Lake LM 26 User Manual Download

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Operation Manual

Lake

LM Series

Digital Audio Processors

Rev 1.3.5

Item: OM-LM

Operation Manual

Summary of Contents for LM 26

Page 1: ...Operation Manual Lake LM Series Digital Audio Processors Rev 1 3 5 Item OM LM Operation Manual ...

Page 2: ...hat no objects filled with liquids such as vases are placed on the equipment 18 The mains plug of the power supply cord shall remain readily operable 19 Do not connect the unit s output to any other voltage source such as battery mains source or power supply regardless of whether the unit is turned on or off 20 Do not remove the top or bottom cover Removal of the cover will expose hazardous voltag...

Page 3: ...rvice personnel Pour réduire le risque d incendie ou de choc électrique ne pas retirer les vis Aucune pièce réparable par l utilisateur Confier l entretien àpersonnel qualifié 1 6 FCC Compliance Notice Radio Interference A sample of this product has been tested and complies with the limits for the European Electro Magnetic Compatibility EMC directive This equipment has also been tested and found t...

Page 4: ...radio TV technician for help 1 7 User Responsibility 1 7 1 Mains Connection Grounding Your apparatus must be connected to a grounded socket outlet 1 7 2 Maintenance For safe and reliable operation the dust filter on the right hand side air intake should be removed and cleaned regularly to ensure maximum airflow through the device If the dust filter is not maintained there will be safety risks for ...

Page 5: ...oling 3 3 4 Operating Voltage 4 3 5 Grounding 4 4 Product Overview 5 4 1 Front Panel Overview 5 4 2 Back Panel Overview 8 5 Signal Flow and Lake Processing 11 5 1 Signal Flow 11 5 2 Level Adjustments Mute Points 12 5 3 Lake Processing and Control 13 5 4 Modules and Frames 13 5 5 Loudspeaker Processor Contour Mode Overview 14 5 6 System Equalizer Mesa Mode Overview 14 5 7 Switching between Contour ...

Page 6: ...ection 48 8 Appendix 49 8 1 Faults and Warnings Overview 49 8 2 Maintenance 50 8 3 Factory Default Settings 50 8 4 Glossary of Terms Acronyms and Abbreviations 51 9 Application Guide 54 9 1 Gain Structure 54 9 2 Gain Level Optimization 55 9 3 Digital Audio Connections 55 9 4 Digital Clock Configuration 57 9 5 Signal Processing Latency 59 10 Technical Specifications 61 11 Warranty and Support 62 11...

Page 7: ...tion The following section summarizes the benefits of each feature additional information is available in the reference manuals 2 2 1 Lake Processing and Controller LM Series devices integrate seamlessly into the Lake Processing environment and are accessible via the Lake Controller software Processing modules offer precise settings for gain delay crossover settings equalization and limiting Lake ...

Page 8: ...be distributed alongside control and analyzer data 2 3 Additional Documentation This document the Lake LM Series Operation Manual serves as the primary reference source for detailed information on the installation and operation of LM Series devices It also provides detailed information on set up and configuration using the front panel interface If you intend to use the device as part of a networke...

Page 9: ...g to facilitate shipping of the device should the need arise 3 2 Mounting Airflow for cooling the device is from side to side right side intake to left side fan Please ensure there is sufficient space on each side of the unit to allow airflow the space provided by standard rack rails should be sufficient This device has no top or bottom vents and therefore may be stacked directly on top of each ot...

Page 10: ...able with the appropriate molded plug should be used A locking IEC cable is not necessary in order to power the device although is essential if locking functionality is required Once a suitable AC power supply is connected the device can be turned on using the front panel power button When the device is turned on the power button LED changes from red Standby to green Active 3 5 Grounding Analog in...

Page 11: ...d a rotary data encoder To the right of these controls is a dynamic illuminated I O divider along with input and output mute buttons and level meters Handles Two sturdy cast aluminium handles are integrated into the front panel The handles should be used when carrying the device and when fitting into or removing from a rack Ensure that any door or removable rack front cover has sufficient depth to...

Page 12: ... menu In Menu Mode the dynamic func tion buttons enable access to various information and functionality Please refer to section 6 5 for further details 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 Dynamic Function Buttons with LED...

