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LAB lake LMX 88 Operation Manual

Audio system processor for system control in high-performance application
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Operation Manual
V 1.0
LMX 88/LMX 48
Audio System Processor for System Control in High-Performance Applications

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  • Page 1 Operation Manual V 1.0 LMX 88/LMX 48 Audio System Processor for System Control in High-Performance Applications...

  • Page 2: Table Of Contents

    LMX 88/48 Operation Manual Table of Contents 1. Welcome ..............12 6. Back Panel Interface ..........29 1.1 Introduction ................. 12 6.1 Analog Inputs and Outputs ........... 29 1.2 Main Features ..............12 6.2 AES3 Digital Input and Output ........30 2.
  • Page 3 All trademarks are the property of their service personnel. cualificado. Para evitar el riesgo de una descarga eléctrica, respective owners. Midas, Klark Teknik, Lab Gruppen, no realice reparaciones que no se encuentren descritas Warning Lake, Tannoy, Turbosound, TC Electronic, TC Helicon, en el manual de operaciones.
  • Page 4 Les éventuelles réparations doivent de sus respectivos dueños. Midas, Klark Teknik, être effectuées uniquement par un technicien spécialisé. Lab Gruppen, Lake, Tannoy, Turbosound, TC Electronic, DÉNI LÉGAL TC Helicon, Behringer, Bugera, Aston Microphones y Avertissement Coolaudio son marcas comerciales o marcas registradas Veuillez vous référer aux informations...
  • Page 5 Trennvorrichtung leicht bedienbar bleiben. à leurs propriétaires respectifs. Midas, Klark Teknik, 15. Vermeiden Sie die Installation in engen Räumen wie Vorsicht Lab Gruppen, Lake, Tannoy, Turbosound, TC Electronic, Bücherregalen. Die Service-Hinweise sind nur durch TC Helicon, Behringer, Bugera, Aston Microphones et qualifiziertes Personal zu befolgen.
  • Page 6 Todas as marcas são propriedade de seus informações elétricas e de segurança antes de instalar ou Per ridurre il rischio di scosse elettriche non eseguire respectivos donos. Midas, Klark Teknik, Lab Gruppen, operar o dispositivo. interventi di manutenzione diversi da quelli contenuti Lake, Tannoy, Turbosound, TC Electronic, TC Helicon, nel manuale di istruzioni.
  • Page 7 Midas, Klark Teknik, Om het risico op brand of elektrische gebruikt, moet het ontkoppelingsapparaat gemakkelijk Lab Gruppen, Lake, Tannoy, Turbosound, TC Electronic, schokken te beperken, dient u te bedienbaar blijven. TC Helicon, Behringer, Bugera, Aston Microphones e voorkomen dat dit apparaat wordt blootgesteld aan regen 15.
  • Page 8 ändras utan föregående meddelande. bruksanvisningen. Endast kvalificerad fackpersonal får Uwaga Alla varumärken tillhör respektive ägare. Midas, genomföra reparationerna. Klark Teknik, Lab Gruppen, Lake, Tannoy, Turbosound, Prace serwisowe mogą być wykonywane Varning TC Electronic, TC Helicon, Behringer, Bugera, Aston jedynie przez wykwalifikowany personel.
  • Page 9 用するためのものです。 操作説明書に含ま odpowiednich właścicieli. Midas, Klark Teknik, 2. Trzymaj urządzenie z dala od wody (z wyjątkiem れているもの以外のサービスを行わないで Lab Gruppen, Lake, Tannoy, Turbosound, TC Electronic, produktów przeznaczonych do użytku na zewnątrz). ください。 修理は有資格のサービス担当者 TC Helicon, Behringer, Bugera, Aston Microphones i 3. Czyść tylko suchą szmatką.
  • Page 10 有的警示。 对于任何因在此说明书提到的全部或部份 请勿在靠近水的地方使用本产品。 Music Tribe 描述、 图片或声明而造成的损失, 请用干布清洁本产品。 不负任何责任。 技术参数和外观若有更改, 恕不另行通知。 所有的商标均为其各自所 请勿堵塞通风孔, 安装本产品时请遵照 Midas, Klark Teknik, Lab Gruppen, 有者的财产。 厂家的说明, 通风孔不要覆盖诸如报纸, 桌 Lake, Tannoy, Turbosound, TC Electronic, TC Helicon, 布和窗帘等物品而妨碍通风。 Behringer, Bugera, Aston Microphones Coolaudio 和 请勿将本产品安装在热源附近, 如暖 Music Tribe Global Brands Ltd.
  • Page 11 LMX 88/48 Operation Manual...

