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LA4X_UM_EN_4.0

 

 

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23

 

 

 

4.2.2

 

LED meters 

Four LED meters are located on the front panel above the LCD screen (see Figure 14). 

 

Figure 14: The four LED meters 

By default the LED meters monitor the state of the four output channels via six LED: 

LIMIT/CLIP 

The 

LIMIT/CLIP

 LED is lit in: 

 

orange when the limiter is activated (the output voltage is attenuated). 

 

red when the output voltage reaches the maximum level (signal clip). 

dB 

The 

-5 dB

-10 dB

 and 

-20 dB

 LED are lit in green when the output voltage reaches respectively 5, 10 

and 20 dB below the maximum level. 

SIGNAL 

The 

SIGNAL

 LED is lit in green when a signal is detected at the corresponding output of the amplified 

controller and when the output voltage reaches 0.1 V. 

LOAD

 

The 

LOAD

  LED  is  lit  in  green  when  a  load  is  connected  and  when  the  output  module  delivers  a 

minimum of 0.8 A. 

 

4.2.3

 

STATUS and L-NET LED 

The 

STATUS

 LED is lit in: 

 

green (see Figure 15) when the LA4X operates normally. 

 

red in case of firmware update or when a fault has been detected in the LA4X circuitry, indicating that a protection 

system is active (see Appendix A – Protection systems). 

The 

L-NET

  LED  is  lit  in  green  (see  Figure  15)  when  the  LA4X  is  remote  controlled  from  software  such  as  

LA NETWORK MANAGER (refer to the 

LA NETWORK MANAGER video tutorial

). 

 

Front panel commands 

The front panel commands remain accessible if the L-NET LED is lit. 

 

Figure 15: STATUS and L-NET LED 

 

4.2.4

 

OUT LED 

The 

OUTx

 LED (see Figure 16) is: 

 

lit (when output channel OUTx is muted. 

 

not lit (see Figure 16) when output channel OUTx is unmuted. 

 

Figure 16: The four OUT LED 

Содержание LA4X

Страница 1: ...LA4X Amplified Controller user manual VERSION 4 0 www l a cousti cs co m...

Страница 2: ...ided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particul...

Страница 3: ...to an AC power outlet rated 100 240 V 50 60 Hz with the following current values 20 A for 100 120 V 10 A for 200 240 V WARNING An apparatus with CLASS I construction shall be connected to a mains sock...

Страница 4: ...allation or operation of the product OBLIGATION This symbol notifies the user about instructions that must be strictly followed to ensure proper installation or operation of the product EQUIPMENT This...

Страница 5: ...ower supply and amplifier section 12 2 2 4 Speaker outputs 12 2 3 Monitoring and control 12 2 3 1 User interface 12 2 3 2 L NET remote control network 12 3 INSTALLATION 13 3 1 Mounting 13 3 2 Ventilat...

Страница 6: ...ELETE PRESET 31 4 7 PRESET PARAMETERS 32 4 8 CLEAR GROUP PARAMS 33 4 9 INPUT SETTINGS 34 4 9 1 INPUT MODE 34 4 9 2 FALLBACK MODE 35 4 9 3 AES EBU GAIN 36 4 10 MONITORING AND INFO 37 4 10 1 SPK HANDLIN...

Страница 7: ...his approach brings maximum discretization with a one to one link processing amplification transducer section CONVENTIONAL For applications requiring a high count of loudspeaker enclosures with optimi...

Страница 8: ...4 Software LA NETWORK MANAGER Remote control and monitoring of amplified controllers SOUNDVISION 3D acoustical and mechanical modeling Software documentation Refer to the LA NETWORK MANAGER video tuto...

Страница 9: ...terface and a Fast Ethernet device for network remote control 2 1 2 Front and rear panels Figure 2 LA4X front and rear panels Status LED 1 LED meters 2 LIMIT CLIP level audio level 20 10 5 dB SIGNAL p...

Страница 10: ...balanced The AES EBU input panel also features two XLR3 male link ports actively connected to the input ports with failsafe relay in case of mains absence They allow transmitting the input signals to...

Страница 11: ...roach combining IIR and FIR filters generates perfectly linearized phase curves and significantly improved impulse responses The 4 x 4 matrix architecture offers flexibility for various system configu...

Страница 12: ...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...

Страница 13: ...troller to the rack front rails Figure 4 LA4X dimensions There is a risk of damaging the controllers during transport During transport or while on tour it is essential that the controllers are rear su...

Страница 14: ...to an AC power outlet rated 100 240 V 50 60 Hz with the following current values 20 A for 100 120 V 10 A for 200 240 V The LA4X must be connected to a mains socket outlet with a protective connection...

Страница 15: ...l level as indicated in the following table Table 2 LA4X mains input power and current draw Maximum output power Mains input power and current draw Load Number of driven channels Power per channel 1 3...

Страница 16: ...by the user for channel pairs AB and CD the two selections can be different The devices to connect to the IN connectors are given in the following table see also section 4 9 1 for input mode selection...

Страница 17: ...level from virtually any line level signal source up to 22 dBu In a daisy chain layout the four male XLR3 link connectors LINK A to LINK D feed the input signals to the next amplified controller in th...

Страница 18: ...lanced microphone cable of maximum length of 50 m 150 ft can be used to transport a signal of maximum sampling frequency of 48 kHz Higher sampling frequencies may require reducing the cable length sin...

Страница 19: ...AKER panel see Figure 7 are for loudspeaker connection They are wired as follows see also Figure 10 Top left SpeakON connector Top right SpeakON connector Pin 1 Out 1 Pin 1 Out 3 Pin 1 Out 1 Pin 1 Out...

