Power Supply And Amplifier Section; Speaker Outputs; Monitoring And Control; User Interface - L-Acoustics LA4X User Manual

LA4X
Amplified Controller
user manual
VERSION 4.0
2.2.3

Power supply and amplifier section

LA4X is a "green" amplified controller that relies on a universal Switch Mode Power Supply (SMPS) s uitable for mains
from 100 to 240 V (±10 %). The SMPS features a Power Factor Correction (PFC) which maximizes the amplifier
efficiency and takes advantage of nearly 100 % of the electrical power available with a very high tolerance to unstable
mains. The PFC allows the LA4X to deliver as much power from a 10 A line as from a 16 A line on a conventional amp.
This represents a reduction of the electrical power requirements (cable gauge, power conditioning...) for substantial
savings.
The Class D amplification circuits ensure the LA4X energy-efficiency for minimal heat dissipation. LA4X delivers 4 x
1000 W RMS into 8 or 4 Ω with record hold times. Besides the high raw power rating at 8 Ω, the ability to deliver
energy (power x hold time) yields the best performance from loudspeaker systems, especially in LF reproduction.
2.2.4

Speaker outputs

The LA4X features four SpeakON connectors for loudspeaker outputs.
2.3

Monitoring and control

2.3.1

User interface

The front panel user interface provides (see also Figure 2):
 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.
Operating instructions
Refer to section 4 for detailed operating instructions.
2.3.2

L-NET remote control network

The design of complex systems is made possible by the integration of the L-NET Ethernet-based network. Thanks to
its high speed data transfer protocol of 100 Mbit/s, up to 253 amplified controllers can be controlled and monitored in
real-time from LA NETWORK MANAGER software.
Multiple network topologies such as daisy-chain, star and hybrid are quickly and easily configurable for full flexibility in
the required system architecture. The computer running LA NETWORK MANAGER and the amplified controllers are
connected to each other using industry standard CAT5e U/FTP cables (or higher category) fitted with RJ45 connectors.
The LA4X 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 certified member of the CRESTRON
software modules allowing control integration into their automation systems.
LA4X_UM_EN_4.0
® and AMX ®
w w w . l - a c o u s t i c s . c o m
partner programs, L-ACOUSTICS ® also provides
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