Beta Three MU12 M 12 inch Two Way Full Range Monitor User Manual
- June 5, 2024
- Beta Three
Table of Contents
Beta Three MU12 M 12 inch Two Way Full Range Monitor
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 place naked flames (such as candles) close to the
equipment.
- Read the instruction manual first before using this product.
- Please keep this manual for future reference
- Pay attention to all warnings.
- Obey all operating instructions.
- Do not expose this product to rain or moisture.
- Clean this equipment with a dry cloth.
- Do not block any ventilation openings. Install according to manufacturer’s instructions.
- Do not install this product near any heat source, such as , heater, burner, or any other equipment with heat radiat ion .
- Only use spare parts by manufacturer.
- Pay at tent ion to the safety symbol on the of the cover
INTRODUCTION
Features
- 12″ Neodym ium w oofer w ith 3″ voice coil.
- Neodym ium compression driver w ith 3″ voice coil.
- Dispersion 45 45 .o
- Monitor angle 50 .
- Sensitivity is 97dB, Max. SPL is 121dB.
- RMS pow er is 350W, peak pow er is 1400W.
- Ergonom ic cabinet design.
Description
3 MU12M is a professional and compact monitor system, it is suitable for all
the demanding monitor applications. .
Adopt ed Neodym ium com pression driver int egrat e 3″ polymer diaphragm to
assure the big power output and delivery natural sound performance, the
dispersion is 45 x45 . 12″ Neodymium woofer integrate 3″ voice coil and latest
improved magnet circuit&short-circuit ring to achieve the low distortion and
Max.clarity under high SPL.
Very compact design, lightweight and very powerful.
Perfect protection circuit design makes sure the system working smoothly and
safely. .
MU12M produces 121dB SPL continuously and 80-16kHz frequency response,
suitable for different applications from small to large scale, including the
speech and full range applications. . .
MU12M adopts the ergonomic cabinet design. Large arc cabinet effectively
reduce the collision harm, round handle design make the carrying very balanced
during the transport. NL4 connectors are available at the both sides to
optimize the system wiring. Cabinet is made of 15mm Russian birchplywood with
advanced environmental protection. polyurethane-based painting. Steel grille
is coated by powder to provide strong ultra-Weatherability. .
Applications
- Auditorium
- Theater
- Multifunctional hall
- Dance Club
- Hall Performance
- Living Performance
CONNECTION
Tw o NL4 connectors are available for amplifier connections. Paralleled
connector is very convenient for another speaker connection.
Speakon
NL4 Wiring Connection
Attention: The impedance of connected speaker must match the impedance of
amplifier output.
Attention: Make sure the polarity of speaker and amplifier correctly.
Speaker Wiring
Consumption curve of connection cable(Only for reference, the result is
different if adopting the different cables) 
TECHNICAL SPECIFICATION
Specification
Speaker testing method
-
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. -
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. -
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. -
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: 
2D dimension 
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