Страница 20: ...8 KARA 2 4 KUDO 1 1 K2 1 1 Subwoofers SB15m 1 4 SB18 1 4 For passive loudspeakers the value corresponds to the number of enclosures in parallel on the output For active loudspeakers the value correspo...

Страница 21: ...see Figure 12 Although it cannot be detected anymore over the network the controller still transmits Ethernet data in a daisy chain topology Figure 12 LA4X turned off Power loss If the power has been...

Страница 22: ...aced above each output key written in the xx_x format where The first two characters indicate the type of transducer section or enclosure to be connected to the output channel LF low frequency transdu...

Страница 23: ...oller and when the output voltage reaches 0 1 V LOAD The LOAD LED is lit in green when a load is connected and when the output module delivers a minimum of 0 8 A 4 2 3 STATUS and L NET LED The STATUS...

Страница 24: ...Display Locked is displayed on the LCD screen see Figure 17 To unlock press and hold the ESC and OK keys simultaneously until Display Unlocked is displayed on the LCD screen Figure 17 Locking the fro...

Страница 25: ...1 dB resolution simultaneously press and turn the encoder wheel Examples of output channels routed to the same input see Figure 20 Pressing OUT1 will select OUT1 OUT3 and OUT4 containing A Pressing OU...

Страница 26: ...IP LED is lit when the input voltage reaches 22 dBu analog audio source or 0 1 dBfs digital audio source Reminder 38 dBu 10 mV and 22 dBu 9 8 V LED LOAD is lit if the corresponding input channel is pa...

Страница 27: ...ximum values display the firmware and factory preset library versions display the controller s MAC address 4 10 OPTIONS set the controller s IP address set the delay unit LCD screen contrast and light...

Страница 28: ...e LCD screen displays ACCESS LOCKED or ENTER PIN see Figure 24 Figure 24 Lock and pin code protection messages In the first case the functionality cannot be accessed Press the ESC key to abort In the...

Страница 29: ...aded END If the controller displays CLEAR GROUP PARAM OUTPUTS MUTED it means that it has been assigned to groups see section 4 3 1 group information and that it is no longer connected to L NET see sec...

Страница 30: ...n 4 7 are not automatically saved to the current preset they will be lost if the preset is reloaded prior to storing it e g while the star sign is displayed However the current state is saved when the...

Страница 31: ...se continue the procedure Turn the encoder wheel to scroll through the user presets 2 Press the OK key or the encoder wheel to select a preset or ESC to abort 3 The controller displays ARE YOU SURE Pr...

Страница 32: ...HF LF HF for 2 way active loudspeakers and on the right a preset composed of one 4 channel set SR SB SB SB for 4 subwoofers in cardioid configuration Figure 29 Channel sets To set the preset parameter...

Страница 33: ...om 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 sin...

Страница 34: ...U input mode is active and that the digital audio source provides signals of sampling frequency of 44 1 kHz The LOCK status is obtained under the following conditions a digital audio source is connect...

Страница 35: ...ital audio source connected to input pair AB When an analog audio source is connected to input pair CD the level of the digital audio source connected to input pair AB must be aligned to the level of...

Страница 36: ...input signal of 22 dBu The three following examples illustrate the most common cases If the analog audio source is calibrated at 18 dBu for 0 dBfs set the AES EBU GAIN to 4 dB If the analog audio sour...

Страница 37: ...voltage and output temperature for each output channel The output voltage is given in percentage of the maximum value supported by the particular transducer section connected The temperature is given...

Страница 38: ...ectively 52 53 50 and 48 4 10 3 FIRMWARE This page displays the version of LA4X firmware in use in the controller For example Figure 38 shows LA4X firmware version 1 0 3 3 Network Always ensure that a...

Страница 39: ...ers are the following IP address delay unit ms meters feet or samples LCD screen contrast LED and LCD screen backlight mode An additional function allows resetting the amplified controller to its fact...

Страница 40: ...main menu select OPTIONS and press the OK key or the encoder wheel or ESC to abort 1 Press the OK key or the encoder wheel to enter the NETWORK ADDRESS page or ESC to abort 2 Turn the encoder wheel to...

Страница 41: ...der wheel to validate the setting or ESC to abort 5 For example in Figure 39 the backlight mode has been modified from NORMAL to MEDIUM 4 11 5 RESET TO FACTORY DEFAULT SETTINGS To reset the amplified...

Страница 42: ...when the temperature returns to nominal state If one of the two fans is ineffective the controller displays Fan blocked see the figure on the right The controller remains operational but there is a r...

Страница 43: ...lar electronic apparatus EN55103 1 Electromagnetic compatibility Product family standard for audio video audio visual and entertainment lighting control apparatus for professional use Part 1 Emissions...

Страница 44: ...ad Nb of driven channels Power per channel 1 3 Output Power 5 dB 1 8 Output Power 9 dB IDLE Standby 4 or 8 4 1000 W 7 A 1600 W 3 A 750 W 0 26A 60 W 0 1 A 11 W Current values given for a mains rated at...

Страница 45: ...mic range DIGITAL INPUT DATA Supported input formats Standard AES EBU AES3 or coaxial S PDIF IEC 60958 Type II Sampling frequency Fs 44 1 48 64 88 2 96 128 176 4 or 192 kHz Word length 16 18 20 or 24...

Страница 46: ...erence LA4X_UM_EN_4 0 Distribution date October 28 2014 2014 L ACOUSTICS All rights reserved No part of this publication may be reproduced or transmitted in any form or by any means without the expres...

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