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Contents

Safety................................................................................................................................................................ 5

Important safety instructions....................................................................................................................... 5

Introduction........................................................................................................................................................ 7

LA2Xi amplied controller..........................................................................................................................7
How to use this manual............................................................................................................................ 7

System  components.............................................................................................................................................8

Technical  description........................................................................................................................................... 9

Main  features........................................................................................................................................... 9

Internal  components.........................................................................................................................9
Front and rear panels......................................................................................................................9

Signal processing and amplication........................................................................................................... 9

Signal  inputs...................................................................................................................................9
DSP  architecture............................................................................................................................10
Power supply and amplier section.................................................................................................12
Speaker  outputs............................................................................................................................ 12
Speaker  protection........................................................................................................................ 13

Monitoring and control............................................................................................................................13

User  interface............................................................................................................................... 13
L-NET remote control network......................................................................................................... 13

Inspection and preventive maintenance...............................................................................................................14

How to do preventive maintenance.......................................................................................................... 14
External  structure.....................................................................................................................................14
Cleanness...............................................................................................................................................15
Normal start-up sequence........................................................................................................................ 15
Network functionalities and rmware........................................................................................................15

Installation........................................................................................................................................................16

Mounting................................................................................................................................................16
Ventilation.............................................................................................................................................. 16
General Purpose I/O (GPIO)................................................................................................................... 17
Connecting to AC mains......................................................................................................................... 17

Electrical specications.................................................................................................................. 17
Planning the power of the electrical generator................................................................................. 18
Power  cord...................................................................................................................................18
Plugging the amplied controller.....................................................................................................18
Power  consumption........................................................................................................................19

  3

Содержание LA2Xi

Страница 1: ...LA2Xi owner s manual EN ...

Страница 2: ...manual EN version 1 0 Distribution date October 14 2020 2020 L Acoustics All rights reserved No part of this publication may be reproduced or transmitted in any form or by any means without the express written consent of the publisher ...

Страница 3: ...aker outputs 12 Speaker protection 13 Monitoring and control 13 User interface 13 L NET remote control network 13 Inspection and preventive maintenance 14 How to do preventive maintenance 14 External structure 14 Cleanness 15 Normal start up sequence 15 Network functionalities and rmware 15 Installation 16 Mounting 16 Ventilation 16 General Purpose I O GPIO 17 Connecting to AC mains 17 Electrical ...

Страница 4: ...ion 25 Powering on off 25 Interpreting the front panel LEDs 25 L NET 25 STATUS 25 Meters 26 Other operations 27 Setting the IP via USB 27 Speci cations 28 General 28 Input signal distribution 30 Latency 31 AVB 31 Automatic fallback option 31 Remote control and monitoring 31 Physical data 32 Appendix A Glossary 33 Appendix B List of AVB reservation errors 33 Appendix C Approvals 36 4 ...

Страница 5: ...he circuit breaker current rating depends on the mains voltage rating as follows 100 120 V 20 A 200 240 V 10 A Electrical generator You must power on the generator before powering on the product Terminals marked with the lightning ash symbol are HAZARDOUS LIVE The external wiring connected to these terminals requires installation by an instructed person or the use of ready made leads or cords Neve...

Страница 6: ...able on the website Only use the product in a conformed electro magnetic environment EN55035 standard Avoid radio interference This product has been tested and complies with the limits indicated in the EMC directive Electro Magnetic Compatibility These limits are designed to provide reasonable protection against harmful interference from electrical equipment but it cannot be guaranteed that interf...

Страница 7: ...esign implementation preventive and corrective maintenance of the LA2Xi product It must be used as follows 1 Read the technical description for an overview of all product elements their features and their compatibilities Technical description p 9 2 Before installing the product perform mandatory inspections and functional checks Inspection and preventive maintenance p 14 3 To deploy the product fo...

Страница 8: ...This symbol noti es the user about complementary information or optional instructions Do not open unless authorized This symbol indicates the presence of electrical shock hazards It also indicates that no maintenance performed by the end user requires access to internal components System components Loudspeaker enclosures Refer to the user documentation of the loudspeaker systems for detailed instr...

Страница 9: ...ock to connect a backup power supply for the DSP 4 General Purpose I O GPIO 5 input Link male 3 point terminal blocks 6 1 Gb s Ethernet etherCON I O connectors 7 mini USB for con guring IP settings refer to Setting the IP via USB p 27 Signal processing and ampli cation Signal inputs Analog LA2Xi can be fed with up to four balanced analog audio signals using the four male 3 point terminal blocks AN...

Страница 10: ...signal refreshed at each ampli ed controller in a daisy chain Improved maximum cable length LA2Xi has been tested with up to 300 m 984 ft of two models of AES EBU rated cables single cuts digital source signal running at Fs 48 kHz 1696A from BELDEN INC OT234H from KLOTZ communications GmbH AVB One AVB stream of up to eight channels may be connected to LA2Xi LA2Xi retrieves up to four channels from...

Страница 11: ...Technical description audio path parameters LA2Xi owner s manual EN version 1 0 11 ...

