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.

MU215 - Dual 15" Two Way Full Range Speaker
MU215 - Dual 15" Two Way Full Range Speaker


Dual 15" Two Way Full Range 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
  • 2 x15” high power Neodymium transducers with 75mm voice coil
  • 1 x 3” compression driver
  • 90º x 40º coverage pattern
  • 2 x NL4 connectors
  • Computer aided design to optimise frequency and phase response
  • Cabinet design for FOH use
  • Suitable for use as a main system with or without sub speaker augmentation
  • Portable system (stand), or permanent installation (wall, ceiling)
  • Adjustable flying track on the top and bottom of the speaker
  • Arrays with MU18B and MU18Ba high power sub speakers for extended low frequency, high quality music reproduction
  • 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):
90° x 40°
Compression driver:
1 x 3" HF Compression Driver
2 x 15" LF
Input/Output section
Input Connectors:
2 x NL4
Sensitivity (1W @ 1m):
Processor section
Crossover frequencies:
Power section
Total Power:
600W(RMS); 1200W(MUSIC); 2400W(PEAK);
Nominal Impedance (Ohm):
Physical specifications
Cabinet/Case Material:
18mm birch plywood
4 x Wooden handles
Cabinet coated by Polyurethane paint; grille is powder coated
Dimension (W x D x H):
530 x 530 x 1075mm / (20.9 x 20.9 x 42.3in)
Package Dimensions (W x D x H):
660 x 660 x 1195mm / (26 x 26 x 47in)
Net Weight:
48 kg / 105.8 lb
Gross Weight:
56.5 kg / 124.6 lb

MU215 Application

    MU215 Installation

      MU215 Parts

        MU215 Cases

          MU215 Collocation



              MU215β3 MU215 Datasheet 1.0MU215  200KB 2022-07-05 20:41:52
              β3_MU215_PA_Chinese_Manualβ3_MU215_PA_Chinese_Manual 1β3_MU215_PA_Chinese_Manual  1339.87KB 2018-07-12 02:25:39
              β3_MU215_PA_English_Manualβ3_MU215_PA_English_Manual 1β3_MU215_PA_English_Manual  1081.53KB 2018-07-12 02:25:39