impedance and set the pow er output at 1W,then test the
sensitivity 1m aw ay from the speaker.
3. MAX.SPL
Use full range Pink noise which has been modified using
an EQ curve to t est the speaker in the anechoic chamber ,
increase the signal to make the speaker w ork at its
maximum pow er output level,t hen test the SPL1m away
from the speaker.
4. Rated Pow er
Use Pink noise to the IEC#268-5 standard to test the speaker,
increase the signal for a cont inuous period of100 hours,
the rated pow er isthe pow er when the speaker will show
no visible or m easurable damage.

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MU15
720mm
[28.35in]
485mm
[19.09in]
485mm
[19.09in]
Top view
Front view
Side view Back view
Bottom view
2D Dimension
TECHNICAL SPECIFICATION
MU Series Pro Loud sp eaker System

Notes: