Genelec GLM 4 Quick Setup Guide

GLM 4
Quick Setup Guide
Table of contents
1 Registering Your Product 3 2 Package Contents 3 3 Getting Started 3
3.1 Placing Monitors in the Monitoring Room 5
3.2 Cabling for Audio Signals 5
3.3 Analog Stereo with a Subwoofer 6
3.4 Cabling of the Control Network 6
3.5 Downloading and Installing GLM Software 8
3.6 Creating System Layout and Calibrating 8
3.7 Creating SAM Monitor Layout 9
3.8 Creating Group Preset 10
3.9 Automatic Calibration 12
3.10 Aligning Subwoofer Phase 14
3.11 Woofer System Calibration 15
3.12 Basic Use of GLM 17 4 Advanced Use of GLM 18
4.1 Importing GLM3 Setup 18
4.2 Standard Loudness SPL Calibration 20
4.3 Sound Character Proler Tool 21
4.4 Storing Values in Monitors and Subwoofers 21
4.5 Status Indicators 24
4.6 Cloud Account 25 5 More Detailed Information 25 6 Safety Considerations 26
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1 REGISTERING YOUR PRODUCT
Please register your Genelec products and learn more about your warranty. By joining the Genelec Community, you’ll be able to use all GLM Cloud features, ask ques­tions, share experiences and participate in discussions with Genelec users globally.
Register at www.community.genelec.com.
More information about service and technical support is available at www.genelec.com/customer-service.
2 PACKAGE CONTENTS
GLM Adapter
Microphone
Microphone holder
USB cable to computer connection
3 GETTING STARTED
To take full advantage of your Smart Active Monitoring (SAM) system it is important to become familiar with all the components in the system. More detailed informa­tion can be found from the GLM 4, monitor and sub­woofer operation manuals.
To set up a monitoring system you will need monitors and subwoofers, audio signal cables, GLM control network cables, GLM network adapter, GLM measure­ment microphone, and computer with GLM 4 software.
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L R
A
B B
A
Figure 1. Place monitors symmetrically relative to the walls. Point the acoustical axes towards the listening position.
To set up a Genelec SAM system
• Check the dip switches of the SAM subwoofers and monitors. The ‘Stored’ switch need to be turned ON if storing the settings to the SAM subwoofers and monitors for standalone use. Other controls are not active when using the stored settings.
• Place SAM subwoofers and monitors in the moni- toring room.
• Run audio cables to the SAM subwoofers and monitors.
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• Run GLM network cables from the GLM adapter to all SAM subwoofers and monitors.
• Download and install the GLM computer software.
• Create a system setup within the GLM software.
3.1 PLACING MONITORS IN THE MONITORING ROOM
Try to place monitors and subwoofers in optimum loca­tions in relation to surfaces reecting audio, see Figure 1. Aim each SAM monitor towards the listening position. This becomes your System Layout. More info about the correct monitor placement is available at www.genelec.
com/monitor-placement
1. Select listening position so that distances from side
walls (B) are equal.
2. Place monitors so that distances to the listening posi­ tion are equal, and distances to the monitors are equal from side walls (A).
3. Place any subwoofers at the front wall, and slightly left or right from the room centre axis.
4. Aim monitors towards the listening position.
3.2 CABLING FOR AUDIO SIGNALS
Run all audio cables from the audio source to the monitors. When a subwoofer is used, run the same signal to the monitor and the subwoofer. We recom­mend running the signal to the subwoofer rst. The subwoofer has output connectors to facilitate onward connection to the monitors.
Those audio channels that are not going to be bass managed can be run directly to the monitors and do not need to run to the subwoofer. Bass management means using a subwoofer to reproduce the low frequencies for any or all channels.
When you need both analog and digital audio cabling, it is possible to populate both analog and digital inputs and outputs on SAM products. GLM allows Group conguration to be either analog or digital. Note that the 8320 features an analog input only.
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3.3 ANALOG STEREO WITH A SUBWOOFER
Before cabling, turn off the power in all monitors and subwoofers.
• Connect (Left) audio cable from the source to the subwoofer connector ANALOG IN 1.
• Connect a cable from subwoofer ANALOG OUT 1 to left monitor ANALOG IN.
