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Table of Contents
Related Manuals for L-Acoustics LA2Xi
Summary of Contents for L-Acoustics LA2Xi
- Page 1 LA2Xi owner's manual (EN)
- Page 2 Document reference: LA2Xi owner's 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.
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Page 3: Table Of Contents
Contents Safety................................5 Important safety instructions........................5 Introduction................................ 7 LA2Xi amplied 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 amplication......................9 Signal inputs...........................9 DSP architecture..........................10... - Page 4 Heat power calculation........................19 24 V DC Input..........................19 Audio and network cabling........................20 Connection panels.........................20 Analog audio..........................22 Digital audio..........................23 L-NET............................23 AVB............................. 24 Speaker............................24 Connector references..........................24 Operation................................ 25 Powering on/off............................. 25 Interpreting the front panel LEDs.......................25 L-NET............................25 STATUS............................
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Page 5: Safety
This system is intended for use by trained personnel for professional applications. As part of a continuous evolution of techniques and standards, L-Acoustics reserves the right to change the specications of its products and the content of its documents without prior notice. - Page 6 Contact L-Acoustics for advanced maintenance. Any unauthorized maintenance operation will void the product warranty. Before sending a product to L-Acoustics for maintenance, save all user presets to les using LA Network Manager. Shipping Use the original packaging for shipping the product, unless it is mounted in a rack with the front and rear panels xed to the rack, as described in this manual.
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Page 7: Introduction
AES, LA2Xi integrates AVB signal inputs with Milan seamless network redundancy. Four GPIO and a 24 V DC backup power for the DSP card offer external control and improved reliability. The exible LA2Xi is ideal for background music systems in leisure venues, distributed lls, studio monitors and private auditorium systems. -
Page 8: System Components
Amplied controller with DSP, preset library and networking capabilities Software applications LA Network Manager Software for remote control and monitoring of amplied controllers Refer to the Soundvision help. Refer to the LA Network Manager help. Illustrations LA Network Manager LA2Xi owner's manual (EN) version 1.0... -
Page 9: Technical Description
Internal components The core of the LA2Xi is a Gen. 4 dual DSP engine driving four channels of amplication from four inputs. LA2Xi features a ash memory for preset storage and management, high performance A/D-D/A converters for audio signals, a universal Switched Mode Power Supply (SMPS) with PFC (Power Factor Correction), and a dual-port Ethernet Gigabit interface. -
Page 10: Dsp Architecture
• Digital signal refreshed at each amplied 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): •... - Page 11 Technical description audio path parameters LA2Xi owner's manual (EN) version 1.0...
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Page 12: Power Supply And AmpliEr Section
• 4 × 190 W at 16 Ω LA2Xi is a green amplied controller that relies on a universal Switched Mode Power Supply (SMPS) suitable for mains 100 V AC - 240 V AC (± 10%, 50 Hz - 60 Hz ). The SMPS features a PFC (Power Factor Correction) which maximizes the amplier efciency and takes advantage of nearly 100% of the electrical power available with a very high tolerance... -
Page 13: Speaker Protection
Manager and the amplied controllers are connected to each other using industry standard CAT5e U/FTP cables (or higher category) tted with RJ45 connectors. The LA2Xi connects to the network via the two Ethernet etherCON I/O sockets located on its rear panel. Refer to the LA Network Manager Help for detailed operating instructions. -
Page 14: Inspection And Preventive Maintenance
External structure 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 connectors are not damaged LA2Xi owner's manual (EN) version 1.0... -
Page 15: Cleanness
3. Check that the amplied 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. -
Page 16: Installation
Mounting The LA2Xi is one rack units high (1U) and can be mounted in an EIA-standard 19” rack using the four points on the front panel. Use the xing material provided by the rack manufacturer to mount the amplied controller to the rack front rails. -
Page 17: General Purpose I/O (Gpio)
Verify that the three phases work, and balance the loads between the three phases. Verify that the neutral and earth work. Never try to emulate a 230 V circuit connecting an apparatus to two live wires of a 120 V three-phase circuit. LA2Xi owner's manual (EN) version 1.0... -
Page 18: Planning The Power Of The Electrical Generator
Electrical generator You must power on the generator before powering on the product. LA2Xi draws up to 10 A from 230 V. A typical generator has a power factor of 0.8 and should operate at 70% load for good efciency. -
Page 19: Power Consumption
Heat power calculation If a 4 Ω load is connected to each output channel of the LA2Xi in SE mode, each channel delivers up to 640 W. With a standard use at one eighth (1/8) of full power (9 dB headroom), the power delivered per channel is:... -
Page 20: Audio And Network Cabling
3. For connection to an AVB network, and to be remotely controlled by LA Network Manager. LA2Xi audio and network connection panels Speaker connectors Use the two female 4-point terminal blocks for loudspeaker connection. The connectors are wired as follows:... - Page 21 Ethernet connectors Use the two etherCON connectors for the remote control of LA2Xi over the L-NET network using LA Network Manager. The etherCON connectors are AVB-capable. Each of the two etherCON connectors can be equally used as an IN or a LINK connector.
