La8 l acoustics мануал

L-Acoustics LA 8 User Manual

  1. Manuals
  2. Brands
  3. L-Acoustics Manuals
  4. Recording Equipment
  5. LA8
  6. User manual

  • Contents

  • Table of Contents

  • Bookmarks

Quick Links

loading

Related Manuals for L-Acoustics LA 8

Summary of Contents for L-Acoustics LA 8

  • Page 1
    user manual (EN)
  • Page 2
    Document reference: LA8 user manual (EN) version 13.1 Distribution date: September 1, 2016 © 2016 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…

  • Page 3: Table Of Contents

    Contents Safety…………………………..5 Safety instructions……………………….. 5 Symbols…………………………8 System components……………………….10 Technical description……………………….12 Main features……………………….12 Internal components……………………12 Front and rear panels……………………13 Signal processing and amplication………………….14 Signal inputs……………………..14 DSP architecture……………………..15 Power supply and amplier section………………..16 Speaker outputs……………………..16 Monitoring and control……………………..16 User interface……………………..

  • Page 4
    L-NET……………………….35 Meters……………………….36 OUT………………………..36 Main screen description…………………….. 37 Using quick access functions……………………38 Locking/Unlocking the front panel………………..38 Muting/Unmuting an output channel………………..38 Modifying gain……………………..39 Identifying an amplied controller………………..40 Displaying input level, input selection, input mode and group information……….. 40 Using the main menu……………………..

  • Page 5: Safety

    Safety instructions Read this manual Follow all SAFETY INSTRUCTIONS as well as DANGER and OBLIGATION warnings Never incorporate equipment or accessories not approved by L-Acoustics Read all the related PRODUCT INFORMATION documents before exploiting the system The product information document is included in the shipping carton of the related system component.

  • Page 6: Operating Temperature

    Safety 12. Grounding To plug the controller to mains only use an outlet tted with a pin tied to ground. Do not defeat the ground pin of the outlet as it connects the controller to earth. If the local outlet is obsolete, consult an electrician.

  • Page 7: Mounting Instructions

    The use of unauthorized replacement parts may result in injury and/or damage through re, electric shock, or other electricity-related hazards. All service and repair work must be carried out by an L-Acoustics authorized dealer. 26. 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.

  • Page 8: Symbols

    Safety Symbols The following symbols are used in this document: This symbol indicates a potential risk of harm to an individual or damage to the product. It can also notify the user about instructions that must be strictly followed to ensure safe installation or operation of the product.

  • Page 9
    DSP, network control, and comprehensive system protection in a single ergonomic package. Based on similar platforms, the exceptional and ground-breaking performance level delivered by the LA8 units allow full optimization of the resources of all L-Acoustics systems and deliver outstanding audio quality combined with the best possible transducer protection.

  • Page 10: System Components

    System components A complete L-Acoustics system includes loudspeaker enclosures, amplied controllers, cables, rigging system, and software applications. The main components of an L-Acoustics system that includes the LA8 are the following: Loudspeaker enclosures Refer to the user manuals of the loudspeaker systems for detailed instructions about the enclosures and their connection to the amplied controllers.

  • Page 11
    System components Illustrations LA-RAK LA Network Manager L-Case LA8 user manual (EN) version 13.1…

  • Page 12: Technical Description

    Technical description Technical description Main features Internal components The core of the LA8 is a DSP engine driving four channels of amplication from two inputs. The LA8 also features a ash memory for preset storage and management, high performance A/D-D/A converters and AES/EBU inputs for audio signals, an auto-sensing SMPS (Switched Mode Power Supply), a front panel user interface, and a fast Ethernet device for networked remote control.

  • Page 13: Front And Rear Panels

    Technical description Front and rear panels 011:K1 011:K1 LF_A LF_A MF_A HF_A LF_A LF_A MF_A HF_A 1 LED meters: A/C power cord — CLIP level 10 outward ventilation grills 11 speakON output connectors — audio levels (-5 dB, -10 dB and -25 dB) —…

  • Page 14: Signal Processing And AmpliCation

    Technical description Signal processing and amplication Signal inputs Analog inputs The LA8 can be fed with two balanced analog audio signals using the appropriate XLR input ports — see illustration in section Front and rear panels (p.13). Each analog input port is ESD protected and equipped with one XLR female connector.

  • Page 15: Dsp Architecture

    — With a complete factory preset library and the possibility to create additional user presets, the ash memory provides a quick access to all the usual L-Acoustics speaker system congurations (refer to the Preset Guide) Audio path parameters…

  • Page 16: Power Supply And AmpliEr Section

    The 4 channels can deliver up to 4 x 1800 watt into 4 or 2.7 ohm yielding perfect power matching to each individual L-Acoustics loudspeaker system. The auto-sensing SMPS (Switched Mode Power Supply) offers better stability by associating two symmetrical power supplies.

  • Page 17: Installation

    Installation Installation Mounting The LA8 is two rack units high (2U) 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 controller to the rack front rails. LA8 dimensions 483 mm / 19 in 406 mm / 16 in…

  • Page 18
    Installation LA-RAK touring rack The L-Acoustics LA-RAK is available for three LA8 with all power and signal connection facilities. Refer to the LA-RAK user manual. LA8 user manual (EN) version 13.1…

  • Page 19: Ventilation

    Installation Ventilation To maintain moderate operating temperatures, the LA8 is equipped with fans providing front to rear airow. Ventilation instructions Ensure the front foam lter is clean and dirt free. Do not block the front and rear ventilation grills. Ventilation when rack-mounted Do not block the ventilation grills with front or back panels or doors.