• Connect (Right) audio cable from the source to subwoofer ANALOG IN 2.
• Connect (Right) audio cable from Subwoofer ANALOG OUT 2 to right monitor ANALOG IN.
Figure 2. Analog stereo cabling with a subwoofer.
3.4 CABLING OF THE CONTROL NETWORK
The GLM control network cabling is very easy. Connect the GLM adapter to the computer USB port using the supplied USB cable. Connect the GLM adapter to all SAM monitors and subwoofers in daisy-chain fashion (Figure 3) using the network cables supplied with each monitor and subwoofer. You can connect in any order. Just be sure to connect all monitors and subwoofers.
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Table 1. Connections on GLM adapter (from left to right).
CONNECTOR USE
USB (type B) Connection for a USB cable on your computer. For stand-alone opera- tion, connection from a USB power supply.
Volume (3.5 mm jack) Connection for Genelec volume controller
Microphone (3.5 mm jack) Connection for Genelec calibration microphone
GLM Net (RJ45) GLM control network connection
Terminator (RJ45) Return termination for the GLM control network from the last monitor, in case of network cabling being greater than 100 meters
Figure 3. Connections of GLM control network, measurement microphone, and computer.
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3.5 DOWNLOADING AND INSTALLING GLM SOFTWARE
The GLM software calibrates and controls Genelec SAM systems. The software can be downloaded at
www.genelec.com/glm.
You must have sufcient rights to install the software in your computer. Install the software following the instruction given by the software during the installation process. We recommend you install the software on the local hard drive. There is no need to make any special destination folders, GLM creates these automatically.
www.genelec.com/glm
Figure 4. GLM software download
3.6 CREATING SYSTEM LAYOUT AND CALIBRATING
Before launching the GLM software after installation, stop or mute the audio source, ensure that all monitors and subwoofers are connected to the GLM network and are powered on.
The steps to create a GLM System Setup with a system layout and calibration are
1. Create a SAM monitoring system layout.
2. Dene SAM monitoring group preset.
3. Run GLM AutoCal automatic calibration.
4. Run GLM AutoPhase automatic phase calibration for
subwoofers (AutoPhase is only available when a subwoofer is included in a group).
5. Run GLM WooferCal automatic calibration for woofer
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system (WooferCal is only available when an adaptive woofer system is included in a group).
For additional groups, repeat steps 2 - 5.
3.7 CREATING SAM MONITOR LAYOUT
To create a layout all monitors, subwoofers and woofer systems must be powered and GLM network connec­tions must be made.
A layout denes your monitors and their locations in the room. Place Left and Right monitor pairs symmetrically to the grid to be able to use the automatic symmetrical room response calibration. Figure 5 shows a stereo system with a subwoofer.
A new system layout is created when the GLM user interface starts the rst time. You can always create a new layout by selecting the ‘File | New’ menu item.
When the creation of a new layout starts, initially all monitors, subwoofers and woofer systems are stacked on the left side of the page.
1. The layout style selection – shows example positions for each system (example positions can be skipped e.g. subwoofer can be placed between Left and Right monitors).
2. The devices – the UnPlaced device cell on the right and the Not Used device cell on the left. Start to drag the device icon from the UnPlaced device cell and the device will play the ID tone. Place the device icon to the Layout grid (3) to the position that matches its placement in your monitoring system layout.
3. The Not Used device cell. This will be used e.g. with the SE System where GLM needs to know the unused channels.
4. The layout grid – the monitoring system layout style with the Stereo with subwoofer system. The center cell is the listening position (will be placed with the VOG monitor in an Auro3D system). The top cells of the grid are the front monitors and the bottom cells are the rear monitors.
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5. The monitor already placed to the layout grid.
6. The layout conrmation button – Click to proceed
after the layout matches the actual monitoring system layout.
7. The setup process indicator – AutoPhase will be skipped if there is no any subwoofers in use and WooferCal will be skipped if there is no any Woofer systems in use.
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Figure 5. Drag and drop the monitor icons onto the layout grid to build a system layout.
3.8 CREATING GROUP PRESET
A group preset is a set of monitors and subwoofers that reproduce audio together. A group preset contains input and acoustic settings to optimize all monitors and subwoofers active within the group. More group presets can be created to fullll any need e.g. calibrate system to the another listening position.