Page 13: ...d outputs for meter ing and mute purposes in the two different modes of configuration Contour Mode provides two Module inputs and six Module outputs Mesa Mode provides four Module inputs and four Module outputs The LED meters and mute buttons to the left of the illuminated divider relate to the Module inputs the LED meters and mute buttons to the right of the divider relate to the Module outputs T...

Page 14: ...Analog Inputs Analog inputs are provided via standard XLR3F latching connectors The inputs are electronically balanced and feature Lake Iso Float circuitry it is not recommended to use unbalanced connections The impedance is 20 kohms balanced and the inputs can accept a maximum input level of 26 dBu Please refer to section 7 1 for further information AES3 I O AES inputs and outputs are provided vi...

Page 15: ...should not be used with Dante For a technical reference of the Ethernet Port please refer to section 7 3 Additional information is also available in the Lake Network Configuration Guide The Ethernet ports automatically switch to operate at Ethernet data rates of 100 Mbps or 1000 Mbps and allow straight or crossed network cables Two LEDs above each port indicate valid network connection LINK and ne...

Page 16: ... external monitoring system Please refer to sections 6 10 4 4 and 7 4 for further details Mains Power Connector A universal power supply capable of accepting 70 265 V 50 60 Hz 25 W is built into LM Series devices The IEC power cable provided includes a locking feature via a pin on the bottom of the connector the connector can accept standard or locking IEC power cables The power supply must be con...

Page 17: ...e 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 The blue sections represent Frame data and the red sections represent Module data please refer to the Lake Controller Operation Manual for further information Important information regarding correct setting of the g...

Page 18: ...ut selection and MUTE Input Mixer Stage Router on off connection to mixer and gain settings Module Input Stage Mute N A for LM Series Mesa Mode and gain settings Module Output Stage Mute and gain settings Output Router Stage Output on off routing connections In Contour Mode a Module can be connected to Input Routers 1 4 providing all five stages of mute connec tivity functionality via the front pa...

Page 19: ...m panying CD ROM or USB key and additional documentation is available from the Start Menu after software installation Visit http lakeprocessing com to download the latest software firmware and documentation for your devices 5 4 Modules and Frames 5 4 1 Overview A Frame represents one physical Lake Processor e g LM 26 or LM 44 In Contour Mode a maximum of two Modules are contained within each Frame...

Page 20: ...ntaining 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 The relationship between inputs and outputs is defined via the Lake Controller or via the front panel I O Config Menu The Lake Processing system provides ...

Page 21: ...ion for an individual loudspeaker i e the data shown in red in the signal flow diagrams in section 5 1 A Module file may be recalled into other Lake devices It is not possible to store a Module File directly on the hardware device A System or Sub System Configuration File contains a set of Module file information in addition to Frame related information such Group data and I O configuration i e th...

Page 22: ...nd LED meters The front panel has two basic modes Meter Mode and Menu Mode Meter Mode provides the following views Home View default Input Meters View Mesa Mode only and I O Status View To navigate through these views press the METER button Please refer to section 6 8 for further information on Meter Mode Menu Mode provides various menus for viewing and editing parameters and is selected by pressi...

Page 23: ...t Panel Key Lock It is possible to lock the front panel buttons for security purposes When this function is active all front panel controls are disabled and all adjustment must be made via the network To lock controls press and hold button then simultaneously press button as shown in Figure 6 2 repeat this process to unlock Figure 6 2 Locking Unlocking Front Panel Controls A key icon will appear a...

Page 24: ...layed Please refer to section 6 9 for further information 6 5 Menu Button Menu Mode is selected by pressing the MENU button The screen displays the top level menu with various submenu options Press the button adjacent to the required submenu to select it Pressing the MENU button while in Menu Mode will display the previous menu level Menu Mode is used for processor configuration or for editing a p...

Page 25: ...e LCD All mute fault and warning states displayed on the front panel are summarized in section 8 1 Additional faults and warnings are reported in the Event Log of the Lake Controller only All faults and warnings recorded in the Event Log are listed in section 8 1 along with scenarios that may have arisen to cause them Device Fault Mute Description LCD Warning Text Event Log Warning Text LM 44 Only...