  • Page 20: Planning The Power Of The Electrical Generator

    Installation Planning the power of the electrical generator Electrical generator You must power on the generator before powering on the product. Verify that the product is turned off before powering on the generator. LA8 draws 16 A from 230 V. A typical generator has a power factor of 0.8 and should operate at 70% load for good efciency.

  • Page 21: Heat Power Calculation

    Installation Heat power calculation If a 4 Ω load is connected to each output channel of the LA8, each channel delivers up to 1800 W. With a standard use at 1/8 of full power (9 dB headroom), the power delivered per channel is: 1800 / 8 = 225 W, so a total power of 4 x 225 = 900 W.

  • Page 22
    Installation Output audio paths OUT 2 OUT 1 OUT 3 OUT 4 1+ 1- 2+ 2- 1+ 1- 2+ 2- LA8 user manual (EN) version 13.1…
  • Page 23
    Installation Signal panels The six XLR connectors on the rear panel are for analog or digital signal cabling. Two IN and two LINK connectors are for analog signals, and one IN and one LINK connectors are for AES/EBU signals. LA8 signal panel LINK A IN A LINK B…
  • Page 24
    Installation AES/EBU input mode Digital audio source specications Standard: AES/EBU (AES3) or electrical S/PDIF (IEC 60958 Type II) Sampling frequency: 44.1, 48, 64, 88.2, 96, 128, 176.4 or 192 kHz Word length: 16, 18, 20 or 24 bits The AES/EBU inputs are transformer balanced and their XLR connectors are wired according to IEC 60268-12. Digital input panel wiring LINK AES/EBU Rx…

  • Page 25: Analog Audio

    Installation Analog audio Balanced cables Symmetrical (balanced) shielded cables are highly recommended as balanced signals are less sensitive to AC hum and radio interference. Unbalanced lines may add noise especially over long cable runs. In a daisy-chain layout, the male XLR link connectors LINK A and LINK B feed the input signals to the next amplied controller in the signal chain.

  • Page 26: Digital Audio

    Installation Digital audio Cables for AES/EBU digital audio AES3 species that the nominal characteristic impedance of cables used for AES/EBU digital audio transmission shall be 110 Ω ± 20%, and closer tolerances allow for increased transmission reliability over long lengths or higher sampling rates.

  • Page 27: L-Net

    There is a risk of damaging the speakers The DO2W, DOFILL and DOSUB PA-COM cables are not compatible with the LA8. All other L-Acoustics PA-COM cables can be used. Refer to the LA8 PACOM CABLES technical bulletin for more details.

  • Page 28
    Installation 2-way active enclosure on CA-COM output — DO + DOFILL-LA8 SP1 (OUT1/OUT2) CA-COM SP2 (OUT3/OUT4) Connecting a 2-way active enclosure with subwoofers 2-way active enclosure and subwoofers on CA-COM output — DO + DO3WFILL SUB1 (OUT1) CA-COM SUB2 (OUT2) 2WAY (OUT3/4) SUB1 (OUT1) CA-COM…
  • Page 29
    Installation Connecting 2-way passive enclosures 2-way passive enclosure on speakON output — SP + SP-Y1 CH1 (OUT1) SP-Y1 CC4FP CH2 (OUT2) OUT3/OUT4 OUT1/OUT2 same as OUT1/OUT2 2-way passive enclosure on CA-COM output — DO + DOSUB-LA8 SP1 (OUT1) CA-COM SP2 (OUT2) SP3 (OUT3) SP4 (OUT4) Connecting 3-way active enclosures…
  • Page 30
    Installation Subwoofer on speakON output — SP + SP-Y1 CH1 (OUT1) SP-Y1 CC4FP OUT3/OUT4 OUT1/OUT2 CH2 (OUT2) same as OUT1/OUT2 CH1 (OUT1) SP-Y1 CC4FP OUT1/OUT2 OUT3/OUT4 CH2 (OUT2) same as OUT1/OUT2 LA8 user manual (EN) version 13.1…
  • Page 31
    Installation Subwoofer on CA-COM output — DO + DOSUB-LA8 SP1 (OUT1) CA-COM SP2 (OUT2) SP3 (OUT3) SP4 (OUT4) SP1 (OUT1) CA-COM SP2 (OUT2) SP3 (OUT3) SP4 (OUT4) LA8 user manual (EN) version 13.1…
  • Page 32
    Installation Enclosure drive capacity per LA8 Maximum number of coaxial enclosures per LA8 Loudspeaker enclosure Maximum number of Maximum number of connections per output* enclosures per controller X15 HiQ Active 12XT Passive 12XT 112XT 115XT 115XT HiQ MTD108a MTD112b Active MTD115b Passive MTD115b Maximum number of constant curvature WST enclosures per LA8 Loudspeaker enclosure…
  • Page 33
    Installation Maximum number of subwoofer enclosures per LA8 Loudspeaker enclosure Maximum number of Maximum number of connections per output* enclosures per controller SB15m SB18 SB28 SB118 SB218 dV-SUB For passive loudspeakers, the value corresponds to the number of enclosures in parallel on the output. For active loudspeakers, the value corresponds to the number of sections in parallel on the output.

  • Page 34: Operation

    Operation Operation Powering on Press the power switch up. The amplied controller goes through a 9 seconds start-up sequence displaying Initializing Controller. All LEDs lit for test. CLIP -5dB L-NET -10dB -25dB SIGNAL LOAD Initializing MENU Controller IN B IN A OUT 1 OUT 2 OUT 3…

  • Page 35: Setting To Standby Mode

    Operation Setting to standby mode To reduce the electrical consumption, the amplied controller can be put in standby mode. Use LA Network Manager to set the amplied controller to standby or back to operating mode. Refer to the LA Network Manager video tutorial. An amplied controller in standby mode displays Standby mode.