To dene a monitoring group:
1. Give the group a name that describes it (e.g. Analog Stereo).
2. Optionally you can set the System delay. It will be applied to all monitors and subwoofers in the group.
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3. Select and check the bass management crossover frequency required. This setting can be a global if all monitors are to follow the crossover selected. If the setting is an individual, then crossover selections will be done individually for each monitors via a settings popup.
4. Select the Input mode (Digital channel can be changed from the Settings popup by clicking a monitor icon).
5. Settings popup will appear when the monitor icon is clicked.
6. Name the monitor.
7. Make a monitor active or inactive within the group
(inactive monitors are indicated by a light gray colour).
8. Select an input.
9. Select active monitors. A light icon indicates inactive
monitors within the group state (these will be hidden in other pages). A normal icon indicates active monitors within the group state.
Conrm the group settings by clicking on the
10.
‘Conrm Group’ button.
For more detailed information on using and setting up Groups, see the section ‘GLM Advanced Use’.
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Figure 6. Steps to create a group setting.
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3.9 AUTOMATIC CALIBRATION
GLM AutoCal is a powerful monitoring system calibration algorithm running in the Genelec Cloud. Sweeps are generated by each monitor in a group. Responses are recorded with the GLM measurement microphone into your computer.
NOTE: Adaptive Woofer Systems will be calibrated in the WooferCal page after the AutoCal and AutoPhase stages.
The algorithm analyzes the sweeps and calculates the frequency responses for all monitors and subwoofers, then optimizes level and delay to compensate for differences between monitors. It also sets equalization for the individual room responses to remove colorations caused by the room and the location where the monitors have been installed. The end result is to have sound from all monitors arriving at the listening position at the same time, same level, and compensated for the effects of the room acoustics, resulting in very accurate imaging and reliable monitoring.
Each monitor group has its own acoustic settings. This is one of the important features of GLM.
Each setup le can contain several monitoring group preset denitions each with different AutoCal calibration settings.
Even with the same set of monitors you can determine several listening positions by applying calibration in several locations and dening each location as a new group preset. For example, one group can be ‘Engineer Position’ and another ‘Producer Position’. Each can have its own calibration. Then, by selecting the group in the GLM software, it quickly loads all acoustic settings specic for each microphone position.
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To calibrate a monitoring group
1. Check the serial number of the measurement micro-
phone (measurement microphone calibration le is retrieved during rst calibration)
2. Select the calibration mode; either a single location measurement (SinglePoint) or measurements of multiple measurement positions (MultiPoint). Select the Symmetrical EQ if a Left/Right pair of monitors should receive the same calibration lters. The Individual EQ would be useful for unsymmetrical setups where one monitor is in a corner and the other free-standing. In order for the symmetric lters func tion to be used, monitors need to be symmetrical on the grid. Monitor pairs not positioned symmetrically on the grid will be handled as individual units.
3. Connect the measurement microphone to the GLM network adapter, place the microphone at the listen ing position, at ear height, and click on the ‘Start Calibration’ button to start the measurement and follow the dialog instructions.
- All monitors and subwoofers will be measured, and if MultiPoint is selected then next position(s) will be measured.
- Optimization starts.
- Wait until optimization nishes.
- The calibration results can be viewed by clicking any loudspeaker icon.
4. Click ‘Conrm Calibration’ button to accept and save the settings to the setup le.
If there is a subwoofer in the group, the next step of the process is the automatic adjustment of the phase (AutoPhase).
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Figure 7. Steps in running the AutoCal automatic system calibration process.
3.10 ALIGNING SUBWOOFER PHASE The purpose of GLM AutoPhase is to set the subwoofer phase at the crossover frequency, in relation to a selected monitor, so that the combined response of the subwoofer­monitor system is at across the crossover region. The steps to run AutoPhase automatic subwoofer phase calibration include:
1. Dene the monitor to be aligned with the subwoofer by single clicking on the subwoofer icon rst and then the monitor icon; this is done for each sub- woofer in the group; if there are several subwoofers in the group, associate every subwoofer with a moni­ tor before proceeding to the AutoPhase calibration. The ‘Pair’ text with number will show the paired sub woofer and monitor.