Страница 12: ...connectors improves maximum SPL but reduces the maximum number of loudspeaker enclosure per output and per ampli ed controller refer to the Preset guide or the Ampli cation reference technical bulletin for more information on enclosure drive capacity Maximum SPL Peak level measured at 1 m under free eld conditions for full range loudspeakers and half space conditions for subwoofers using pink nois...

Страница 13: ...VB bridges with a single control computer This Ethernet network called L NET uses L COM PROTOCOL a proprietary communication protocol based on TCP IPv4 The integration of the L NET Ethernet based network with its high speed data transfer protocol up to 1 Gb s allows up to 253 ampli ed controllers to be controlled and monitored in real time from LA Network Manager Multiple network topologies such a...

Страница 14: ...ring applications or at least once a month xed installations External structure p 14 Cleanness p 15 Functionalities At least once a year Normal start up sequence p 15 Network functionalities and rmware p 15 External structure The indicates a visual inspection side brackets are present and not damaged front grills are clean and not damaged see also Cleanness p 15 chassis and LEDs are not damaged co...

Страница 15: ...er to an Ethernet port of a computer running LA Network Manager Use the CAT5e U FTP cable 2 Run LA Network Manager 3 Check that the ampli ed controllers are detected as online Units Refer to the LA Network Manager Help 4 Check that all LA2Xi in the system run the same version of the rmware and that it matches with the version of LA Network Manager in use Refer to the LA NWM and Firmware Compatibil...

Страница 16: ...e LA2Xi is equipped with fans and grills providing front to rear air ow Ventilation instructions Install the controller in an open area so that the front and rear panels are located at a minimum distance of 30 cm 12 inches from any external object or structure Ensure the front grill is clean and dirt free Do not block the front and rear ventilation grills Ventilation when rack mounted Do not block...

Страница 17: ...fy the electrical conformity and compatibility of the mains supply Only connect the product to an AC power outlet rated 100 240 V 50 60 Hz with the following current values 100 120 V 20 A 200 240 V 10 A WARNING The product is of Class 1 construction and shall be connected to a mains socket outlet with a protective connection to earth Three phase circuit When the product is used in a three phase ci...

Страница 18: ...r cord The removable power cord is tted with a V Lock compatible IEC connector at one end and a country speci c plug at the other end type plug cable ratings live neutral ground CE CEE7 VII earthed 10 A 250 V CN GB 2099 earthed 10 A 250 V brown blue green yellow JP JIS 8303 earthed 12 A 125 V green yellow US NEMA 5 15 earthed 10 A 125 V black white green Strictly apply the speci c safety regulatio...

Страница 19: ...2 for 120 V 1 15 for 200 V Output power references A third 1 3 of the maximum output power corresponds to the worst case scenario of a program source using highly compressed music or pink noise with ampli ed controller driven to clip level An eighth 1 8 of the maximum output power corresponds to a loud music program with a small dynamic range and 9 dB of headroom IEC standard power rating Heat pow...

Страница 20: ...emotely controlled by LA Network Manager LA2Xi audio and network connection panels 1 2 3 Speaker connectors Use the two female 4 point terminal blocks for loudspeaker connection The connectors are wired as follows left 4 point terminal block both 4 point terminal blocks SE BTL PBTL Pin 1 Out 1 Out 1 Out 1 Pin 1 Out 1 N A N A Pin 2 Out 2 N A N A Pin 2 Out 2 Out 2 Out 2 right 4 point terminal block ...

Страница 21: ...20 or 24 bits Synchronization signal resampled to internal clock at 96 kHz AES IN A B and AES IN C D can receive up to four digital signals when setting the AES EBU input mode Each LINK connector is electronically buffered to allow daisy chaining any number of ampli ed controllers It also features a failsafe relay to ensure wiring continuity in case of ampli ed controller shutdown Ethernet connect...

Страница 22: ...ntrollers by wiring the inputs of the next unit in the same terminal blocks daisy chaining analog audio ANA IN A IN A IN C IN B IN D ANALOG IN B Analog daisy chain and LA4 LA8 with power off or in standby In an analog daisy chain LA4 and LA8 with power off or in standby cause sound distortion at high input levels to the other ampli ed controllers they are connected to Make sure all LA4 and LA8 are...

Страница 23: ...ed to use the same model of cable between two AES EBU interfaces In case an ampli ed controller shuts down the failsafe relay makes a passive connection between the AES EBU IN port and the LINK port to maintain continuity However the signals are no longer refreshed for the next ampli ed controller so that the input cable and the link cable must be considered as a unique input cable with regard to ...

Страница 24: ... 2 3 3 4 4 SE con guration BTL con guration PBTL con guration For PBTL con guration it is necessary to connect the PAR pin to a ground pin Refer to General Purpose I O GPIO p 17 Bridging the connectors improves maximum SPL refer to Maximum SPL p 12 but reduces the maximum number of loudspeaker enclosure per output and per ampli ed controller For the enclosure drive capacity per ampli ed controller...