  • Page 36: Meters

    Operation Meters The four LED meters (six LEDs each) display the state of the corresponding output channel. CLIP -5dB L-NET -10dB -25dB SIGNAL LOAD CLIP red: the output voltage reaches the maximum level (signal clip) -5dB -10dB green: the output voltage reaches 5, 10 or 25 dB below the maximum level -25dB SIGNAL green: a signal is detected and the output voltage reaches 0.1 V…

  • Page 37: Main Screen Description

    Operation Main screen description The amplied controller displays the main screen at the end of the startup sequence. 001:X15HiQ_MO 110* PA_A PA_A PA_B PA_B 1. low latency symbol: indicates loaded preset is a low latency preset (refer to the LA Network Manager video tutorial) 2.

  • Page 38: Using Quick Access Functions

    Operation Using quick access functions Quick access functions are available directly from the main screen. Quick access functions include: — Locking/Unlocking the front panel (p.38) — Muting/Unmuting an output channel (p.38) — Modifying gain (p.39) — Identifying an amplied controller (p.40) —…

  • Page 39: Modifying Gain

    Operation Modifying gain About this task Gain can be modied for sets of output channels having input channels in common in their input selections. Examples of output channels having input channels in common: ‽INPUT SELECTION ‼※ — The OUT1 key displays gain for OUT1, OUT3 and OUT4 (containing IN A) —…

  • Page 40: Identifying An AmpliEd Controller

    Operation Identifying an amplied controller If the amplied controller is connected to the L-NET network, it can be identied among other amplied controllers on the Workspace of LA Network Manager (refer to the LA Network Manager video tutorial). To identify an amplied controller, press and hold the encoder wheel. On the Workspace of LA Network Manager, the amplied controller blinks in yellow.

  • Page 41
    Operation — The IN A/IN B pair receives an AES/EBU signal of 44.1 kHz (3) — Channels OUT1 and OUT2 are assigned to the same set of groups, OUT3 is not assigned to any group, and OUT4 is assigned to group All (4) LA8 user manual (EN) version 13.1…

  • Page 42: Using The Main Menu

    Operation Using the main menu The main menu gives access to functions and submenus. ‾LOAD PST USER ‼※ LOAD PST FACTORY ‽STORE PRESET ‼※ DELETE PRESET ‽PRESET PARAMETERS ‼※ CLEAR GRP PARAMS ‽INPUT SETTINGS ‼※ MONITORING & INFO ‼※ ‿OPTIONS Vertical arrows on the left indicate the current position in the menu: indicates the page is the rst in the menu.

  • Page 43: Load Pst

    1 to 10 (read and write) User presets stored by user — refer to STORE PRESET (p.45) LOAD PST FACTORY 11 to 199 (read only) Factory preset library created by L-Acoustics and automatically installed during rmware update (refer to the LA Network Manager video tutorial) LA8 user manual (EN) version 13.1…

  • Page 44
    Operation Example with a factory preset ‽LOAD PST FACTORY ‼※ STORE PRESET LOAD PRESET K1 068:SB18_60 011:K1 SB_A SB_A SB_B SB_B GROUP CONFLICT! LOAD PRESET SB18 CLEAR GROUP PARAM? 068:SB18_60 068:SB18_60 SB_A SB_A SB_B SB_B group parameters cleared LOAD PRESET CLEAR GROUP PARAM? ARE YOU SURE? OUTPUTS MUTED!

  • Page 45: Store Preset

    Operation Possible group conicts: The output channels are assigned to groups and the assignation structure is not compatible with the channel sets of the preset to be loaded. Group parameters include enabled FIR lters (Zoom Factor, FIR1, FIR2, FIR3 or Air Absorption Compensation) and the preset to be loaded is a low latency preset.

  • Page 46: Delete Preset

    Operation DELETE PRESET A user preset stored in a user memory (in memory range 1 to 10) can be deleted. ‽DELETE PRESET ‼※ PRESET PARAMETERS DELETE USER PRESET DELETE USER PRESET 011:K1 002:MY K1 ARE YOU SURE? LF_A LF_A MF_A HF_A Procedure 1.

  • Page 47
    Operation The parameters of the currently loaded preset can be set individually for each output channel or channel set. Channel set In certain presets, some channels are interdependent and form a channel set. Within a channel set the preset parameters are common to all channels. On the amplied controller’s screen, channel sets are indicated by brackets above the corresponding output channel keys.

  • Page 48: Clear Grp Params

    LA Network Manager (in standalone mode), and when the amplied controller is shut down or restarted. Group parameters are not preset-dependent and remain active when a different preset is loaded. Therefore, L-Acoustics recommends to clear group parameters when an amplied controller is used in standalone mode after being used within a network.

  • Page 49: Input Settings

    Operation INPUT SETTINGS The INPUT SETTINGS menu gives access to settings of the input mode, the fallback mode and the AES/EBU gain. ‽INPUT SETTINGS ‼※ ‾INPUT MODE ‼※ MONITORING & INFO ANALOG ‽FALLBACK MODE ‼※ ‿AES/EBU GAIN ‼※ +0.0dB INPUT MODE The XLR connectors of the signal panel can receive analog or digital signals.