  • Page 12: Welcome

    LMX 88/48 Operation Manual 1. Welcome 1.1 Introduction 1.2.3 Dante Audio Network Thank you for choosing the Lake LMX Series of Digital Audio Processors. LMX Series devices include Dante digital audio networking as standard. We are confident that you will be pleased with the performance, unique Utilizing the latest advances in Ethernet technology, Dante offers simplified features, configuration flexibility, reliability, and long-term durability offered system configuration and extremely low latency while delivering very high...

  • Page 13: Installation

    LMX 88/48 Operation Manual 2. Installation 2.1 Unpacking 2.2 Mounting Carefully open the shipping carton and check for any damage to the device or the Airflow for cooling the device is from front panel intake to rear panel exit. supplied accessories. Every Lake product is tested and inspected before leaving Please ensure that no objects such as rack doors or lids are placed at the front or the factory and should arrive in perfect condition.

  • Page 14: Cooling

    LMX 88/48 Operation Manual 2.3 Cooling 2.4 Operating Voltage The LMX series use a forced air cooling system with airflow from front to rear. The LMX Series devices are equipped with dual independent universal power To optimize air circulation, ensure that no objects such as rack doors or lids supplies with two separate locking IEC mains inlets, allowing the LMX to be obstructs the front or rear of the rack.

  • Page 15: Product Overview

    LMX 88/48 Operation Manual 3. Product Overview This chapter provides an overview of key features and functionality. For further information please see chapters 5 to 8 of this Operation Manual. 3.1 Front Panel Overview (3) (4) (10) (11) (13) (13) (12) (3) (4) (10)

  • Page 16: Back Panel Overview

    LMX 88/48 Operation Manual 9. Display 12. Module Input / Output Mute Buttons and LED Meters The full color IPS display illuminates when the device is on. The LCD, function Independent mute buttons and LED meters are provided for the Module inputs buttons, and the rotary encoder provide real-time control and monitoring of and outputs.
  • Page 17 LMX 88/48 Operation Manual For a technical reference of the Ethernet Port, please refer to section 6.4. 19. GPI Connector Additional information is available in the Lake Network Configuration Guide. An RJ45 GPI (General Purpose Input) connection is provided to enable integration If the LMX devices have Dante dual redundancy disabled all five ethernet ports with external systems such as alarm/fire systems, providing basic control of (three on the back and two on the front) will work in the same way.
  • Page 18 LMX 88/48 Operation Manual 17. GPI Connector 23. Secondary Connector An RJ45 GPI (General Purpose Input) connection is provided to enable integration The secondary network connectors can be used to daisy-chain multiple LMX with external systems such as alarm/fire systems, providing basic control of and/or other Lake devices.

  • Page 19: Signal Flow And Lake Processing

    LMX 88/48 Operation Manual 4. Signal Flow and Lake Processing 4.1 Signal Flow The figures below depict the audio signal flow for LMX Series devices configured in Contour mode, Mesa modes or a combination of both in Contour/Mesa mode. It is worth noting that this sophisticated device provides up to five points in the signal chain where the signal level can be adjusted, muted or disconnected (depending on whether configured in Contour Mode, Mesa Mode or Contour/Mesa Mode as described below).
  • Page 20 LMX 88/48 Operation Manual Module Input Section Module Output Section LMX 88 Input Gain Gain / Delay LimiterMax Delay HPF/LPF LMX 88 Mixer A Polarity / Mute Polarity / Mute RMS / Peak Analog 1-8 Analog 1-8 AES3 1-8 Dante 1-8 AES3 1-8 AES50 1-96 Dante 1-8...

  • Page 21: Lake Processing And Control

    LMX 88/48 Operation Manual LMX 88 Module Output Section Analog 1-8 AES3 1-8 Dante 1-8 Gain / Delay LimiterMax Polarity / Mute RMS / Peak AES50 1-96 Module Input Section Gain / Delay LimiterMax LMX 48 Polarity / Mute RMS / Peak Input Gain Delay...

  • Page 22: Modules And Frames

    LMX 88/48 Operation Manual 4.3 Modules and Frames The device configuration may be changed either via the Front Panel MENU > FRAME > FRAME RESET (refer to section 5.9.2.2) or via the Lake Controller 4.3.1 MODULES > I/O CONFIG > FRAME CONFIG menu (refer to the Lake Controller Overview Operation Manual).

  • Page 23: Front Panel Interface

    LMX 88/48 Operation Manual 5. Front Panel Interface (3) (4) (10) (11) (12) (3) (4) (10) (13) (11) (12) Figure 5-1: Front Panel Interface 5.1 Overview 5.4 Menu Button The front panel interface is framed by two cast aluminum handles (1) and Menu Mode is selected by pressing the MENU button.

