Beta Three MU series User manual

UM-MU401a-20170519 VerA
MU401a
User Manual
4" Two Way Full Range Speaker Active
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 this product to rain or moisture.
Do not block any ventilation openings. Install according to instructions .
Do not install this 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 symbol 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 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
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物品规格
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物品名称
（图名）
专业音箱
英文说明书 科威特01/β3/MU401a

MU401a
2
CONTENT
CONTENT
Product information updated without
notification, please visit www.beta3pro.com for
latest update.
may be
MU Series Pro Loudspeaker System
版本 第3页 共10页
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三基音响科技有限公司
商品劳务号
物品规格
物品类别
物品名称
（图名）
专业音箱
英文说明书 科威特01/β3/MU401a
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Main Features
Product Description
Applications
INSTALLATION
Installation Accessories
Installation Reference
PRODUCT INTRODUCTION
Technical Sheet
Frequency Response And THD Curve
2D Dimension
TECHNICAL SPECIFICATION
AMPLIFIER MODULE
Introduction Of Amplifier Module

MU401a
3
MU Series Pro Loudspeaker System
Applications
churches/temples
small auditoriums
multifunction halls
meeting rooms
schools
shopping malls
transport terminals
theme parks
4" Two Way Active Full Range Speaker
PRODUCT INTRODUCTION
版本 第4页 共10页
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三基音响科技有限公司
商品劳务号
物品规格
物品类别
物品名称
（图名）
专业音箱
英文说明书 科威特01/β3/MU401a
MU401a
Main Features
Product Description
With 4 inches all frequency unit and 25 core compression
of small column speaker.
New generation Class-D amplification for MF / LF,
Class-AB for HF.
Wide voltage input covers from 100V to 240V.
Dedicated STAND-BY switching mode for green
energy saving.
Master volume control, with different signal
indicators on real panel.
Multiple hanging points, standard pole mount
socket and optional hanging accessory.
β3 MU401a is a three-way active column speaker system
comprising of 1x4"LF, 1x1"compression driver. The amplifier
module is a two-channel design with Class-D solution for
MF/LF and Class-AB solution for HF, which keeps high effi-
ciency and power rating. The wide voltage input range from
100V to 240V enables worldwide use with voltage safety.
A STAND-BY function is active to work at power consumption
less than 0.5W. The wooden enclosure is built with 6 rigging
points at both sides for smart hanging installation. There
is also a pole mount socket at bottom to support stand
vertically. .

ON
OFF
POWER
AC INPUT: 240V~50Hz
FUSE: T2.5AL/250V
MAXMIN
VOLUME
PEAK
SIGNAL
INPUT
OUTPUT
PARALLEL
CONTROL
STANDBY
ACTIVE
NO:
STANDBY
ENABLE DISABLE
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
MU401a
POWER(RMS): 50W
POWER(PROGRAM): 100W
POWER(MAX): 200W
Designed In Germany
Made In PRC
4
MU Series Pro Loudspeaker System AMPLIFIER MODULE
版本 第5页 共10页
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商品劳务号
物品规格
物品类别
物品名称
（图名）
专业音箱
英文说明书 科威特01/β3/MU401a
MU401a
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11
1
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3
10
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Introduction Of Amplifier Module
1. STANDBY mode switch
2. Master volume control
3. STANDBY indicator
4. PEAK indicator
9. Signal output
10. Power supply socket
11. Fuse
5. Signal indicator
6. Power indicator
7. Power switch
8. Signal input

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2. L-Bracket
MU Series Pro Loudspeaker System
The standard flying mounting hardware is very convenient
for different installations and applications.
INSTALLATION
Installation Accessories(Optional) Installation Reference
1.Wall bracket
1.Hanging A(L-Bracket)
2.Hanging B
3.Hanging C(L-Bracket)
Warning: Always ensure the mounting accessories
safety factor is not less than 5:1 or that it meets the
local standards.
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物品名称
（图名）
专业音箱
英文说明书 科威特01/β3/MU401a
MU401a

6
MU Series Pro Loudspeaker System TECHNICAL SPECIFICATIONS
版本 第7页 共10页
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（图名）
专业音箱
英文说明书 科威特01/β3/MU401a
MU401a
Sensitivity (dB)
Frequency (Hz)
Specification
Frequency response(-3dB):
Max.SPL(1m):
Transducer:
Input:
Connector:
Input impedance(line):
Input level:
Input overloading level:
Wire connection:
Heat radiation:
Power cable:
Safety voltage range:
Power consumption(static) :
Power consumption(dynamic) :
Cabinet:
Painting:
Cabinet dimension:
Packing dimension:
Net weight:
Gross weight:
100Hz-20kHz
101dB/107dB(PEAK)
1 4" Woofer, 8ohm×
one channel balanced input
XLR for input, XLR for output
20kohm balanced input,10kohm unbalanced input
pin 1: ground; pin2: signal +; pin3: signal -
Forced air-cooled drives
UK power socket
3.5W
10W
Durable textured finish; grille is powder coated
Horizontal 90°，Vertical 90°
1 1 ,8×" textile dome tweeter ohm
Dispersion:
Optional Accessories:
Frequency response curve & THD curve
Maximum input level 8 V peak
1V±10%(630Hz/RMS)
3.1kg(6.8 lbs)
3.5kg(7.7 lbs)
144×146×214mm(5.7×5.7×8.4in)
200×200×281mm(7.9×7.9×11.1in)
AC 100V-240V 50Hz/60Hz~
Wall bracket, L-Bracket
Handle : 1 Wooden Handle ×
10k5k2k1k500200100502 020 20kHz
110
100
90
80
70
60
Frequency Response
2nd Distortion
3rd Distortion
15mm plywood construction

7
144mm
[5.7in]
146mm
[5.7in]
214mm
[8.4in]
MU Series Pro Loudspeaker System
Top view
Front viewSide view Back view
Bottom view
Dimensions
TECHNICAL SPECIFICATIONS
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物品名称
（图名）
专业音箱
英文说明书 科威特01/β3/MU401a
MU401a

Notes:
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文件（图）号
三基音响科技有限公司
商品劳务号
物品规格
物品类别
物品名称
（图名）
专业音箱
英文说明书 科威特01/β3/MU401a

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文件（图）号
三基音响科技有限公司
商品劳务号
物品规格
物品类别
物品名称
（图名）
专业音箱
英文说明书 科威特01/β3/MU401a
Made In PRC
Designed In Germany