  • Page 50
    Operation AES/EBU signal statuses When AES/EBU is enabled, the status of the signals is displayed: LOCK and the indicates a digital audio source is connected to the AES/EBU input, the signal delivered by the sampling frequency source has a format supported by the controller’s digital audio board, and no loss or fault is being detected during data transfer.
  • Page 51
    Operation FALLBACK MODE Sound cuts in case of digital signal failure on the AES/EBU input can be avoided with the fallback option. When automatic fallback is enabled (ON), the amplied controller automatically switches the analog input in case of digital signal failure . Switchover conditions No clock, loss of lock, CRC error, bipolar encoding error or data slip triggers the automatic fallback.
  • Page 52
    Operation AES/EBU GAIN AES/EBU GAIN must be used when the fallback mode is enabled to align the digital audio source level to the analog level for a seamless fallback switch — refer to section FALLBACK MODE (p.51). AES/EBU gain can be set from -12 dB to +12 dB by steps of 0.1 dB.

  • Page 53: Monitoring & Info

    Operation MONITORING & INFO The MONITORING & INFO menu provides real-time measurements and information on the amplied controller: — For each output channel: — real-time RMS output voltage (in percentage of the maximum value supported by the connected transducer section) —…

  • Page 54: Options

    Operation Network Always ensure that all LA8 amplied controllers used in a given network run the same rmware version. PRESET LIBRARY PRESET LIBRARY displays the version number of the amplied controller onboard preset library. Press the encoder wheel to display the third digit. ‽PRESET LIBRARY ‼…

  • Page 55
    Turn the encoder wheel to select a value. c) Press the OK key to validate. d) In LA Network Manager: 1. Click the L-Acoustics logo and select Options. 2. Enter the corresponding values in IP Range to scan for L-NET. LA8 user manual (EN) version 13.1…
  • Page 56
    Operation DELAY UNIT Delay values can be displayed in ms (milliseconds), meters, feet or samples. The values in meters and feet are given for a temperature of 20° C / 68° F. ‽DELAY UNIT ‼※ DELAY UNIT ‽DELAY UNIT ‼※ >ms<…
  • Page 57
    Operation RESET TO FACTORY DEFAULT SETTINGS? The amplied controller settings can be reset to the factory default. ‿RESET TO FACTORY ‼※ RESET AMP TO FACTORY Initializing DEFAULT SETTINGS? ARE YOU SURE? Controller 011:K1 LF_A LF_A MF_A HF_A Procedure Amplied controllers default settings include loading the preset from memory 011. The amplied controller retains its IP address.

  • Page 58: Settings Protection

    Operation Settings protection Some settings can be protected from modications. Settings protection can only be enabled and disabled from LA Network Manager. Refer to the LA Network Manager video tutorial and the SETTINGS PROTECTION technical bulletin. When settings protection is enabled, some settings are completely locked, and the protection on the others can be temporarily bypassed by a 4-digit PIN code.

  • Page 59
    Operation Procedure 1. Press and hold the OUT1 key. 2. Turn the encoder wheel to select the rst digit of the PIN code. 3. Release the OUT2 key. 4. Repeat step 1 to 3 with the OUT2, OUT3 and OUT4 key. 5.

  • Page 60: Maintenance

    The channel is muted. The channel is automatically unmuted when the issue is solved. If the error persists after disconnecting all cables and rebooting, the controller must be sent to an L-Acoustics representative for maintenance. Output channel internal error messages The output channels are continuously monitored for internal errors.

  • Page 61: Other Messages

    L-NET cable is in working order and is correctly plugged on both ends and relaunch the update process. If the issue persists, contact L-Acoustics. Displayed if temperature at an output channel is above 85° C. The signal delivered…

  • Page 62: Glossary

    Maintenance Glossary Europe check procedure China disassembly/reassembly procedure INSP inspection procedure Japan repair kit CE version of the LA8 amplied controller (when used along with «LA8CN», «LA8JP» or «LA8US») LA8CN CN version of the LA8 amplied controller LA8JP JP version of the LA8 amplied controller LA8US US version of the LA8 amplied controller newton meter, international torque unit, 1 N.m = 9 in lbf…

  • Page 63: SpeciCations

    Specications Specications All values given in this section are typical values. General ouput power EIA 4 x 1100 W RMS, 4 x 1300 W peak (at 8 Ω) (1% THD, 1 kHz, all channels driven) 4 x 1800 W RMS, 4 x 1800 W peak (at 4 or 2.7 Ω) maximum output voltage 150 V (Peak voltage, no load) amplication class…

  • Page 64: Input Signal Distribution

    Specications protection circuits protection heat sinks and transformers temperature monitoring inrush-current limitation main supply failure and over-voltage detection output DC protection output over-current protection transducers protection L-DRIVE excursion temperature over-voltage fans 2 fans, temperature-controlled speed fans noise (free eld, 1 m) at minimum speed: 24 dBA at maximum speed: 42 dBA interface and connections…

  • Page 65: Digital Input

    Specications Digital Input supported operating mode standard AES/EBU (AES3) or electrical 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 bits Sample Rate Converter (SRC) sampling frequency 96 kHz (SRC referenced to the amplied controller internal clock)

  • Page 66: Physical Data

    Specications Physical data height weight 12.2 kg / 26.9 lb nish black and anthracite gray 483 mm / 19 in 406 mm / 16 in 465 mm / 18.3 in 420 mm / 16.5 in 433 mm / 17 in 7.6 mm / 0.3 in LA8 user manual (EN) version 13.1…

  • Page 67: Approvals

    Approvals Approvals LA8 user manual (EN) version 13.1…

Источник

File Specifications:

1917/1917450-la8.pdf file (05 Mar 2023)

Accompanying Data:

L-Acoustics LA8 Amplifier, Controller PDF Operation & User’s Manual (Updated: Sunday 5th of March 2023 07:58:48 PM)

Rating: 4.8 (rated by 14 users)

Compatible devices: LA-RAK II, LA 24, V-DOSC, Kara IIi, K2, LA-RAK, LA4X, LA4.

