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.

MU8a - 8" Two Way Full Range Active Speaker
MU8a - 8" Two Way Full Range Active Speaker
MU8a - 8" Two Way Full Range Active Speaker


8" Two Way Full Range Active 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 Active Series delivers extraordinary performance at unmatched value. 


  • High output SPL and sensitivity
  • 1 x 8” high power Neodymium transducer with 34mm voice coil
  • 1 x 1.4” titanium diaphragm compression driver with Neodymium coaxial design
  • 90º x 90º controlled coverage pattern
  • Built-in power amplifier module
  • Master volume control
  • XLR input and output connectors
  • 120Hz low cut switch
  • 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, under balcony)
  • Arrays with MU12Ba active high power sub speaker for extended low frequency, high quality music reproduction
  • Powder coated grill with foam backing
  • Durable Polyurethane textured base paint


Acoustical specifications
Frequency Response(-3db):
Max SPL @ 1m:
Dispersion (H x V):
90° x 90°
Compression driver:
1 x 1.4" HF
1 x 8" LF
Input/Output section
Input signal:
Balanced 20kΩ, Unbalanced 10kΩ
Input Connectors:
6.35/XLR for input, XLR for output
Power section
Total Power:
180W(RMS); 360W(MUSIC); 720W(PEAK);
Nominal Impedance (Ohm):
Voltage range:
AC 220V-240V~, 50/60Hz (or AC 110V-120V~, 50/60Hz)
Standard compliance
CE marking:
Physical specifications
Cabinet/Case Material:
15mm Birch Plywood
Support flange, 5 x mounting points
Cabinet coated by Polyurethane paint; grille is powder coated
Dimension (W x D x H):
280 x 262 x 380mm / (11 x 10.3 x 15in)
Package Dimensions (W x D x H):
340 x 320 x 460mm / (13.4 x 12.6 x 18.1in)
Net Weight:
9.5 kg / 20.9 lb
Gross Weight:
10.5 kg / 23.1 lb

MU8a Application

    MU8a Installation

      MU8a Parts

        MU8a Collocation



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