Page 26: ...minates when a selected parameter is available for adjustment Turn the encoder clockwise to increase the selected parameter or counter clockwise to decrease the value Parameters with only two states e g ON OFF are toggled by turning clockwise or counter clockwise Some parameters enable simultaneous adjustment of a combination of input and output channels To select which channels are adjusted 1 Pre...

Page 27: ...ion 5 1 for mute locations and descriptions Three types of mute are available from the front panel 1 Input Router Mutes 2 Module Input Mutes 3 Module Output Mutes In Home View default Module Input and Output Mutes are controlled via the dedicated mute buttons underneath each channel s five segment LED meter as shown in Figure 6 4 Figure 6 4 Dedicated Module Input and Output Mutes Home View In Figu...

Page 28: ... to show Input Router mutes and Input Router metering the dynamic I O divider line is not present and the buttons and meters change to represent the input router mute status and associ ated metering The number of Input Routers varies depending on the whether the frame is configured as Contour or Mesa as shown in Figure 6 6 the number and location of the Input Router channels is identified by the l...

Page 29: ...t mutes or GPIO protective mutes along with confirmation text on the LCD screen Clipping is monitored at the following positions in the signal chain Analog Inputs If the input signal exceeds either 12 dBu or 26 dBu according to analog sensitivity setting a clip indication will be given This does not apply if digital inputs are selected Module Inputs If the signal level at this point exceeds 25 dBu...

Page 30: ... shown in Figure 6 9 This view is not available in Contour Mode as Contour Mode Home View includes both input and output metering information Figure 6 9 Meter Mode Input Meters Mesa Only 6 9 3 I O Status View Pressing the METER button from Home View once in Contour Mode twice in Mesa Mode results in the I O Status View being displayed similar to that shown in Figure 6 10 There are two pages to thi...

Page 31: ...ntal bar and numeric dB and also shown on the main front panel LED meters input mute status analog headroom digital sample rate digital clock selection and digital clock locking status If an Input Router is muted the top right LED is illuminated red as shown in Figure 6 10 and the frame fault text in section A of the screen will display INPUT MUTE The fault and warning LED illuminates red or yello...

Page 32: ...may be selected for adjustment by pressing the adjacent button The selected parameter value s are highlighted and are adjustable using the rotary encoder A parameter may be adjusted simultaneously across multiple channels by selecting all values to be adjusted any current value offsets are retained Some parameters default to multiple selection with all inputs or outputs adjusted simultaneously Cha...

Page 33: ...n Groups 6 10 1 2 Menu Structure Overview From the Main Menu the following submenus are available as shown in Figure 6 11 and described in the following sections MODULE See section 6 10 2 Mixer Gain Gain Delay Polarity Limiters INPUT CONFIGURATION See section 6 10 3 Input Router AES Termination Iso Float Output Router FRAME See section 6 10 4 Frame Information Frame Reset Latency Match GPIO Config...

Page 34: ...n Edit Screen The top left button labeled PAGE toggles between the input mixer gain settings for each Module in the Frame Press any other illuminated button to select a parameter for editing then use the rotary encoder to make adjustments Multiple parameters may be selected and adjusted together 6 10 2 2 Gain MENU MODULE GAIN For frames where both Modules have four output channels or less a detail...

Page 35: ...he rotary encoder Figure 6 15 Module A B Combined Gain Summary Edit Screen On the combined module summary screen use the NAV button to navigate through the channels and the SEL button to select a parameter for editing Selected parameters are highlighted using inverse video on the value The navigation cursor is identified by a bounding box around the abbreviated channel label Multiple gain values m...

Page 36: ...imiters MENU MODULE LIMITERS LimiterMax parameters can be adjusted via this submenu By default simultaneous adjustment of most limiter parameters across all output channels is selected although channels may be adjusted individually if required Attack and Release times must be adjusted individually per channel MaxPeak Level MaxPeakLvl This sets the maximum peak signal level at the Module outputs It...

Page 37: ... RMS limiting features referred to as MaxPeak and MaxRMS respectively Full details regarding LimiterMax can be found in the Lake Controller Operation Manual 6 10 3 I O Config Submenu MENU I O CONFIG Figure 6 16 I O Config Submenu This menu provides configuration options for input and output routing along with settings for AES Termina tion and Iso Float as described in the following sections 6 10 3...

