MU Series Wood Speaker

MU Series Wood Speaker

The Beta Three® MU series is a series of professional speakers ideally suited for a wide range of portable and installed applications. It is highly flexible and powerful in providing very high output and dynamics with a smooth frequency response. The MU series is available in various sizes and both active and passive versions. Whether it is for music or vocal reproduction, the MU series perfectly satisfies the needs of our users.

MU12M - 12" Two Way Full Range Monitor Speaker
MU12M - 12" Two Way Full Range Monitor Speaker


12" Two Way Full Range Monitor Speaker

Portable and installed PA loudspeakers used in applications including sound reinforcement in Houses of Worship, Events, Clubs, Rehearsal Halls and Ballrooms etc. The MU Series delivers extraordinary performance at unmatched value. 


  • High output SPL and sensitivity
  • 1 x 12” high power Neodymium transducer with 75mm voice coil
  • 1 x 3” Neodymium compression driver
  • Passive configuration
  • 45º x 45º controlled coverage pattern
  • Computer aided design to optimise frequency and phase response
  • Cabinet design for monitor use
  • Portable system or for permanent installation
  • For ease of cabling there is an NL4 connector on either side of the speaker
  • Powder coated grill with foam backing
  • Durable Polyurethane textured base paint
  • 1 x NL4 connector included in packaging


Acoustical specifications
Frequency Response(-3db):
Max SPL @ 1m:
Dispersion (H x V):
45° x 45°
Compression driver:
1 x 3" HF Compression Driver
1 x 12" LF
Input/Output section
Input signal:
Balanced 20kΩ, Unbalanced 10kΩ
Input Connectors:
2 x NL4
Sensitivity (1W @ 1m):
Processor section
Crossover frequencies:
Power section
Total Power:
350W(RMS); 700W(MUSIC); 1400W(PEAK);
Nominal Impedance (Ohm):
Physical specifications
Cabinet/Case Material:
15mm Birch Plywood
2 x Wooden handles
Polyurethane-based painting. Steel grille is coated by dots to provide strong ultra-Weatherability
Dimension (W x D x H):
410 x 548 x 450mm / (16.1 x 21.6 x 17.7in)
Package Dimensions (W x D x H):
650 x 500 x 510mm / (25.6 x 19.7 x 20.1in)
Net Weight:
19.3 kg / 42.5 lb
Gross Weight:
21.5 kg / 47.4 lb

MU12M Application

    MU12M Installation

      MU12M Parts

        MU12M Collocation



            MU12Mβ3 MU12M Datasheet 1.0MU12M  200KB 2022-05-21 19:16:19
            β3_MU12M_PA__English_Manualβ3_MU12M_PA__English_Manual 1β3_MU12M_PA__English_Manual  416.66KB 2018-07-12 02:25:39
            β3_MU12M_PA_Chinese_Manualβ3_MU12M_PA_Chinese_Manual 1β3_MU12M_PA_Chinese_Manual  643.71KB 2018-07-12 02:25:39
            β3_MU12M_PA_English_Manualβ3_MU12M_PA_English_Manual 1β3_MU12M_PA_English_Manual  416.66KB 2018-07-12 02:25:39