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.

MU12Ba - 12" Active Subwoofer
MU12Ba - 12" Active Subwoofer
MU12Ba - 12" Active Subwoofer


12" Active Subwoofer

The Beta Three® portable and installed subwoofer loudspeaker can be used in applications including sound reinforcement in Houses of Worship, Events, Clubs, Rehearsal Halls and Ballrooms etc. The MU Active Series delivers extraordinary performance at unmatched value. 


  • High output SPL and sensitivity
  • 1 x 12” high power low frequency driver
  • 350w power amplifier built in
  • Volume control
  • High cut control on output
  • Limiter switch
  • Computer aided design to optimise frequency and phase response
  • Suitable for use as a main subwoofer
  • Portable system or permanent installation (floor only)
  • Suitable for use with any full range or mid/high speaker cabinets for extended low frequency, high quality music reproduction
  • Integrated 35mm pole receptacle for mounting full range or mid/high speaker cabinets
  • Powder coated grill with foam backing
  • Durable Polyurethane textured base paint


Acoustical specifications
Frequency Response(-3db):
Max SPL @ 1m:
1 x 12" Neodymium woofer
Input/Output section
Input signal:
Balanced 20kΩ
Input Connectors:
1 x Combo 6.35/XLR Input, 1 x XLR Output
Power section
Total Power:
450W(RMS); 900W(MUSIC); 1800W(PEAK);
Nominal Impedance (Ohm):
Voltage range:
AC 220V-240V~, 50/60Hz (or AC 110V-120V~, 50/60Hz)
Physical specifications
Cabinet/Case Material:
15mm birch plywood
2 x Wooden handles
Cabinet coated by Polyurethane paint; grille is powder coated
Dimension (W x D x H):
460 x 452 x 370mm / (18.1 x 17.8 x 14.6in)
Package Dimensions (W x D x H):
550 x 550 x 470mm / (21.7 x 21.7 x 18.5in)
Net Weight:
22.5 kg / 49.6 lb
Gross Weight:
24.5 kg / 54 lb

MU12Ba Application

    MU12Ba Installation

      MU12Ba Parts

        MU12Ba Collocation



            MU12Baβ3 MU12Ba Datasheet 1.0MU12Ba  200KB 2022-05-21 22:54:55
            β3_MU12Ba_PA_Chinese_Manualβ3_MU12Ba_PA_Chinese_Manual 1β3_MU12Ba_PA_Chinese_Manual  1081.06KB 2018-07-12 02:25:39
            β3_MU12Ba_PA_English_Manualβ3_MU12Ba_PA_English_Manual 1β3_MU12Ba_PA_English_Manual  865.44KB 2018-07-12 02:25:39