Recommended Documentation:

Operation & User’s Manual (Text Version):

(Ocr-Read Summary of Contents of some pages of the L-Acoustics LA8 Document (Main Content), UPD: 05 March 2023)

  • 38, L-Acoustics LA8 LA8 AMPLIFIED CONTROLLER User Manual VERSION 1.1 LA8_UM_EN_1.1 www.l-acoustics.com 36 en 7.6 Amplified controller protection systems Most of the protection systems that insure the integrity of the unit’s electronic vital parts are managed by the Operating System (OS). This allows for real-time monitoring and optimal performance with a high level of sa…

  • 48, LA8_UM_ML_1.1 www.l-acoustics.com 1 fr F R 1 DÉCLARATIONS DE SÉCURITÉ Les informations détaillées ci-dessous s’appliquent au Contrôleur Amplifié L-ACOUSTICS …

  • 58, LA8_UM_ML_1.1 www.l-acoustics.com 11 fr F R 5 CONTRÔLEUR AMPLIFIÉ LA8 5.1 Panneaux avant et arrière Figure 3 : Panneaux avant et arrière du contrôleur amplifié LA8 1. …

  • 60, LA8_UM_ML_1.1 www.l-acoustics.com 13 fr F R Figure 5 : Architecture du DSP 5.2.3 Convertisseurs A/D Le LA8 utilise deux convertisseurs A/D…

  • 1, LA8 AMPLIFIED CONTROLLER LA8 CONTROLEUR AMPLIFIE VERSION 1 www.l-acoustics.com EN F R USER MANUAL MANUEL UTILISATEU R
    …

  • 32, L-Acoustics LA8 LA8 AMPLIFIED CONTROLLER User Manual VERSION 1.1 LA8_UM_EN_1.1 www.l-acoustics.com 30 en 7.3.7 OPTIONS The OPTIONS menu allows for setting the LA8 IP address, input signal source (analog or digital), delay unit, and contrast of the LCD screen. It also gives real-time display of each amp channel te…

  • 63, LA8 CONTROLEUR AMPLIFIE Manuel Utilisateur VERSION 1.1 LA8_UM_ML_1.1 www.l-acoustics.com 16 fr 6.2 Ventilation Le contrôleur amplifié est muni d’un ventilateur interne pour maintenir une température adaptée à son fonctionnement. Tous les contrôleurs amplifiés L-ACOUSTICS sont ventilés du panneau avant v…

  • 65, LA8 CONTROLEUR AMPLIFIE Manuel Utilisateur VERSION 1.1 LA8_UM_ML_1.1 www.l-acoustics.com 18 fr Figure 9 : Câblage des connecteurs d’entrée XLR L’impédance d’entrée est suffisamment grande (22 kΩ, symétrique) pour autoriser la connexion de plusieurs contrôleurs en série ou en …

  • 44, LA8 AMPLIFIED CONTROLLER User Manual VERSION 1.1 LA8_UM_EN_1.1 www.l-acoustics.com 42 en 9 SPECIFICATIONS Output power EIA (1% THD, 1 kHz, all channels driven) 4 x 1100 W @ 8 Ω (4 x 1300 W peak) / 4 x 1800 W @ 4 Ω (4 x 2500 W peak) Max output voltage 150 V (Peak voltage, no load) Circuitry Class D Digital Signal Processor T…

  • 36, LA8 AMPLIFIED CONTROLLER User Manual VERSION 1.1 LA8_UM_EN_1.1 www.l-acoustics.com 34 en 7.5 LED display 7.5.1 Bargraph display The four bargraph displays are located on the front panel above the LCD screen (see Figure 23). By default they monitor the state of each of the 4 amplifier output channel via 6 different LED…

  • 80, LA8_UM_ML_1.1 www.l-acoustics.com 33 fr F R 7.4 Messages d’écran 7.4.1 Séquence de démarrage L’allumage du contrôleur amplifié s’accompagne d’une sé…

  • 10, LA8 AMPLIFIED CONTROLLER User Manual VERSION 1.1 LA8_UM_EN_1.1 www.l-acoustics.com 8 en 3 INTRODUCTION 3.1 Welcome to L-ACOUSTICS Thank you for purchasing the L-ACOUSTICS ® LA8 Amplified Controller. This manual contains important information on installing and operating the product correctly and safely. Read this manual carefully in order to fa…

  • 57, LA8 CONTROLEUR AMPLIFIE Manuel Utilisateur VERSION 1.1 LA8_UM_ML_1.1 www.l-acoustics.com 10 fr Le LA8 intègre dans sa mémoire interne les presets des produits L-ACOUSTICS spécifiés pour une puissance maximum de 1100 Watts sous 8 ohms et 1800 Watts sous 4 ohms. Les produits spécifiés …

  • 15, LA8_UM_ML_1.1 www.l-acoustics.com 13 en EN Figure 5: DSP architecture 5.2.3 A/D Converters The LA8 amplified controller is fitted with two cascaded 24 bit A/D converters…

  • 35, LA8_UM_ML_1.1 www.l-acoustics.com 33 en EN 7.4 On screen messages 7.4.1 Start-up sequence When the controller is switched on it goes through a start-up sequence and the LCD dis…

  • 82, L-Acoustics LA8 LA8_UM_ML_1.1 www.l-acoustics.com 35 fr F R 7.5.3 Informations de routage Une autre fonction des LED est d’indiquer le matriçage entre les voies d’…

  • 88, LA8_UM_ML_1.1 www.l-acoustics.com 41 fr F R 8.3.2 Son de mauvaise qualité 8.3.3 Surchauffe Surchauffe La quantité d’air disponible est-elle suffisante ? Nettoyer ou remplacer le…

