L-Acoustics LA4 Power Amplifier

L-Acoustics LA4 Power Amplifier

The LA4 amplified controller belongs to the generation of high-end integrated controllers entirely dedicated to the comprehensive operation of L-ACOUSTICS loudspeaker systems. The LA4 combines in a 2U lightweight chassis the resources of a 2 x 4 DSP engine driving four channels of amplification delivering up to 1000 watts each, a comprehensive library of factory presets, a user-friendly front panel interface, two I/O Ethernet connection ports for network remote control, a connection panel for audio inputs and speaker outputs, and a slot for optional AES/EBU input board.

Specifications : 

• Output power : EIA (1 % THD, 1 kHz, all channels driven),
  • 4 x 800 W @ 8 Ω (4 x 930 W peak)
  • 4 x 1000 W @ 4 Ω (4 x 1600 W peak)
• Max output voltage : 125 V (Peak voltage, no load )
• Circuitry : Bipolar, Class H 2-step high efficiency circuit
• Digital Signal Processor : Two cascaded 24 bit A/D converters (130 dB dynamic range), DSP SHARC 32 bit / floating point, 96 kHz sampling rate
• Latency : 3.9 ms
• Frequency range : 10 Hz–30 kHz (-0.1/+0.15 dB @ 8 )
• Distortion THD+N (typical) : < 0.03 % (20 Hz-10 kHz, 8 , 11 dB below rated power)
• Output dynamic range : 112 dB (20 Hz-20 kHz, 8 , A-weighted)
• Amplification gain : 32dB
• Noise level : -73 dBV (20 Hz–20 kHz, 8 , A-weighted)
• Input impedance : 22 k (balanced)
• Max input level : 22 dBu (balanced, THD 1 %)
• Channel separation : > 80 dB (@ 1 kHz)
• Damping factor : > 400 (8 , 1 kHz and below)