Page 38: ...priorities is fixed regardless of whether a valid signal is present With a router selected on the front panel press the middle button on the left of the LCD to activate this parameter for editing the text will be highlighted as shown in Figure 6 17 Use the illuminated rotary encoder to scroll through the following options Auto Select default Force Priority 1 Force Priority 2 Force Priority 3 Force...

Page 39: ...d is also displayed on the I O STATUS screen For fault free operation when using AES3 digital audio as an input source inputs must be correctly termi nated with the characteristic impedance of 110 ohm The Input Termination setting is determined by the method used to distribute the AES3 signals The processor at the end of a distribution line should be set to Terminated all other processors should b...

Page 40: ...setting to resolve ground loop problems when using analog inputs 6 10 3 4 Output Router MENU I O CONFIG OUTPUT RTR Figure 6 20 Output Router Configuration Screen The LM Series device provides comprehensive output routing via the front panel interface The number of channels available for the audio source and destination varies depending on whether the device has been configured in Contour or Mesa m...

Page 41: ...nnected routing point O identifies a currently unused and available routing point identifies that routing is unavailable for this routing point normally because another audio channel is already routed to the output All three states are shown in inverse video when they are selected by the cursor 6 10 4 Frame Submenu MENU FRAME Figure 6 21 Frame Menu The Frame Menu provides information and options r...

Page 42: ...the Lake Controller software Reads Auto IP for Auto Zero Conf DHCP IP for Auto DHCP and Fixed IP when a fixed IP address is used Please refer to the Lake Controller Operation Manual for details IP Mask Displays the IP address subnet mask for the selected unit and can only be changed via the Lake Controller software Please refer to the Lake Controller Operation Manual for further details MAC Displa...

Page 43: ...on Frame Preset information and IP Network configuration will be unaffected A power cycle is not required to complete this type of reset Mesa Reset A Mesa Reset will configure the Frame in Mesa System Processor Mode 4 in 4 out and will reset all settings and parameters to the original factory defined default values for that configuration Frame Preset information and IP Network configuration will b...

Page 44: ...r a transition from closed open and from open closed Acting on Transition Option Protective Mute State 1 No Action 2 Toggle State 3 Mute 4 Unmute Standby State 1 No Action 2 Toggle State 3 Standby 4 Turn On Preset Recall 1 No Action 2 Recall 99 3 Recall 100 No Action Table 6 3 GPI Options A change to the Acting on setting takes effect the next time the transition occurs For example changing a GPI ...

Page 45: ...cting on State when Closed Protective Mute State 1 Muted 2 Unmuted Standby State 1 Standby 2 On Fault 1 No Fault 2 Any Fault Ready 1 Ready 2 Not Ready No Indication Table 6 4 GPO Options Factory Reset and Soft Reset clear the protective mute state Two input options GPI and two output options GPO may be set at any one time The default GPIO con figuration is shown in Table 6 5 The current state open...

Page 46: ...Front Panel Display Controls MENU FRAME FRONT Figure 6 25 Front Panel Display Controls Menu Contrast To adjust the front panel LCD contrast select this option then use the rotary encoder to change the value Dimming To adjust the front panel LCD LED brightness select this option then use the rotary encoder to change the value 6 10 6 Frame Preset Menu MENU FRAME PRST Figure 6 26 Frame Preset Menu ...

Page 47: ...y be created in the Lake Controller and stored as a Preset using the Lake Controller or the LM Series Preset Manager Up to 100 Frame Presets can be stored in the device The data within a Frame Preset includes the configura tion of all Modules in the Frame including levels crossovers EQ input mixer and output routing As Frame Presets are stored within the device complete processor configurations ca...

Page 48: ...nnections as shown in Figure 7 1 Figure 7 1 Back Panel Interface LM 26 Figure 7 2 Back Panel Interface LM 44 7 1 Analog Inputs and Outputs 7 1 1 Analog Output XLR Connections Six LM 26 or four LM 44 electronically balanced analog outputs are provided via standard XLR3M connec tions INPUT 1 OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4 OUTPUT 5 OUTPUT 6 INPUT 2 Figure 7 3 Analog Output XLR Connections LM 26 ...

