The L-Acoustics LA4X is a highly versatile, 4-channel amplified controller designed to provide independent, granular control over smaller to medium-format L-Acoustics loudspeaker systems. Unlike the larger LA8 or LA12X which operate in paired or shared channel configurations for massive line arrays, the LA4X architecture features four discrete inputs and four discrete amplification channels, making it the ultimate solution for passive systems, stage monitors, and multi-zone distributed fills.
Key Specifications
- Power Output: Continuous RMS output with all channels driven:
- 4 x 1,000 Watts at 4 Ohms (or 8 Ohms)
- 4 x 400 Watts at 16 Ohms
- Channel Architecture: 4×4 matrix (4 independent analog/digital inputs mapped freely to 4 independent amplifier channels).
- DSP Platform: 96 kHz / 32-bit floating-point SHARC DSP for precise speaker management.
- Network Connectivity: Dual-port Ethernet switch for daisy-chaining control and digital audio.
- Weight & Size: Compact 2U rack unit weighing 11.3 kg (24.9 lbs).
Core Technologies & Features
- Green SMPS Power Supply: Equipped with an efficient universal switch-mode power supply featuring Power Factor Correction (PFC). This allows the amplifier to deliver full power even when running on unstable local grid conditions (anywhere from 85V to 265V).
- True 4×4 Custom Processing: Because each channel has its own dedicated DSP and amplifier block, a single LA4X can simultaneously run four completely different speaker types (e.g., driving one X12 monitor, one X8 front fill, and two separate SB15 subwoofers).
- L-DRIVE Transducer Protection: Features the same signature real-time thermal and displacement modeling as the LA8 R3, protecting speaker drivers without hard, audible clipping.
- Milan-Dante Network Integration: Modern production iterations natively support Milan/AVB and Dante digital audio streaming alongside traditional analog and AES3 inputs, offering full network redundancy.
