Product: L-acoustics LA12x

The LA12X relies on a proprietary switch mode power supply (SMPS) equipped with a DSP-controlled PFC, capable of delivering 12,000 W regardless of mains voltages (from 240 V down to 100 V.) The PFC offers high immunity to unstable mains and lowers typical power consumption by up to 40% for the same usage conditions i.e., more power is available to the output stages from a given circuit (16 A at 230 V mains, 30 A at 120 V mains).
In addition to the high raw RMS power rating, the ability to deliver energy (power x hold time) yields the best performance from loudspeaker systems, especially in LF reproduction.

The four LA12X inputs are available in analogue, AES and AVB. Four cascaded 24-bit and 96 kHz A/D converters at the
front-end yield an impressive encoding dynamic of 130 dB. AES/EBU digital inputs operate with sample rate converters from
44.1 kHz to 192 kHz. Automatic fallback functions make the creation of redundant audio paths possible with constant
delay and constant level.
12,000 W with record hold times
DSP controlled universal SMPS
Advanced Power Factor Correction
4 in x 4 out architecture
Boosted DSP resources
Accessible via “LA NETWORK MANAGER” only Accessible via “LA NETWORK MANAGER”
front-panel user interface depending on preset type L-ACOUSTICS parameters Manageable by groups and front-panel user interface depending on preset type L-ACOUSTICS parameters Manageable by groups

Operating at 96 kHz with 32 bit float precision, the DSP combines IIR and FIR filters to generate perfectly linearized phase
curves and significantly improved impulse responses for an even, more natural, transparent and realistic sound experience.

Amplification class Class D
Output power CEA-2006 / 490A (1% THD, 1 kHz, all channels driven)
4 x 1400 W RMS (at 8 ohm)
4 x 2600 W RMS (at 4 ohm)
4 x 3300 W RMS (at 2.7 ohm)
Power supply model Universal Switched Mode Power Supply (SMPS) with Power Factor Correction (PFC)
Power factor > 0.9
Mains rating 100 V - 240 V ~ ±10%, 50-60 Hz
Nominal current requirements 30 A for 100-120 V, 16 A for 200-240 V
Audio specifications
Frequency response 20 Hz - 20 kHz, ± 0.1 dB (at 8 ohm, 60 W output power)
20 Hz - 20 kHz, ± 0.1 dB (at 4 ohm, 120 W output power)
Distortion THD+N (20 Hz - 10 kHz) < 0.05% (at 8 ohm, 60 W output power)
< 0.1% (at 4 ohm, 120 W output power)
Output dynamic range (20 Hz - 20 kHz, 8 ohm, A-weigthed) > 114 dB
Noise level (20 Hz - 20 kHz, 8 ohm, A-weigthed) < - 72 dBV
Channel separation (at 1 kHz , 4 ohm) > 85 dB
Latency (for both analog and digital inputs) Standard operating mode: 3.84 ms
Low latency operating mode: 0.76 ms
Digital Signal Processor (DSP) 2 x SHARC 32-bit, floating point, 96 kHz sampling rate
I/O routing Flexible 4x4 routing matrix
Per output channel Built-in EQ station with 8 IIR, 3 FIR EQ filters
Array morphing (LF contour, zoom factor)
Air absorption compensation filters
Internal IIR and FIR EQ algorithms for speaker phase linearization and improved impulse responses
L-DRIVE protection (excursion, temperature and over-voltage)
Output delay 0 ms to 1000 ms
Transducers protection L-DRIVE: excursion / temperature / over-voltage
Circuits protection
Mains and power supply Over and under voltage / over temperature / overcurrent (fuse protection, and inrush current protection)
Power outputs Over current / DC / short circuit / rail over and under voltage / over temperature
Cooling Cooling fans with temperature control speed
Analog: 4 balanced analog line inputs with passively connected link
A/D conversion 4 cascaded 24-bit analog/digital converters (130 dB dynamic range)
Input impedance 22 k (balanced)
Max. input level 22 dBu (balanced, THD 1%)
Digital: 2 AES/EBU inputs (4 channels) with electronically buffered link and failsafe relay
Standard AES/EBU (AES3)
Sampling frequency (Fs) 44.1, 48, 88.2, 96, 176.4 or 192 kHz
Word length 16, 18, 20 or 24 bits
Synchronization Signal resampled to internal clock at 96 kHz
Sampling frequency 96 kHz (SRC referenced to the amplified controller internal clock)
Dynamic range 140 dB
Distortion (THD+N) < -120 dBfs
Bandpass ripple ± 0.05 dB (20 Hz - 40 kHz, 96 kHz)
Fallback mode AB to CD: digital to analog / digital to digital
Switchover conditions No clock, loss of lock, CRC error, bipolar encoding error or data slip
Constant delay Independent of input Fs
Constant level Upon user setting of AES/EBU gain, independent of input Fs
Input gain -12 dB to +12 dB, 0.1 dB steps
Revert to AES/EBU Upon manual user selection
Remote control and monitoring
Network connection Dual-port Ethernet Gigabit interface
L-Acoustics remote control software LA Network Manager 2
Third-party management solutions SNMP / Extron® / Crestron®
Physical data
Height 2U Weight 14.5 kg
Protection rating IP2X
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