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Page 22: Analog Audio
In an analog daisy-chain, LA4 and LA8 with power off or in standby cause sound distortion at high input levels to the other amplied controllers they are connected to. Make sure all LA4 and LA8 are powered on and in operating (not in standby) mode, or disconnect them from the daisy-chain. LA2Xi owner's manual (EN) version 1.0... -
Page 23: Digital Audio
L-NET Do not create loops in the network setup. Always place LA2Xi, LA4X, and LA12X amplied controllers before LA4/LA8 amplied controllers in daisy-chain networks. LA4 and LA8 amplied controllers are equipped with former generation 100 Mb/s Ethernet ports that cannot communicate with Ethernet ports of different capabilities, creating detection issues in LA Network Manager. -
Page 24: Avb
Use the etherCON connectors on the rear panel to connect LA2Xi to L-NET in a daisy-chain, star, or hybrid topology. Refer to the LA Network Manager Help for network setup. Use the two etherCON connectors on the rear panel to connect LA2Xi to an AVB network, or to use LA2Xi to create an AVB network. -
Page 25: Operation
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. -
Page 26: Meters
20 dB below the maximum level the output voltage reaches 60 dB below the maximum level green progress during rmware update from 1 to 4 the output voltage is more than 60 dB below the maximum level LA2Xi owner's manual (EN) version 1.0... -
Page 27: Other Operations
6. Click Refresh to retrieve the LA2Xi information. 7. Enter the same Netmask as that of the network card that will be used to connect to the LA2Xi. 8. Assign a unique IP address to each LA2Xi on the corresponding subnet. -
Page 28: SpeciCations
< -67 dBV (20 Hz - 20 kHz, 8 Ω, A-weighted, analog input) Channel separation > 80 dB (at 1 kHz, 8 Ω, 60 W) Damping factor > 80 (20 Hz - 200 Hz, 4 Ω load) Output delay 0 ms to 1000 ms LA2Xi owner's manual (EN) version 1.0... - Page 29 -5 °C / 23 °F to 50 °C / 122 °F Maximum altitude 2000 m Protection Mains and power supply over and under voltage over temperature overcurrent (fuse protection, and inrush current protection) Power outputs overcurrent short circuit over temperature LA2Xi owner's manual (EN) version 1.0...
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Page 30: Input Signal Distribution
96 kHz (SRC referenced to the amplied controller internal clock) Word length 24 bits Dynamic range 140 dB Distortion THD+N < -120 dBFS (dB Full Scale) Bandpass ripple ±0.05 dB 20 Hz - 40 kHz, 96 kHz LA2Xi owner's manual (EN) version 1.0... -
Page 31: Latency
Fs Constant level upon manual user selection of gain, independent from input Fs Revert to initial input upon manual user selection Remote control and monitoring Network connection dual-port Ethernet Gigabit interface LA2Xi owner's manual (EN) version 1.0... -
Page 32: Physical Data
483 mm / 19 in 465 mm / 18.3 in 44.45 mm / 1.75 in 32 mm / 1.25 in 265 mm / 10.43 in 435 mm / 17.13 in 248 mm / 9.76 in LA2Xi owner's manual (EN) version 1.0... -
Page 33: Appendix A - Glossary
An emergency stream has been connected and reclaimed the bandwidth that rank was used by the Unit stream. • Wait until the emergency stream is disconnected (bandwidth is automatically reallocated). • Try the resolutions of error 1. LA2Xi owner's manual (EN) version 1.0... - Page 34 One of the bridges on the path from the talker to the listener is incorrectly congured. • Congure the bridges to allow dynamic VLAN registration. • If possible, congure the talker to use a different VLAN (one that is authorized by the bridges). LA2Xi owner's manual (EN) version 1.0...
- Page 35 • Congure the bridges to enable VLAN tagging of the egress packets. SR class priority mismatch A wrongly congured AVB bridge is present in the network. • Congure all the bridges with the same setting (default is 3 for Class A streams). LA2Xi owner's manual (EN) version 1.0...
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Page 36: Appendix C - Approvals
Approvals Approvals LA2Xi owner's manual (EN) version 1.0... - Page 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...
- Page 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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