Page 49: ...XLR Connections LM 26 7 1 3 Analog XLR Wiring and Pin Out All XLR connections are wired to IEC268 as shown in Figure 7 5 Figure 7 5 IEC268 XLR Wiring and Pin Out Pin 1 Ground Shield Pin 2 Hot Pin 3 Cold 7 1 4 Unbalanced Operation Balanced connections are recommended where possible However if it is necessary to drive the device from equipment with an unbalanced output wire the inputs as shown in Fi...

Page 50: ...og Wiring and Pin Out 7 1 5 Iso Float Electronic Balancing The analog input and output electronic balancing circuits use the Lake Iso Float system The Iso Float technology combines the benefits of transformer coupled isolation with the advantages of clean direct coupled inputs and outputs The audio converters are galvanically isolated and not connected to the main ground High quality transformers ...

Page 51: ... Ch 7 8 AES4 Ch 7 8 LM 44 Only Table 7 1 DB25 Input and Outputs Figure 7 9 below provides a wiring reference for the DB25 connector Ch Ground Hot Cold 1 2 IN 10 1 14 3 4 IN 11 2 15 5 6 IN 12 3 16 7 8 IN 13 4 17 1 2 OUT 22 5 18 3 4 OUT 23 6 19 5 6 OUT 24 7 20 7 8 OUT 25 8 21 Figure 7 9 DB25 Wiring Reference Figure 7 5 on page 43 shows the only possible method of wiring there is no equivalent of an ...

Page 52: ...e made cables with moulded RJ45 plugs are recommended If it is necessary to make up custom Cat 5e network cables use pinout described in Table 7 2 Pin No Color 1 Brown 2 Brown White 3 Green 4 Blue White 5 Blue 6 Green White 7 Orange 8 Orange White Table 7 2 RJ45 Wiring Pin Out Description Figure 7 11 RJ45 Wiring and Pin Out Diagram When the device is connected to an active network the yellow LINK ...

Page 53: ...es such as fire alarm systems for emergency muting processor power control or preset recall The GPO function allows fault and state monitoring via external systems Figure 7 12 in conjunction with Table 7 3 describes the pinout configuration for the GPIO connector Figure 7 12 9 Pin GPIO Connector and Pinout Reference Pin No Description 1 GPI 1a 2 GPI 1b 3 GPI 2a 4 GPI 2b 5 Chassis Ground 6 GPO 1a 7...

Page 54: ...le of accepting 70 265 V 50 60 Hz 25 W is built into the device The IEC power cable provided includes a locking feature via a pin on the bottom of the connector the connector can accept standard or locking IEC power cables The power supply must be connected to AC mains using an IEC power cable with a correctly wired and molded plug for the country of operation ...

Page 55: ...e selected digital clock and digital input combination is not aligned Verify digital input configuration to ensure all clock settings match CTRL OFFLINE Warning The device is no longer able to communicate with the Lake Control ler Check network connectivity NAME CONFLICT Dante device name conflict Warning There are multiple devices with identical Dante device names change the device name to ensure...

Page 56: ...ary if the device has had prolonged operation in an extreme environment such as one where cracked oil smoke machines are in use If the device is used in extreme conditions it is recommended to have it serviced every three years as a preventative measure 8 3 Factory Default Settings 8 3 1 Module Defaults Module Type 2 x Classic 3 Way LM 26 or 4 x Mesa EQ LM 44 Mod Input Mute On LM 26 N A LM 44 Mod ...

Page 57: ... of the network they are connected to 10 Base T or 100 Base T and configure themselves appropriately This is termed auto sensing Auto Uplink The Ethernet ports can operate with either straight or crossed network cables This ability to connect correctly with either type is termed auto uplinking Auxiliary Output Some of the configurations possible in the Lake processing system Modules result in a si...

Page 58: ...ake devices Floating An analog balanced input or output is said to be floating when full electrical isolation exists between that input or output and the equip ment connected to it Transformer coupled inputs and outputs are inherently floating Electronically balanced inputs and outputs can never be truly floating though better designs such as that found in LM Series devices do mimic the characteri...

Page 59: ... Thus an Lake device on the network can be pinged from the Lake Controller on receipt of the ping the hi intensity white LED on the front panel illuminates Reverse pinging is also possible whereby the ping is instigated from Lake hardware device and a visual identification of the processor registers in the Lake Controller software Preset A complete frame configuration that is stored in the device ...

