L-ACOUSTICS LA4X [34/47] La4x amplified controller
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L-ACOUSTICS LA4X [34/47] La4x amplified controller

L-ACOUSTICS LA4X [34/47] La4x amplified controller
LA4X AMPLIFIED CONTROLLER
USER MANUAL
VERSION 2.0
LA4X_UM_EN_2.0 w w w . l - a c o u s t i c s . c o m 34
Value ranges
Gain values are adjustable between -60 dB and +15 dB.
Delay values are adjustable from 0 to 1000 ms (96000 samples / 343.33 m / 1126.40 ft at 20 °C).
Refer to section 4.11.2 for setting the delay unit.
Value setting resolution
Turn the encoder wheel to obtain fine resolution (last digit).
Press and turn the encoder wheel to obtain coarse resolution (second to last digit).
Total delay
The total delay is the sum of the group delays (set in LA NETWORK MANAGER) and the output channel
delay. The total delay cannot exceed 1000 ms.
Preset parameters saving
Preset parameter modifications apply immediately but are not automatically saved to the current preset (they
will be lost if the preset is reloaded). Use the STORE PRESET function to save the current preset with its
settings to a user memory (see section 4.5).
4.8 CLEAR GROUP PARAMS
The group parameters (names, gains, delays and contour EQs) defined in LA NETWORK MANAGER (refer to
the LA NETWORK MANAGER video tutorial) can be cleared.
Group and preset parameters
The group parameters apply to a set of amplified controllers that are part of groups while the preset
parameters apply to a single amplified controller (refer to section 4.7).
The CLEAR GROUP PARAMS function only clears the group parameters and does not clear the preset
parameters.
To clear the group parameters follow these steps (see also Figure 31):
From the main menu select CLEAR GROUP PARAMS. 1.
Press the OK key or the encoder wheel (or ESC to abort). 2.
If the controller displays L-NET ACTIVE. CANNOT CLEAR it means that the operation is not allowed since the
amplified controller is remote controlled. Press the ESC key to abort. — END —
If the controller displays NO GROUP DEFINED. CANNOT CLEAR it means that the operation is not possible as
no group are defined. Press the ESC key to abort. — END —
If the controller displays ARE YOU SURE? OUTPUTS MUTED! it means that the operation can be continued and
that all outputs will be muted as a precaution. Continue the procedure.
Press the OK key or the encoder wheel (or ESC to abort). 3.
The main screen is displayed, all group parameters are now reset and all outputs are muted.
Figure 31: Clearing the group parameters
Group parameters persistence
The group parameters remain active even if the controller is disconnected from the computer running LA
NETWORK MANAGER (controller in the standalone mode), even if it is shut down and restarted. Moreover,
the group parameters are not preset dependent: they will remain the same even if a new preset is loaded.
Therefore, when getting a controller for a standalone application that has been previously used within a
network, L-ACOUSTICS
®
recommends using the CLEAR GROUP PARAMS function to clear all group
parameters as they cannot be seen and accessed via the front panel user interface.
Group information
It is possible to verify if output channels of the controller are part of groups pressing and holding the ESC or
OK key from the main screen (refer to section 4.3.1, group information).

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