  • 18, LA8 AMPLIFIED CONTROLLER User Manual VERSION 1.1 LA8_UM_EN_1.1 www.l-acoustics.com 16 en 6.2 Cooling The amplified controller uses a forced air cooling system to maintain a low and even operating temperature. All fan cooled L-ACOUSTICS amplified controllers have front to rear airflow. Therefore when stacking more than one unit in a rack, mount units directly…

  • 84, L-Acoustics LA8 LA8_UM_ML_1.1 www.l-acoustics.com 37 fr F R 7.6.7 Anomalies du DSP et du système d’exploitation Quand le DSP et le système d’exploitation LINUX ne peuvent pas communiquer entre eux, certains réglages…

  • L-Acoustics LA8 User Manual

  • L-Acoustics LA8 User Guide

  • L-Acoustics LA8 PDF Manual

  • L-Acoustics LA8 Owner’s Manuals

Recommended: RouterBOARD OmniTIK U-5HnD, SD83x4E, PMR500, 89271N — H690 — Headset, RACKMUX-V15

Links & Tools

Operating Impressions, Questions and Answers:

Источник

LA8 AMPLIFIED CONTROLLER

user manual

VERSION 7.0

w w w . l — a c o u s t i c s . c o m

SAFETY INSTRUCTIONS

1. Read this manual

2. Follow all SAFETY INSTRUCTIONS as well as DANGER and OBLIGATION warnings

3. Never incorporate equipment or accessories not approved by L-ACOUSTICS®

4. Read all the related PRODUCT INFORMATION documents before exploiting the system

The product information document is included in the shipping carton of the related system component.

5. Environments

Use the product only in E1, E2, E3, or E4 environments according to EN55103-2 standard.

6. Radio interference

A sample of this product has been tested and complies with the limits for the EMC (Electro Magnetic

Compatibility) directive. These limits are designed to provide reasonable protection against harmful interference

from electrical equipment. However, there is no guarantee that interference will not occur in a particular

installation.

7. Power cord caution

Do not use the product if the power cord is broken or frayed.

Protect the power cord from being walked upon or pinched — particularly at the plugs and the point where the

power cord exits from the apparatus.

8. Mains supply

Only connect the LA8 (CE type) or LA8US (US type) to an AC power outlet rated 230 V, 16 A, 50 — 60 Hz or

120 V, 30 A, 50-60 Hz.

Only connect the LA8JP (Japan model) to an AC power outlet rated 100 V, 30 A, 50 — 60 Hz or 200 V, 15 A,

50-60 Hz.

9. Three-phase circuit

Verify that each phase works, in particular the neutral one.

Balance the loads between the three phases.

Never try to reproduce a 230 V circuit connecting an LA8 or an LA8US to two live wires of a 120 V three-phase

circuit.

Never try to reproduce a 200 V circuit connecting an LA8JP to two live wires of a 100 V three-phase circuit.

10. Electrical generator

You must power on the generator before powering on the amplified controllers.

Verify that the amplified controllers are turned off before powering on the generator.

11. Thermal circuit breaker

Always interconnect a thermal circuit breaker between the product and the mains.

The circuit breaker current rating depends on the mains voltage rating as follows:

16 A for 230 V or 30 A for 120 V (LA8 or LA8US), 15 A for 200 V or 30 A for 100 V (LA8JP).

12. Grounding

To plug the controller to mains only use an outlet fitted with a pin tied to ground.

Do not defeat the ground pin of the outlet as it connects the controller to earth. If the local outlet is obsolete,

consult an electrician.

The product is fitted with a grounding-type plug. Do not defeat the ground wire connecting the plug’s female

contact to the product’s chassis.

13. Plug replacement

If the AC plug on the power supply cord of this product does not match the local outlet, it must be replaced by an

appropriate one. This operation should only be performed by qualified service personnel.

Verify that the cut-off plug is withdrawn from use, as it can cause severe electrical shock if connected to an AC

outlet.

Источник

[Page 1] L-Acoustics LA8

L LL LA8 A8A8 A8 a aa amplified controller mplified controllermplified controller mplified controller USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION VERSION VERSION VERSION 4 44 4. .. .0 00 0 w w w . l — a c …

[Page 2] L-Acoustics LA8

w w w . l — a c o u s t i c s . c o m LA4 LA4 LA4 LA4 CONTROLEUR AMPLIFIE CONTROLEUR AMPLIFIECONTROLEUR AMPLIFIE CONTROLEUR AMPLIFIE
…

[Page 3] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 1 11 1 1 11 1 SAFETY WARNINGS SAFETY WARNINGSSAFETY WARNINGS SAFETY WARNINGS All information hereafter detailed applies to the L-ACOUSTICS ® LA8 Amplified …

[Page 4] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 2 22 2 …

[Page 5] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 3 33 3 13. Plug replacement If the AC plug on the power supply cord of this product does not match the local outlet, it must be replaced by an appropriate o…

[Page 6] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 4 44 4 …

[Page 7] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 5 55 5 1.3 EC declaration of conformity L-ACOUSTICS ® 13 rue Levacher Cintrat Parc de la Fontaine de Jouvence 91462 Marcoussis Cedex France States that the fo…

[Page 8] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 6 66 6 …

[Page 9] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 7 77 7 7 OPERATION 25 7.1 On/Off switch …………………………………………………………………………………………………………………

[Page 10] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 8 88 8 …

[Page 11] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 9 99 9 3.3 Cross-references All along the manual, a bracketed number refers to a section. For example, [3.3] stands for the present section: Cross- references. …

[Page 12] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 10 1010 …

[Page 13] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 11 1111 11 Figure 2: Main system components related to the LA8 LA NETWORK MANAGER SOUNDVISION LA-RAK V-DOSC KUDO K1 K1-SB ARCS SB18 …