Страница 25: ...work Manager Help Interpreting the front panel LEDs L NET The L NET LED on the front panel displays the L NET status green when LA2Xi is remotely controlled by LA Network Manager refer to the LA Network Manager Help orange when LA2Xi is remotely controlled by a third party software off when no software remotely controls the ampli ed controller STATUS The STATUS LED on the front panel displays the ...

Страница 26: ... the output channel continuous the L DRIVE limiter is activated with gain reduction of at least 3 dB orange blink during identi cation from LA Network Manager high the output voltage reaches 20 dB below the maximum level low the output voltage reaches 60 dB below the maximum level green progress from 1 to 4 during rmware update off the output voltage is more than 60 dB below the maximum level 26 L...

Страница 27: ...information Setting the IP via USB If the IP address of LA2Xi needs to be set on a different subnet then proceed as follows Procedure 1 Identify the IP address and the subnet mask of the network card of the computer on which LA Network Manager will be run 2 Open the application with LA Network Manager Click Utilities USB Terminal 3 Click Scan to retrieve the list of serial ports on the computer Ex...

Страница 28: ...ncy Class D Digital Signal Processor DSP Gen 4 dual SHARC 32 bit oating point 96 kHz sampling rate Frequency response 20 Hz 20 kHz 0 25 dB Distortion THD N 0 1 Output dynamic range 113 dB 20 Hz 20 kHz 8 Ω A weighted digital input 102 dB 20 Hz 20 kHz 8 Ω A weighted analog input Ampli cation gain 32 dB Noise level 78 dBV 20 Hz 20 kHz 8 Ω A weighted digital input 67 dBV 20 Hz 20 kHz 8 Ω A weighted an...

Страница 29: ...W 1 7 A 270 W 2 3 A 440 W In Idle and Standby any mode Idle 0 5 A 28 W Standby 0 4 A 12 W Current values given for mains rated at 230 V Multiply by 2 3 for 100 V 1 92 for 120 V 1 15 for 200 V Power supply Model universal Switched Mode Power Supply SMPS with power factor correction PFC Power factor 0 9 at full load Mains rating 100 V AC 240 V AC 10 50 Hz 60 Hz 550 W Nominal current requirements 20 ...

Страница 30: ...t 4 male 3 point terminal blocks 2 for Analog 2 for AES EBU or Analog Link 2 male 3 point terminal blocks for AES EBU Analog input Input impedance 22 kΩ balanced Maximum input level 22 dBu balanced THD 1 A D conversion 32 bit analog digital converter 121 dB dynamic range A weighted 20 Hz 20 kHz Digital input Supported digital input format Standards AES EBU AES3 Sampling frequency Fs 44 1 48 88 2 9...

Страница 31: ...83 6 AM824 8 channels at 48 kHz or 96 kHz Media clock automatically synchronized on clock of the connected AVB input stream upsampling at 96 kHz in case of stream at 48 kHz Streams forwarded by AVB Bridge in normal mode up to 32 Automatic fallback option Mode AVB to AES or analog AES to analog Switchover conditions AVB loss of lock AES to analog no clock loss of lock CRC error bipolar encoding err...

Страница 32: ... Extron is a registered trademark of Extron Electronics Crestron is a trademark or registered trademark of Crestron Electronics Inc in the United States other countries or both QSC and Q SYS are trademarks or registered trademarks of QSC LLC in the U S Patent and Trademark Of ce and other countries Physical data Height 1U Weight 4 4 kg 9 7 lb Finish black Protection rating IP2x LA2Xi 483 mm 19 in ...

Страница 33: ...streams to release bandwidth 2 Out of bridge resources One of the bridges on the path from the talker to the listener reached its limits Try to reboot the bridges on the path from the talker to the listener Try to disconnect some streams 3 Out of bandwidth for traf c class See error 1 4 Stream ID used by another talker A device on the network is behaving incorrectly Disconnect and reconnect the st...

Страница 34: ...e path from the talker to the listener has reached its limits Try to disconnect some streams Try to reboot the bridges on the path from the talker to the listener 12 Cannot store dest addr One of the bridges on the path from the talker to the listener has reached its limits Try to disconnect some streams Try to reboot the bridges on the path from the talker to the listener 13 Req priority is not a...

Страница 35: ...om the talker to the listener is incorrectly con gured Con gure the bridges to enable VLAN tagging of the egress packets 19 SR class priority mismatch A wrongly con gured AVB bridge is present in the network Con gure all the bridges with the same setting default is 3 for Class A streams LA2Xi owner s manual EN version 1 0 35 ...

Страница 36: ...Approvals Approvals 36 LA2Xi owner s manual EN version 1 0 ...

Страница 37: ...Approvals LA2Xi is compliant with the following Avnu Alliance and the Avnu design mark are registered trademarks and or service marks of Avnu Alliance LA2Xi owner s manual EN version 1 0 37 ...

Страница 38: ...L Acoustics 13 rue Levacher Cintrat 91460 Marcoussis France 33 1 69 63 69 63 info l acoustics com www l acoustics com ...

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