L-Acoustics LA4, Руководство пользователя

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9 en
EN
4 SYSTEM CONCEPT
4.1 Presentation
The
L-ACOUSTICS ® LA4 Amplified Controller is at the heart of the L-ACOUSTICS integrated system approach. It
offers cutting edge loudspeaker Amplification, DSP, Network Control, and comprehensive System Protection in a single
ergonomic package. The performance level delivered by the LA4 allows for full optimization of all L-ACOUSTICS
speaker resources and deliver outstanding audio quality combined with the best possible transducer protection.
All L-ACOUSTICS loudspeaker systems will now benefit from the advanced and exclusive properties of the LA4 and
LA8 control platforms. As a result of the integrated approach all L-ACOUSTICS loudspeaker systems will be enhanced
by the superior performance of high end electronic platforms, allowing for perfect power matching combinations across
the entire product range.
Packaged in a compact 2U lightweight format chassis, the LA4 platform has the following characteristics:
• A 4 channel high efficiency amplifier section fed by two inputs that can deliver up to 4 x 1000 Watts
into 4 ohms yielding perfect power matching for a selected range of L-ACOUSTICS speakers.
• A DSP section featuring advanced filter algorithms (IIR and IFR) and an exclusive L-DRIVE protection
system for the transducers allowing for optimum system performance.
• A complete on board preset library stored in 99 memory locations to cover all principal
L-ACOUSTICS loudspeaker system configurations for a selected range of L-ACOUSTICS speakers.
• An intuitive and ergonomic user interface plus display for all configuration settings and status
information all fully accessible from the front panel.
• Two I/O Ethernet ports for networking up to 253 units in multiple network topologies via the
proprietary L-NET network.
• A complementary PC-based LA NETWORK MANAGER software (Windows ® compatible) with
remote network monitoring and control of the LA4 units.
• 4 NEUTRIK ® NL4FC Speakon connector for loudspeaker outputs.
• A rear-panel plug-in card slot also allowing the LA4 to be ready for multi-channel digital audio
networking implementation (this option will be available as a future development).
4.2 System Configurations
Driving four amplifier output channels through a DSP offers a wide range of options when it comes to system
configuration possibilities. The LA4 and LA8 onboard DSP preset libraries allow the Sound Engineer a high degree of
flexibility through the use of 6 system template configurations, as follow:
•
4 Way active mono system driven by a single input
•
4 Channel mono subwoofer system driven by a single input
•
2 Way active stereo system for the active speaker range
• 2 Channel stereo system for the passive speaker range
•
Hybrid mono system
•
Hybrid stereo system
Please refer to annex 10.1 for a complete preset library description of the LA4.