Page 60: ...he 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 a radio transmitter receiver for data Wireless Network An Ethernet network where some or all cabled connections are replaced by wireless links Table 8 2 Glossary ofTerms Acronyms and Abbreviations ...

Page 61: ...e Controller Please refer to the Lake Controller Operation Manual for further details 9 1 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 To adjust navigate to I O Config and tap the Input Mixer blocks for the Module in the Lake Controller Please refer to the Lake Controller Operation Manual for ...

Page 62: ...oise To help provide the best volume to noise ratio use an AES or Dante digital input signal wherever possible If using analog inputs ensure that unused or unnecessarily high headroom is not introduced at the input to the device If full or high average power is not required the Module input gain may be reduced 9 3 Digital Audio Connections Whenever possible it is preferable to connect a digital ra...

Page 63: ...ing delay referred to as latency If the processing chain does not involve analog to digital or digital to analog conversion the amount of latency is usually very small and often may be disregarded However in complex systems involving multiple digital audio components and connections enough delay may be generated to cause audio phasing problems Therefore the lowest latency is always preferred and i...

Page 64: ... 9 3 4 Additional Reference Material Complete technical information on the AES EBU AES3 standard can be downloaded from the AES web site at http www aes org publications standards 9 4 Digital Clock Configuration 9 4 1 Digital Clock Overview In order to provide a flexible and robust audio processing system the device is equipped with a configurable digital clocking system There are two separate dig...

Page 65: ...C Clock s base rate is 48 kHz then 96 and 192 kHz clocks are also derived In most typical applications SRC Clock will be set at a base rate of 44 1 kHz A base rate of 48 kHz is provided to allow for both synchronous via Primary Clock and asynchronous via SRC Clock I O All clocks derived from the Primary and SRC clocks are available to drive the AES3 audio outputs The desired sample rate can be sel...

Page 66: ...equired on a device that is already a Dante slave this secondary digital input must be locked using the SRC clock The front panel I O Status View indicates if that device is selected as Dante Clock Master Confirmation of Dante Master Slave status is also displayed in the Lake Controller The Dante Preferred Master setting can be set from the Lake Controller I O Configuration screen or via the Dante...

Page 67: ...al Latency ms LM 44 Total Latency ms Analog Analog 0 226 0236 Analog 48 kHz sync 0 373 0 373 Analog 96 kHz sync 0 158 0 158 48 kHz sync Analog 0 395 0 406 48 kHz sync 48 kHz sync 0 545 0 545 96 kHz sync Analog 0 138 0 150 96 kHz sync 96 kHz sync 0 059 0 059 Table 9 2 Latency for Common I O Configurations Pass thru ...

Page 68: ...ts 8 inputs 8 outputs Supported sample rates I O individually selectable Supported resolutions Up to 24 bit THD Noise 0 00002 at 96 kHz 0 00006 at 44 1 kHz sample rate Dynamic range Base48 140 dBFS Base44 125 dBFS Clocking Clock selection Manual or automatic according to priority scheme Oscillator type synchronization High quality VCXO clock can provide Dante master clock or slave Automatic synchr...

Page 69: ...r is not covered by the warranty Units on which the serial number has been removed or defaced will not be eligible for warranty service Lake shall not be responsible for any incidental or consequential damages Lake s responsibility is limited to the product itself Lake takes no responsibility for any loss due to cancellation of any events or rent of replacement equipment or costs due to a third pa...

Page 70: ...duct prepaid to Lake Faktorvägen 1 SE 434 37 Kungsbacka SWEDEN Phone 46 300 56 28 00 Fax 46 300 56 28 99 service lakeprocessing com www lakeprocessing com 11 4 Trademarks Lake is a national and or international registered trademark of Lab gruppen AB LM PLM Loudspeaker Management and Powered Loudspeaker Management are trademarks of Lab gruppen AB Dolby is a registered trademark of Dolby Laboratorie...

Page 71: ...A T I O N A L contact info lakeprocessing com U S C A N A D A C O N T A C T info T C G A M E R I C A S com w w w l a k e p r o c e s s i n g c o m L ake is a wholl y owned subsidiar y of L ab gruppen A B S weden www labgruppen com ...

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