[Page 14] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 12 1212 …

[Page 15] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 13 1313 13 5.1.2 Simplified block diagram The core of the LA8 is a DSP engine driving four channels of amplification. The LA8 also features two analog or digital inputs…

[Page 16] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 14 1414 …

[Page 17] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 15 1515 15 Figure 5: DSP architecture 5.2.4 Amplifier section The LA8 amplifier section uses a Class D technology supporting the wide dynamic range…

[Page 18] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 16 1616 …

[Page 19] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 17 1717 17 6 66 6 INSTALLATION INSTALLATIONINSTALLATION INSTALLATION 6.1 Mounting The LA8 is two rack units high (2U) and can be mounted in an EIA-standard 19’�…

[Page 20] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 18 1818 …

[Page 21] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 19 1919 19 6.3.5 Power plug and wiring • The LA8 amplified controller is supplied with a CEE 7/7 power plug (16 A/250 V grounded). • The LA8US amplified controlle…

[Page 22] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 20 2020 …

[Page 23] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 21 2121 21 Figure 10: Analog input panel wiring Symmetrical (balanced) shielded cables are highly recommended as balanced signals are less sensitive to AC hum…

[Page 24] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 22 2222 …

[Page 25] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 23 2323 23 6.4.4 Loudspeaker cabling Enclosures can be cabled with the controller via two 4-point SpeakON ® connectors, each of them delivering two …

[Page 26] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 24 2424 …

[Page 27] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 25 2525 25 7 77 7 OPERATION OPERATIONOPERATION OPERATION 7.1 On/Off switch When switched on (Figure 14), the controller goes through a 25-second start-up sequence…

[Page 28] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 26 2626 …

[Page 29] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 27 2727 27 4. Last number in the IP address (1 to 253) The last number in the IP address identifies the current controller within a network of multiple LA4 and/or LA8 un…

[Page 30] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 28 2828 …

[Page 31] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 29 2929 29 Notes: Quick access gain function is only available from the main screen. Depending on the selected factory preset the output gain might be locked by L-ACOUSTICS…

[Page 32] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 30 3030 …

[Page 33] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 31 3131 31 7.4 LOAD PRESET This LOAD PRESET menu is for loading a preset from the 99 onboard memory locations: 11 to 99: Allocated memory locations for L-ACOUSTICS…

[Page 34] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 32 3232 …

[Page 35] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 33 3333 33 7.6 DELETE PRESET The DELETE PRESET menu is for deleting a preset from a user memory location (1-10). If no user presets are stored the NO PRESET PRESENT mes…

[Page 36] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 34 3434 …

[Page 37] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 35 3535 35 7.8 CLEAR GROUP PARAMETERS The CLEAR GRP PARAM function is for resetting to their nominal values all group parameters such as name, gain, delay…

[Page 38] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 36 3636 …

[Page 39] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 37 3737 37 7.9.1 NETWORK ADDRESS control It is possible to connect up to 253 LA4 and LA8 amplified controllers in multiple network topologies via the proprietary L-NE…

[Page 40] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 38 3838 …

[Page 41] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 39 3939 39 7.9.3 FALLBACK MODE control This control page is for enabling or disabling the automatic fallback option. When enabled, and when the AES/EBU INPUT MODE is se…

[Page 42] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 40 4040 …

[Page 43] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 41 4141 41 7.9.8 SCREEN CONTRAST control The SCREEN CONTRAST control page is for setting the LCD screen contrast. Modify this setting by applying the following procedur…

[Page 44] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 42 4242 …

[Page 45] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 43 4343 43 8.2 Authorized service procedure 8.2.1 Replacement kits The replacement kits (KR) available for the customer are shown in Figure 37 and listed in Table 7 …

[Page 46] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 44 4444 …

[Page 47] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 45 4545 45 Refer to the Malfunction message flowchart below for eventual troubleshooting operations: No Switch the amplified controller off and on. If the …

[Page 48] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 46 4646 …

[Page 49] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 47 4747 47 8.3.3 No DIGITAL input signal AES/EBU functionalities available? [7.9.3-7.9.4] AES/EBU LOCK message displayed? [7.9.2] Install the latest …

[Page 50] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 48 4848 …

[Page 51] L-Acoustics LA8

LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 49 4949 49 9 99 9 SPECIFICATIONS SPECIFICATIONSSPECIFICATIONS SPECIFICATIONS GENERAL Dimensions (W x H x D) 483 x 88,1 (2U) x 428 mm 19 x 3.5 (2…

[Page 52] L-Acoustics LA8

LA LALA LA8 88 8 AMPLIFIED CONTROLLER AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER AMPLIFIED CONTROLLER USER MANUAL USER MANUALUSER MANUAL USER MANUAL VERSION 4.0 LA8_UM_EN_4-0 w w w . l — a c o u s t i c s . c o m 50 5050 …

[Page 53] L-Acoustics LA8

w w w . l — a c o u s t i c s . c o m
…

[Page 54] L-Acoustics LA8

w w w . l — a c o u s t i c s . c o m LA4 LA4 LA4 LA4 CONTROLEUR AMPLIFIE CONTROLEUR AMPLIFIECONTROLEUR AMPLIFIE CONTROLEUR AMPLIFIE
…

[Page 55] L-Acoustics LA8

w w w . l — a c o u s t i c s . c o m
…

[Page 56] L-Acoustics LA8

Document reference: LA8_UM_EN_4-0 Distribution date: April 29 th , 2011 © 2011 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…
Источник

Table of Contents for L-Acoustics LA8:

  • LA8 AMPLIFIED CONTROLLER USER MANUAL VERSION 5.0 LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 12 2.2.3 DSP architecture The proprietary algorithms allow optimum performance and protection of each individual transducer of the L-ACOUSTICS ® systems for an even more natural, transparent, and realistic sound experience.  The DSP engine is a 32-bit floating point DSP at 96 kHz sampling rate offering an enhanced dynamic range since it does not generate calculation clips like

  • LA8 AMPLIFIED CONTROLLER USER MANUAL VERSION 5.0 LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 36 4.9.2 INPUT MODE This function allows selecting the physical input connector according to the audio source feeding the amplified controller:  An analog audio source connects to the IN A and/or IN B inputs of the ANALOG panel (see Figure 7). In t

  • LA8 AMPLIFIED CONTROLLER USER MANUAL VERSION 5.0 LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 34 4.9 OPTIONS OPTIONS is a control and monitoring menu allowing to:  Set the amplified controller IP address, input mode (analog or AES/EBU as well as fallback options), delay unit (ms, meters, feet, or samples), and LCD screen contrast.  Display in real-time the temperatur

  • LA8 AMPLIFIED CONTROLLER USER MANUAL VERSION 5.0 LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 18 Figure 9: Analog input panel wiring Balanced cables Symmetrical (balanced) shielded cables are highly recommended as balanced signals are less sensitive to AC hum and radio interference. Unbalanced lines may add noise especially over long cable runs. 3.4.3 AES/EBU digital audio cabling Both AES/EBU XLR connectors on the LA8 are transformer balanced and wired according to IEC 268. The 3-point female XLR input

  • LA8 AMPLIFIED CONTROLLER USER MANUAL VERSION 5.0 LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 42 Output channels Output channel temperature The fans associated to the heat sinks operate permanently, but as long as the temperature remains below 40 °C they run at their slowest speed and can hardly be heard. The highest detected temperature controls the speed of the fans. Above 40 °C the sp

  • LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 29 4.4 LOAD PRESET A preset can be loaded from the following menu pages: Table 4: LOAD PST pages Page Memory range Contents LOAD PST USER 1 – 10 (read and write) User presets stored by the user (refer to section 4.5). LOAD PST FACTORY 11 – 199 (read only) Factory preset library created by L-ACOUSTICS ® and automatically installed during firmware update (refer to the LA NETWORK MANAGER video tutorial). To load a preset follow t

  • LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 37 Sound cut can be avoided using the FALLBACK MODE (refer to section 4.9.3) and a backup analog audio source. In case of UNLOCK status the ANALOG inputs will automatically be selected, leading to one of the screens of Figure 33. AN.FBACK indicates that the amplified controller has switched from AES/EBU to ANALOG inputs. The text displayed on

  • LA8 AMPLIFIED CONTROLLER USER MANUAL VERSION 5.0 w w w .l -acou s ti cs . com

  • LA8 AMPLIFIED CONTROLLER USER MANUAL VERSION 5.0 LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 46

  • LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 11 2.2 Signal processing and amplification 2.2.1 Analog input The LA8 can be fed with two balanced analog audio signals using the appropriate XLR input ports (see Figure 2). Each of the analog input ports is ESD protected and equipped with one XLR3 female connector. The analog input panel also features two XLR link ports passively connected to the input ports. It allows transmitting the input signals to da

  • LA8 AMPLIFIED CONTROLLER USER MANUAL VERSION 5.0 LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 2 SAFETY INSTRUCTIONS 1. Read this manual 2. Read all SAFETY INSTRUCTIONS carefully as well as DANGER and OBLIGATION warnings 3. Never incorporate equipment or accessories not approved by L-ACOUSTICS ® 4. Read all the related PRODUCT INFORMATION do

  • LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 27 Figure 22: Pressing IN A or IN B Input voltage values The SIGNAL LED is lit when the input voltage reaches -37.8 dBu (analog audio source) or -59.8 dBfs (digital audio source). The CLIP LED is lit when the input voltage reaches 22 dBu (analog audio source) or -0.1 dBfs (digital audio source). Reminder: -37.8 dBu = 10 mV and 22 dBu = 9.8 V.

  • LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 21 3.4.5 L-NET cabling The LA8 can be remote controlled over an Ethernet network (called L-NET) using LA NETWORK MANAGER software (refer to the LA NETWORK MANAGER video tutorial). To connect the LA8 to L-NET use the Ethernet RJ45 connectors on the LA8 rear panel (see Figure 7). L-NET cables specifications Connect the computer and the amplified controllers to the L-NET network using straight-through Ethernet cables of CAT5e U/FTP category (or hig

  • LA8_U M_E N_5 .0 w w w . l — a c ou s t i c s . c o m 43 APPENDIX B: APPROVALS EC declaration of conformity L-ACOUSTICS ® 13 rue Levacher Cintrat Parc de la Fontaine de Jouvence 91462 Marcoussis Cedex France States that the following product: LA8 amplified controller. Is in conformity with the provisions of: 2006/95/EC: Low Voltage Directive; 2004/108/EC: Electro-Magnetic Compatibility Directive. Applied rules and standards: EN60065: Safety requirements for audio, video and similar electronic apparatus. EN55103-1: Electromagnetic

Questions, Opinions and Exploitation Impressions:

You can ask a question, express your opinion or share our experience of L-Acoustics LA8 device using right now.

Источник

Понравилась статья? Поделить с друзьями:
  • Ballu кондиционер пульт управления инструкция теплый воздух на кондиционере
  • Овд люблино руководство
  • Руководство как структурное подразделение
  • Руководство по кали линукс на русском
  • Проводимая в период руководства страной хрущевым