  • Page 24: Module I/O Mute Buttons And Led Meters

    LMX 88/48 Operation Manual 5.6.2 Some parameters enable simultaneous adjustment of a combination of input and Fault and Warning LEDs (A) output channels. To select which parameters are adjusted: All LEDs around the display flash red when a Fault is present, and flash yellow when a Warning is present.

  • Page 25: Meter Mode

    LMX 88/48 Operation Manual 5.8 Meter Mode 5.9 Menu Mode 5.8.1 Home View (Contour Mode) 5.9.1 Overview Contour Mode is the Meter Mode Home View as shown in Figure 5-5. The front panel allows an overview of some settings. These functions include the ability to recall Frame Presets, configure various parameters such as Mains warning, GPI state, analog input Iso-Float and AES3/Word Clock Termination and view important parameters such as firmware version, MAC address,...
  • Page 26 LMX 88/48 Operation Manual 5.9.1.1 Menu Structure Overview From the Main Menu, the following submenus are available, as shown in Figure 5-9 and described in the following sections. Meter View Scene Preset Menu (HOME) Scene Preset AES/ Word Clock Frame Network Frame Presets Mains...
  • Page 27 LMX 88/48 Operation Manual 5.9.2.2 Frame Reset and Configuration GPI Configuration MENU > FRAME > FRAME RST The current state of the four GPI inputs can be seen in the GPI menu view. Configuration of the desired settings for each GPI input can only be carried out Use this option to display a further menu with options to reset all parameters using the Lake Controller software.
  • Page 28 LMX 88/48 Operation Manual The current state (open/closed) is reported for all GPI settings on the front panel 5.9.4 Frame Preset Menu and in the Lake Controller software. MENU > FRAME PRST Table 5-2: Default GPI Configuration Menu/Frame Preset Frame Preset Recall GPI # Default Option Preset...

  • Page 29: Back Panel Interface

    LMX 88/48 Operation Manual 6. Back Panel Interface (5) (7) (8) (13) & & (6) (10) (11) (12) (14) Figure 6-1: Back Panel Interface (LMX 48) (8) (9) (14) (11) (10) (12) (13) Figure 6-1: Back Panel Interface (LMX 88) 6.1.2 Analog Output XLR Connections 6.1 Analog Inputs and Outputs...

  • Page 30: Aes3 Digital Input And Output

    LMX 88/48 Operation Manual 6.3 Word Clock Input and Output 6.1.4 Unbalanced Operation Balanced connections are recommended where possible. However, if it is 6.3.1 Word Clock Input necessary to drive the device from equipment with an unbalanced output, wire the inputs as shown in Figure 6-3. Word clock input on female BNC connector with selectable 75 Ohm Termination available from Front panel or Lake Controller.

  • Page 31: Aes50 Input And Output

    LMX 88/48 Operation Manual 6.5 AES50 Input and Output 6.7 Redundant Universal Power Supply Connectors (13) (14) Interface A (7) and Interface B (8) AES50 RJ45 ports can each act as a master or slave independently. Two universal power supplies capable of accepting 90-264 V ~ 50-60 Hz: 75 W are built into the devices.

  • Page 32: Appendix

    LMX 88/48 Operation Manual 7. Appendix 7.1 Faults and Warnings Overview Fault or warning conditions are indicated by the LEDs and brief textual description of the fault or warning is provided on the display. Table 7-1 lists all Faults and Warnings and what may have triggered each fault or warning condition.
  • Page 33 LMX 88/48 Operation Manual Warnings LMX Display Lake Controller Lake Controller Event Log Description FPGA B UPDATE FPGA B UPDATE Frame warning: FPGA B is updating FPGA B is updating, please wait and let the device update the internal components. PSU-B SERVICE PSU-B SERVICE Frame warning: PSU-B Service There is a problem with the power supply B for the device.

  • Page 34: Maintenance

    LMX 88/48 Operation Manual 7.2 Maintenance During normal operation these devices provides trouble-free service. If the front panel display requires cleaning, use a soft cloth only; do not use solvent cleaners. Clean the dust filters to ensure maximum airflow through the device, which is front to back. Disconnect the unit from mains power prior to removing dust the filter and ensure the dust filter is replace prior to turning the unit back on.

