R Series Line Array

R Series Line Array

The Beta Three® R series is a series of compact line array loudspeaker system perfectly suited for various installed sound applications, including Houses of Worship, theme parks, multifunctional halls, auditoriums, schools, and many other venues. The R series is a complete sound reinforcement system comprises of 4 full-range speakers and a subwoofer designed with ease to set up and operate.

R4/R8+ - Compact Active Line Array System
R4/R8+ - Compact Active Line Array System
R4/R8+ - Compact Active Line Array System
R4/R8+ - Compact Active Line Array System
R4/R8+ - Compact Active Line Array System


Compact Active Line Array System

The Compact Active Line Array loudspeaker system are used in applications including sound reinforcement for Houses of Worship, Events, Theme Parks, Multifunctional Auditoriums, Schools, and Transit Terminals etc. The R Series Compact Active Line Array systems delivers extraordinary performance where high speech intelligibility and natural sounding music is required at unmatched value. 


  • The system comprises of 4 x R4 mid/high boxes consisting of 1 x Ribbon and 2 x ” drivers per cabinet and 1 x R8 Subwoofer cabinet comprising of 2 x 8” drivers
  • Built-in power amplifier module and DSP speaker processing within the R8
  • The DSP includes PEQ, Crossover and Slope, Delay, Gain and Limiter and is rogramable via either RS232 or USB by PC
  • RS485 allows multiple systems to be connected together for control
  • Software included
  • Master volume control
  • XLR input and output connectors
  • Integrated rigging and speaker cabling included for the system
  • Rigging allows adjustment of R4 in 1° increments
  • Designed for high speech intelligibility and natural sounding music
  • Suitable for use as a main system with or without sub speaker augmentation
  • Permanent installation
  • Powder coated grill
  • Durable Polyurethane textured base paint
  • Available in either black or white


Acoustical specifications
Frequency Response(-3db):
Max SPL @ 1m:
Dispersion (H x V):
120° x 30-90°
Transducer Driver:
R4: 1 x Ribbon Driver HF + 2 x 4" MF; R8: 2 x 8" LF
Input/Output section
Input signal:
Balanced 20kΩ, Unbalanced 10kΩ
Input Connectors:
R4: 2 x NL4; R8: XLR Line Input/Output, XLR RS485 Input/Output, 2 x NL4 Output
Power section
Total Power:
4 x 75W HF; 1 x 300W LF(RMS);
Nominal Impedance (Ohm):
Voltage range:
AC 220V-240V~, 50/60Hz (or AC 110V-120V~, 50/60Hz)
Physical specifications
Dimension (W x D x H):
492 x 608 x 900mm / (19.4 x 23.9 x 35.4in)
Package Dimensions (W x D x H):
580 x 696 x 696mm / (22.8 x 27.4 x 27.4in)
Net Weight:
45 kg / 99.2 lb
Gross Weight:
50 kg / 110.2 lb

R4/R8+ Application

    R4/R8+ Installation

      R4/R8+ Parts

        R4/R8+ Collocation



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