Line Array Series

Line Array Series

The Beta Three® line array series is a series of outstanding rental and touring solutions for live entertainments, sports events, speech reinforcement, and other venues where a line array system is desired. The line array series contains various models consisting of active and passive models for horizontal and vertical deployment complemented by reliable flying equipment. Selected models are also available in the weatherproof version, making them ideally suited for any outdoor application requiring a line array system with state-of-the-art sound performance and optimal scalability.

SLA212Ba - Dual 12" Active Subwoofer


Dual 12" Active Subwoofer

β3 SLA212Ba is a compact subwoofer. It is used in middle to large size venues demanding high SPL and reliability. It helps building perfect playback system cooperating with T Series full range products.

Band-pass design helps SLA212Ba perform high SPL with small volume. The driver uses high powered 100mm diameter voice coil which is wrapped by copper wires outside. Voice coil Skelton is made of TIL material that improves the tolerance of voice coil power suffering. Ferrite magnetic circuit provides very high BL and line magnetic circuit.

Power compression reduces by good heat radiating performance and harmonic distortion also does so by iron choking ring limiting current. Rated power can reach 8000w and short max power is up to 32000w (GB/T9396-1996 Standard).



  • Imported PowerSoft amplifier module: LITEMOD HV+DSP-LITE

  • LITEMOD HV is a compact and powerful functions amplifier module which can be loaded under high impedance with [email protected] or [email protected] bridge mode,it's adopted compact PFC power with high output to ensure reliability and conformity under all working situations.

  • DSP-LITE is a 2 inputs / 3 outputs high performance processing board,it's integrating an extremely compact interface panel compatible with mono-in/link-out or stereo-in configurations. The built-in USB port allows to access DSP-Lite processing capabilities directly from the PC running Armonía Pro Audio Suite™ software, to easily program and store up to 4 presets that can be selected by the end user.

  • Dual 12" bass reflex active bass speaker.

  • Frequency response(-3dB)55Hz-150Hz.

  • LF SPL: 94dB, Max SPL: 126dB.

  • RMS: 800W, PEAK: 3200W.

  • The newly paint with advanced spraying technics makes cabinet more durable.

  • The customized flying frame and rigging parts of SLA212Ba and SLA10Ha which provide easy installation and take down.

  • The bass reflex design of SA212Ba decreases the wind interference to low frequency and improve the sound quality.

  • The Customized flying frame can be used to hang up or stacking, easy for installation and take down.

  • SLA212Ba sound quality: Clean and powerful.


Acoustical specifications
Frequency Response(-3db):
Max SPL @ 1m:
2 x 12" LF
Input/Output section
Input Connectors:
Output connectors:
Power section
Total Power:
800W(RMS); 1600W(MUSIC); 3200W(PEAK);
Nominal Impedance (Ohm):
Cooling fan
Power consumption(static):
Power consumption(rated):
Voltage range:
Physical specifications
Cabinet/Case Material:
Trapezoidal Cabinet
Specialized hardware
Black Polyurethane painting for cabinet & Black Powder coated grille,Grill with cloth.
Dimension (W x D x H):
616 x 487 x 530mm / (24.3 x 19.2 x 20.9in)
Package Dimensions (W x D x H):
726 x 598 x 650mm / (28.6 x 23.5 x 25.6in)
Net Weight:
45 kg / 99.2 lb
Gross Weight:
49 kg / 108 lb

SLA212Ba Application

    SLA212Ba Installation

      SLA212Ba Parts

        SLA212Ba Cases

          SLA212Ba Collocation



              SLA212Baβ3 SLA212Ba Datasheet 1.0SLA212Ba  200KB 2022-07-03 20:36:24
              β3_SLA212Ba_PA_Chinese_Manualβ3_SLA212Ba_PA_Chinese_Manual 1β3_SLA212Ba_PA_Chinese_Manual  6809KB 2018-12-07 01:58:07
              β3_SLA212Ba_PA_English_Manualβ3_SLA212Ba_PA_English_Manual 1β3_SLA212Ba_PA_English_Manual  5172KB 2018-12-07 02:11:10