  • Page 35: Glossary Of Terms, Acronyms And Abbreviations

    Designations of industry-standard cables suitable for Ethernet networks using four twisted pairs of conductors. Often referred to as UTP cable (Unscreened Twisted Pair). Cat-5 has generally been replaced by shielded Cat-5e (e = ‘enhanced’). Either shielded Cat-5e or Cat-6 cable are suitable for networking Lake and Lab.gruppen devices. Chain An Ethernet network comprising several devices interconnected using the Secondary connectors to daisy-chain the units together is an example of a network with a chain topology.
  • Page 36 LMX 88/48 Operation Manual Term Description Event Log The details of any fault or warning conditions which arise in the device during operation are recorded in a data file created by the Lake Controller software called the Event Log. Fault A Fault in the device occurs when one of the operating parameters exceeds pre-determined safety levels, or when a condition is detected that otherwise seriously affects the performance.
  • Page 37 LMX 88/48 Operation Manual Term Description Module Module is the term used in the Lake Controller to describe the virtual set of signal processing that routes an audio input to the various frequency-weighted outputs of a crossover. The processing system within the device allows for two Modules, each of which may be assigned a range of crossover configurations, input sources, etc.
  • Page 38 LMX 88/48 Operation Manual Term Description Universal Power Supply A power supply that operates in all countries, without the need for manual adjustment, as long as the voltage falls within the specified range for the device. Vrms The RMS voltage of a signal. See RMS. Wireless Access Point A device used to connect a computer to an Ethernet network without cables;...

  • Page 39: Application Guide

    LMX 88/48 Operation Manual 8. Application Guide 8.1 Gain Structure 8.3 Digital Audio Connections The LMX Series architecture provides gain adjustments at various points in Whenever possible, it is preferable to connect a digital rather that analog input the signal path and therefore, various places for muting and level adjustment. signal to the device.

  • Page 40: Digital Clock Configuration

    LMX 88/48 Operation Manual 8.3.4 8.3.3.2 Passive Splitters Additional Reference Material In some limited applications, a single AES3 input may be split into two signals Complete technical information on the AES/EBU (AES3) standard can be downloaded using a simple passive splitter. Splitters provide a convenient and low cost from the AES web site at http://www.aes.org/publications/standards/.
  • Page 41 LMX 88/48 Operation Manual 8.4.2 8.4.5 Clock Source Priorities AES50 There are two options for Primary clock source configuration: AES50 is a multichannel point-to-point audio-over-ethernet protocol, defined by Manual Configuration or Automatic Detection. the AES50-2011 standard. It allows a maximum of 48 bi-directional full duplex signals to be transmitted over shielded CAT5 cable to distances of up to 100 Second and third are always manual.
  • Page 42 LMX 88/48 Operation Manual 8.4.6 Signal Processing Latency The information in Table 8-1 lists the total latency for common input-output configurations when Pass-thru and when the audio passes through the Module processing. Table 8-1: Latency for Common I/O Configurations Total Latency (ms) Input Config Output Config Pass-thru (direct route)

  • Page 43: Lmx 48 Technical Specification

    LMX 88/48 Operation Manual 9. LMX 48 Technical Specification Analog Front-Panel User Interface Display Daylight readable full color IPS Inputs 4x inputs with Iso-Float™ ground (320 x 210) isolation configurable (connectors shared with AES3 inputs) Fault/Warning detailed description Outputs 8x outputs (connectors shared on display with AES3 Outputs) Menu...
  • Page 44 LMX 88/48 Operation Manual Internal clock Inputs 4x General Purpose Inputs (GPI) Oscillator type High quality VCXO clock supporting external contact closure Syncronization Can syncronize to any digitial input and Software configurable Standby state, Mute state, output any input clock on any output input control Dual preset recall, Scene preset recall, Synchronous / Asynchronous...

  • Page 45: Lmx 88 Technical Specification

    LMX 88/48 Operation Manual 10. LMX 88 Technical Specification Front-Panel User Interface Analog Display Daylight readable full color IPS Inputs 8x inputs with Iso-Float™ ground (320 x 210) isolation configurable per blocks of 4 Fault/Warning detailed description Outputs 8x outputs on display Frequency Response, +/-0.05 dB, 20 Hz to 20 kHz...
  • Page 46 LMX 88/48 Operation Manual Internal clock Inputs 4x General Purpose Inputs (GPI) Oscillator type High quality VCXO clock supporting external contact closure Syncronization Can syncronize to any digitial input and Software configurable Standby state, Mute state, output any input clock on any output input control Dual preset recall, Scene preset recall, Synchronous / Asynchronous...

  • Page 47: Warranty And Support

    LMX 88/48 Operation Manual 11. Warranty and Support 11.1 International Warranties Please contact your supplier or distributor for this information, as rights and disclaimers may vary from country to country. 11.2 Technical Assistance and Service 11.2.1 International Service If your Lake product requires repair, contact your Lake dealer or distributor, or contact Lake by email to obtain the location of the nearest authorized service center.
  • Page 48 LMX 88/48 Operation Manual FEDERAL COMMUNICATIONS COMMISSION COMPLIANCE INFORMATION Lake LMX 88/48 Music Tribe Commercial NV Inc. Responsible Party Name: 122 E. 42nd St.1, Address: 8th Floor NY, NY 10168, United States legal@musictribe.com Email Address: LMX 88/48 This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.

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