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MU18B
UM- M U18B- 20090928 ver A
18" subwoofer
MU Series Pro Loudspeaker System
User Manual
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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:
ATTENTION: Don't refit the system or spare parts without being authorized as this will .void the warranty
WARNING: Don't (such as candles) the equipment.place naked flames close to
Read the instruction first before using this product.
1.
Please keep this manual for future reference
2.
Pay attention to all warnings.
3.
Obey all operating instructions.
4.
Do not expose this product to rain or moisture.
5.
Clean this equipment with a dry cloth.
6.
Do not block any ventilation openings. Install according to instructions .
7.
Do not install this product near any heat source, such as , heater, burner, or any other equipment with heat radiation .
8.
Only use spare parts by manufacturer.
9.
Pay attention to the safety symbol on the of the cover.
10.
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.
manual
manufacturer's
a
supplied the
outside
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MU18B
MU Series Pro Loudspeaker System
CONTENT
CONTENT
INTRODUCTION
Features
Description
Applications
CONNECTION
Terminal Plate
NL4 Connection
System Connection Reference
Loudspeaker Connection
INSTALLATION
Installation Accessories
Installation Reference
TECHNICAL SPECIFICATION
Technical Sheet
Frequency Response And Impedance Curve
Frequency Response And Impedance Curve
2D Dimension
3
3
3
3
4
4
4
4
5
6
6
6
7
7
7
8
Product information subjects to be updated without
notification, please visit www.elderaudio.com for
latest update.
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INTODUCTION
MU18B
18" subwoofer
Feature
Single 18" phase inverted subwoofer.
Sensitivity is 97dB, Max. SPL is 124dB.
Rated power is 500W, peak power is 2000W.
Powder coated grille can be used outdoors for 5 years.
The foam backside of the grille can prevent the rain.
The new paint materials and advanced painting
technology make the surface very rigid.
MU Series Pro Loudspeaker System
MU18B
Description
B3 MU18B is a subwoofer adoping new structure and new
painting technology in MU family. It integrates a 18" /8ohm
woofer with 100mm voice coil. The rated power is 500W,
peak power is 2000W. Symmetrical magnet circuit design
reduce the impar HD effectively and enhance the LF sound
quality. .
Cabinet is made of 18mm 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 ultraWeatherability, can be used outdoors for 5 years. The
backside foam of grille can prevent the rain.
The special feet in the bottom can assure the stable working.
MU18B is mainly designed for the applications in conference
room,multifunctional hall, small auditorium, church,
living performance.
Application
Church
Conference Room
Multifunctional Hall
Medium And Small Auditorium
Medium And Small Living Performance
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MU18B
MU Series Pro Loudspeaker System
Two NL4 connectors are available for amplifier connections. Paralelled connector is very convenient for another speaker
connection.
Terminal Plate
CONNECTION
MU18B
Warranty does not
cover damage caused
No.:
by incorrect installation,
operation or overload.
1+ 1- INPUT
INPUT
1+ 1- : INPUT
OUTPUT
FREQUENCY
POWER(RMS)
SENSITIVITY(1W/1m)
IMPEDANCE
NET WEIGHT
ELDER AUDIO MANUFACTURE CO., LTD
1-
2-
2+
1+
40Hz-300Hz
500W
97dB
8
38kg
NL4 Connection
1. Connect
1
2
System Connection Reference
BRIDGE IN
INPUT
MODE
BRIDGE
SIGNAL GND
PIN1:
PIN2:
PIN3:
SIGNAL +
SIGNAL -
PARALLEL
STEREO ON
CHA
LF FILTER
CHB
50HZ
25HZ
5HZ
CLIPLIMITER
Serial no:
OUTPUT ASSIGNMENT:
CHA:
PIN 1+ :
PIN 1 - :
PIN 2+ :
PIN 2 - :
BRIDGE MONO OUTPUT:
PIN1+ : SIGNAL
CHA :
OFF
CHA SIGNAL
CHA GND
CHB SIGNAL
CHB GND
2. Disconnect
1
-
A
+
GROUND
CHB:
+
OFF
ON
-
BRIDGE
+
B
CHB SIGNAL
PIN 1+ :
-
CHB GND
PIN 1 - :
PIN 2+ :
PIN 2 - :
PIN2+ :
GND
2
CHA OUTPUT
CHB OUTPUT
3
1+
1-
!
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
Special design for big power
POWER
CABLE
+
LOW
-
FUSE
MU18B
MU18B
Attention: The impedance of connected speaker must match the impedance of amplifier output.
Attention: Make sure the polarity of speaker and amplifier correctly.
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CONNECTION
Speaker Wiring
1. Banana plugs to NL4
MU Series Pro Loudspeaker System
MU18B
Connect to amplifier
Connect to speaker
2-
1+
2+
1-
2. NL4 to NL4
Connect to amplifier
2-
1+
2+
1-
Connect to speaker
2-
1+
2+
1-
3. Consumption curve of connection cable(Only for reference, the result is different if adopting the different cables)
250
Wire length Feet
200
150
100
50
0
Wire diameter mm
2
8 Ohm
4 Ohm
2 Ohm
0.5 0.75 1.0 1.5 2.5 4.0
76
61
46
30
15
0
Wire length Meters
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MU18B
MU Series Pro Loudspeaker System
INSTALLATION
Mounting Accessories
The support flange in the top of MU18B is for the pole
mounting application with MU12/MU15.
MU12/MU15
Installation Reference
1. Stack
MU18B
Warning: Make sure the mounting accessories
safety factor not less than 5:1 or meet the local
standard during installation .
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TECHNICAL SPECIFICATION
MU Series Pro Loudspeaker System
MU18B
Specification
System:
Woofer :
Frequency response(-3dB):
Frequency response(-10dB):
Sensitivity(1W@1m):
Max.SPL(1m):
Power:
Rated impedance:
Cabinet:
Mounting accessories:
Handle:
Painting:
Connector:
Cabinet dimension:
(WDH)
Package dimension:
(WDH)
N.W.(pc):
G.W.(pc):
Optional mounting accessories:
Passive low-frequency speaker
1 18" W oofer
1
40Hz-300Hz
35Hz-600Hz
2
97dB
3
124dB/130dB(PEAK)
500W (RMS)
4
1000W (MUSIC)
2000W (PEAK )
8 Oohms
18mm birch plywood
Fixed supporting base
4 wooden handles
Cabinet coated by Polyurethane paint; grille
is powder coated
NL4 2
600 640 550mm
(23.6 25.2 21.7in)
750 710 670mm
(29.5 28.0 26.4in)
38kg(83.6lb)
44kg(96.8lb)
Speaker stand
Speaker T esting 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 output 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 instant power 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 Power
is the power when the speaker will not incur hot damage or
mechanics damage.
Frequency response curve & Impedance curve
110
100
90
80
Sensitivity (dB)
70
60
Frequency response curve
Impedance curve
Frequency (Hz)
50
35
Impedance (Ohms)
10
7
200001000010001005020
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MU18B
MU Series Pro Loudspeaker System
2D Dimension
Top view
600mm
[23.62in]
TECHNICAL SPECIFICATION
640mm
[25.20in]
Side view Back view
Front view
550mm
[21.65in]
Bottom view
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Notes:
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