Rev. 1.3.6 Item no.
1. Important safety instructions 1. Important safety instructions Before using the device, be sure to carefully read the Safety Instructions. Keep this document with the device at all times. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 2 Read these instructions. Keep these instructions Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any ventilation openings.
. Warnings To completely disconnect this equipment from the AC mains, disconnect the power supply cord plug from the AC receptacle. The mains plug of the power supply cord shall remain readily operable. Français: Pour démonter complètement l’équipement de l’alimentation générale, démonter le câble d’alimentation de son réceptacle. La prise d’alimentation restera aisément fonctionnelle. To reduce risk of fire or electric shock, do not expose this apparatus to rain or moisture.
. Table of Contents 4. Table of Contents 1. Important safety instructions 2 1.1 Approvals 2 1.2. Explanation of warning symbols 2 1.3. Warnings 2 1.4. Caution 3 1.5. User responsibility 3 2. Introduction 6 2.1. Welcome 6 2.2. Main Features 6 2.2.1. Lake Processing and Controller 6 2.2.2. Analyzer Plug-In 6 2.2.3. Dante™ Audio Network 7 2.3. Additional Documentation 3. Installation 7 8 3.1. Unpacking 8 3.2. Mounting 8 3.3. Cooling 8 3.4.
4. Table of Contents 5.7. Files and Presets 17 5.7.1. Module, System and Sub-System Configuration Files 18 5.7.2. Frame and System Presets 18 6. Quick Start Tutorial 19 6.1. Introduction 19 6.2. LAKE Processing and Control 19 6.3. Installing the LAKE Controller Software 19 6.3.1. Overview 19 6.3.2. Software Installation 20 6.3.3. Software and Firmware Updates 20 6.3.4. Ethernet Configuration 20 6.4. LM Series Configuration Tutorial 21 6.5.
2. Introduction 2. Introduction 2.1. Welcome Thank you for choosing the LAKE LM Series of Digital Audio Processors. We are confident that you will be pleased with the performance, unique features, configuration flexibility, reliability, and long-term durability offered by this product. For fast installation and use of this product, your welcome package includes a printed copy of the LM Series Quick Start Guide which contains the information required to safely install the product and place it in service.
2. Introduction 2.2.3. Dante™ Audio Network LM Series devices include Dante digital audio networking as standard. Utilizing the latest advances in Ethernet technology, Dante offers simplified system configuration and extremely low latency while delivering very high quality uncompressed digital audio across the LAKE network. The Zen™ automatic configuration feature enables plugand-play setup without third-party DHCP or DNS servers.
3. Installation 3. Installation 3.1. Unpacking Carefully open the shipping carton and check for any damage to the device or the supplied accessories. Every LAKE product is tested and inspected before leaving the factory and should arrive in perfect condition. If any damage is discovered, please notify the shipping company immediately. Only the consignee may initiate a claim with the carrier or their insurers for damage incurred during shipping.
3. Installation NOTE: The Processor will NOT mute or shut down when the temperature reaches or exceeds 70° C (158° F), however, sustained performance at this temperature cannot be guaranteed. 3.4. Operating voltage The label above the IEC connector indicates the AC mains voltage range for which the device is approved. LM Series devices utilize a universal power supply, and will operate within the range 70-265 V ~ 50 - 60 Hz: 25W.
4. Product overview 4. Product overview 4.1. Front panel Figure 4.1: LM Series Front Panel Layout The front panel controls are clustered around a daylight readable LCD 3 , allowing adjustment and monitoring of the majority parameters and meters. The two clusters of controls on either side of the LCD include five dedicated function buttons 4 5 6 , six dynamic function buttons with embedded LEDs 7 8 and a rotary data encoder 9 .
4. Product overview Exit - The EXIT button is used primarily while navigating the menu system in Menu Mode; pressing EXIT will return the menu up one level. In Meter Mode, pressing EXIT returns the metering display to the default Home View. 6 Dynamic Function Buttons with LEDs (Left of LCD) - The function of these buttons change according to the currently selected view or menu.
4. Product overview 4.2. Rear panel 1 2 3 4 5 6 7 4 5 6 7 Figure 4.2: LM 26 Back Panel Layout 1 2 3 Figure 4.4: LM 44 Back Panel Layout Analog Outputs - Analog outputs are provided via standard XLR3M connections. The outputs are electronically balanced and feature LAKE Iso-Float circuitry; it is not recommended to use unbalanced connections. The output impedance is 50 ohms, providing a maximum output level of +21 dBu. Please refer to section 7.
4. Product overview Use the primary connector when using a star network topology, consisting of individual Cat-5e connections between the devices and an Ethernet switch. Alternatively this connection can be used to daisy chain directly to another LAKE Processor. The daisy chain topology should not be used with Dante. For a technical reference of the Ethernet Port, please refer to section 7.3 of the LM Series Operation Manual. Additional information is also available in the LAKE Network Configuration Guide.
5. Signal Flow and LAKE Processing 5. Signal Flow and LAKE Processing 5.1. Signal flow The figures below depict the audio signal flow for LM Series devices configured in both Contour and Mesa modes. 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 or Mesa Mode as described below).
5. Signal Flow and LAKE Processing Figure 5.2: LM Series Signal Flow (Mesa Mode) Please refer to section 6.9.4.2 of the LM Series Operation Manual for information on changing the Frame configuration between Contour and Mesa Modes. The numbers below correspond the points identified in Figure 5.1 and 5.2.
