L-Acoustics LA8, Руководство пользователя

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w w w . l - a c o u s t i c s . c o m
9 en
EN
4 SYSTEM CONCEPT
4.1 Presentation
The
L-ACOUSTICS ® LA8 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 LA8 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 LA8 platform has the following characteristics:
•
A 4 channel high efficiency amplifier section fed by two inputs that can deliver up to 4 x 1800 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 FIR) and an exclusive L-DRIVE protection
system for the transducers, allowing for optimum system performance.
•
A complete on board preset library stored in 89 memory locations to cover all principal
L-ACOUSTICS loudspeaker system configurations for a selected range of L-ACOUSTICS speakers,
and 10 user memory locations.
•
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. In this case the controllers are remotely monitored by the
complementary PC-based LA NETWORK MANAGER software (Windows
® compatible).
•
Two NEUTRIK
®
NL4FC Speakon
®
connector and one ITT
®
CANNON
®
CA-COM
®
connector for
loudspeaker outputs.
•
A rear-panel plug-in card slot also allowing the LA8 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 follows:
•
4 Way active mono system
•
2 Channel stereo system (for subwoofers or passive enclosures)
•
2 Way active stereo system
• Hybrid mono system (for subwoofers and active enclosures)
•
Hybrid stereo system (for subwoofers and passive enclosures)
•
Cardioid mono subwoofer system
Note:
The LA8 preset description sheet is available in appendix 10.1. The LA4 and LA8 preset description sheets are
available on the L-ACOUSTICS internet website @ www.l-acoustics.com .