L-Acoustics LA12X, Руководство пользователя

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Technical description
Power supply and amplier section
The LA12X is a green amplied controller that relies on a universal SMPS (Switch Mode Power Supply) suitable for
mains from 100 to 240 V (±10 %). The SMPS features a PFC (Power Factor Correction) which maximizes the amplier
efciency and takes advantage of nearly 100 % of the electrical power available with a very high tolerance to unstable
mains. This represents a reduction of the electrical power requirements (cable gauge, power conditioning, etc.) for
substantial savings.
The Class D amplication circuits ensure the LA12X energy-efciency for minimal heat dissipation. LA12X delivers
4 x 1400 W RMS at 8 Ω, 4 x 2600 W RMS at 4 Ω or 4 x 3300 W RMS at 2.7 Ω.
Speaker outputs
The LA12X features two 4-point speakON connectors and one 8-point CA-COM connector for loudspeaker outputs.
Speaker protection
The L-DRIVE transducer protection system provides a dual analysis of both signal intensity and voltage in real-time and
RMS. Under extreme conditions, when component membranes reach the over-excursion zone or if the coil temperature
reaches a critical point, L-DRIVE is activated and acts as a power regulator.
As a result, the amount of power delivered at any channel is adjusted to the dynamic and thermal capacity of each
individual transducer.
Monitoring and control
User interface
The front panel user interface provides:
— real-time monitoring functionalities via the LED display (signals presence and level) and the LCD screen (system
parameters)
— instant access to navigation and parameters control using the encoder wheel and the six keys
See also illustration in section Front and rear panels (p.11).
Operating instructions
Refer to section Operation (p.30) for detailed operating instructions.
L-NET remote control network
The integration of the L-NET Ethernet-based network, with its high speed data transfer protocol up to 1 Gbit/s, allows up
to 253 amplied controllers to be controlled and monitored in real-time from LA Network Manager.
Multiple network topologies such as daisy-chain, star and hybrid are congurable. The computer running LA Network
Manager and the amplied controllers are connected to each other using industry standard CAT5e U/FTP cables (or
higher category) tted with RJ45 connectors.
The LA12X connects to the network via the two etherCON sockets located on its rear panel.
Operating instructions
Refer to the
LA Network Manager video tutorial
for detailed operating instructions.
Third party management solutions
L-Acoustics provides SNMP support to facilitate the integration via third party control and monitoring systems. As
a certied member of the Crestron
®
and Extron
®
partner programs, L-Acoustics also provides software modules
allowing control integration into their automation systems.
Crestron is a trademark or registered trademark of Crestron Electronics, Inc. in the United States, other countries or both.
Extron is a registered trademark of Extron Electronics.
LA12X user manual (en) version 2.0 14