5. Signal Flow and LAKE Processing 5.2. LAKE Processing and Control As outlined in section 2.2.1, this device integrates seamlessly into the LAKE Processing environment, providing all features, functionality and connectivity associated with all LAKE Processors. The internal LAKE Processing includes programmable crossovers, EQ, dynamics and other functions, and can be fully controlled via the supplied LAKE Controller software.
5. Signal Flow and LAKE Processing 5.4. Loudspeaker Processor (Contour Mode) Overview In Contour Mode, LM Series devices may be configured with up to two processing Modules containing a total of up to six processing Module outputs as shown in Figure 5-1 on page 11. Each set of processing elements is referred to as a Module and can be configured as crossovers, full-bandwidth auxiliary outputs, or a combination of the two.
5. Signal Flow and LAKE Processing 5.7.1. Module, System and Sub-System Configuration Files Module, System and Sub-System Configuration files are stored on the LAKE Controller PC, and data is passed across the network when recalling or storing these type of files. • A Module file is the smallest set of data that can be stored and recalled; it contains crossover, gain, delay, and limiter information for an individual loudspeaker (i.e. the data shown in red in the signal flow diagrams in section 5.1).
6. Quick Start Tutorial 6. Quick Start Tutorial 6.1. Introduction This section describes installation of the LAKE Controller software, input and output connections, basic functionality, and setup instructions. The information provides a basic level of understanding of the system architecture along with configuration instructions for a basic system application. The tutorial in section 6.4 provides a step-by-step example for configuring this device for use with a generic professional sound system.
6. Quick Start Tutorial 6.3.2. Software Installation To download the latest LAKE Controller Software, please visit; http://lakeprocessing.com/ and locate the “Download” section. Click on the appropriate link and follow the on-screen instructions. Note the destination location of the downloaded installation folder in case you need to find it when the download is completed. Once the software is installed, the application is launched by double-tapping the LAKE icon on the Windows desktop.
6. Quick Start Tutorial 6.4. LM Series Configuration Tutorial This tutorial provides a step-by-step guide for configuration of a typical professional loudspeaker system and provides an overview of the basic features and operation of LM Series devices. This tutorial uses the LAKE Controller software for configuration, although many steps are also available via the front panel interface.
6. Quick Start Tutorial 12. Double-tap the Default Modules folder then double-tap the Contour Classic Crossovers folder. A set of loudspeaker symbols will be displayed. 13. Tap CL3w+1a, and then tap the RECALL button. This configures the DSP for the Module A as a 3-way crossover, plus a separate auxiliary channel. 14. Tap YES when asked to confirm that all data will be overwritten; tap 2-Way on the subsequent dialog regarding Module B configuration (not be used during this tutorial). 15.
6. Quick Start Tutorial Figure 6.1: Classic 3+1 Analog Output Configuration 28. If the output assignments are not as shown, tap the Clear All Assignments button (split arrows); tap YES to the warning dialog box; then tap the numeric buttons correctly route the audio to the appropriate physical output/s. 29. Tap the return key to close this screen and return to I/O CONFIG. 30.
6. Quick Start Tutorial 32. There are five gain faders displayed (1 Module Input, 4 Module Outputs). Set the values by dragging the fader, or by tapping the blue highlighted values at the top of the screen: • • • • • INPUT: LOW-1: MID-2: HIGH-3: AUX-4: -0.00 dB -3.00 dB -6.00 dB -12.00 dB 0.00 dB 33. Tap the EQ tab at the top-left of the screen, then tap the XOVER tab.
6. Quick Start Tutorial 6.5.2. Input Mixer Input Mixer gains can remain at 0.00 dB for most configurations; if only one input channel is used per Module, the other can be set to -INF. 6.5.3. Module Input Gain Input Gain is used to adjust the level between different speaker cabinets in the system. This gain can remain at 0.00 dB unless a lower level is required for the cabinet/s driven by this Module. NOTE: Module Input Gain is not applicable for LM Series devices configured in Mesa Mode. 6.5.4.
7. LM 26 Technical Specifications 7.
8. LM 44 Technical Specifications 8. Technical Specifications LMLM 44:44 Specifications Lake features Module configuration Processing channels Input routers Module input mixer Input processing Output processing Features Limiters SuperModule compatible Audio performance Conversion resolution Internal sample rate Internal data path Product propagation delay 2 Contour or 4 Mesa modules 6 in Contour mode, 4 in Mesa mode 8 input routers with 4 priorities in each, seamless failover to lower priorities 4 ch.
9. Warranty and support 9. Warranty and support 9.1. General This product is manufactured by LAKE, and it is warranted to be free from any defects caused by components or factory workmanship, under normal use and service, for a period of three (3) years from date of purchase from an authorized LAKE dealer.
9. Warranty and support 9.2.2. Factory service In the event a LAKE product requires factory service, you may contact LAKE’s service department for return instructions and a Return Authorization number. Please note for product return: 1. Use the original packing. 2. Include a copy of the sales receipt, your name, return address, phone and fax number, email address and description of the defect. 3. Mark the Return Authorization number on the outside of the packing.
Lake are national and/or international registered trademarks of Music Group. LM, PLM, Loudspeaker Management and Powered Loudspeaker Management are trademarks of Music Group. Dolby is a registered trademark of Dolby Laboratories. Raised Cosine Equalization, LimiterMax and Iso-Float are trademarks of Dolby Laboratories. Audinate is a registered trademark of Audinate Pty Ltd. Dante and Zen are trademarks of Audinate Pty Ltd. All other trademarks remain the property of their respective owners.