2. Connect the calibration microphone to the GLM adapter, place the microphone at the listening position, at ear height, and start the AutoPhase measurement process by clicking on the ‘Start Calibration’ button. Wait until the AutoPhase calibration is completed.
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3. Click the ‘Conrm Calibration’ button to accept and save the calibration to the setup le. If there are several subwoofers in the group, the AutoPhase will move to the next subwoofer automatically.
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Figure 8. Steps in running the AutoPhase automatic phase calibration process.
3.11 WOOFER SYSTEM CALIBRATION For a system containing Adaptive Woofer Systems, the rst part of the calibration (calibrating the main monitor) is the same as that shown in the Automatic Calibration section (3.9). Once that process has nished (providing woofer systems are active in the group), you will be directed to the woofer system calibration page.
1. The rst step is to pair the monitors to the respective woofer systems. This is done by rst single-clicking on the woofer system and then single-clicking on the monitor it should be paired with. This process is repeated for all woofer system + monitor pairs in the Group. Once paired, the pairing will continue to other Groups.
2. Firstly, the calibration mode is selected by using the drop-down menu – selecting between Complementary,
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Continued directivity, or one of the three directivity null modes. Each calibration mode or setting will require an individual group to be created.
3. The parameters for setting the search limits for the crossover to the main monitor should then be set. These controls are available for all modes except the Continued directivity mode, where the crossover value is xed based on the main monitor connected in the pairing. This crossover has been set to where the main monitor and woofer system have the closest matched directivity.
4. Connect the measurement microphone to the GLM network adapter, place the microphone at the listening position, at ear height, and Click on the ‘Start Calibration’ button to start the measurement and follow the dialog instructions.
• All Adaptive Woofer Systems and monitors will be measured.
• Optimization starts.
• Wait until optimization nished.
• The calibration results can be viewed by clicking any loudspeaker icon.
5. Click ‘Conrm Calibration’ button to accept and save the calibration to the setup le.
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Figure 9. Adaptive woofer system calibration.
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3.12 BASIC USE OF GLM
1. System level.
2. Selection and activation of group presets.
3. Mute, mute all.
4. Dim (-20dB).
5. Standard loudness SPL level (calibration from ‘Group
Preset : Standard Loudness SPL Calibration’ menu).
6. Level preset selections (to set adjust the system level at desired level and click ‘Group Preset : Set Preset Levels : Set Current Level to Preset1).
7. Bypass BM, will bypass the Bass Management crossover lter. Subwoofers will mute and monitors will play in the full band.
8. The GLM AutoCal status is indicated on the ‘Cali­ brated’ button. This button also allows temporary disabling or bypass of the system acoustic cali­ bration settings, by pressing the ‘Calibrated’ button.
9. Loudspeaker click mode. Select what happens when the loudspeaker icon (10) is clicked in the main page. Solo – Clicked loudspeaker will be soloed and others will be muted. Clicking a muted loudspeaker, it will be also soloed. Clicking a loudspeaker icon multiple times will toggle its state. To clear solo state, click the empty cell or use right click and select ‘Play all’.
- Mute – Clicked loudspeaker will be muted.
- Info – Clicked loudspeaker information popup will be shown.
- Edit – Clicked loudspeaker acoustic editor will be shown. The microphone SPL level, shown if the microphone
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is connected.
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The SAM subwoofer and monitor icon. Use the loudspeaker click mode (8) to select what happens when a loudspeaker is clicked.
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Click the ‘Play All’ button to turn off all solo and mute states.
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The currently loaded system setup le and network status.
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Figure 10. GLM software main page.
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4 ADVANCED USE OF GLM
GLM is the most powerful tool available to calibrate and control a Genelec SAM monitoring system. This section introduces the advanced use of the GLM
4.1 IMPORTING GLM3 SETUP
GLM3 Setup le can be imported to GLM4. Import func­tion will import selected GLM3 setup le. GLM3 setup le remains untouched and can be still used with GLM3.
NOTE: GLM4 setup le cannot be opened with GLM3.
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Follow these steps:
1. Open GLM4 main page (at least one setup with GLM4 must be created)
2. Click ‘File : Import GLM3 Setup…’ menu.
Figure 11. Import GLM3 Setup-menu.
3. Select a GLM3 setup le to be imported and click ‘Open’.The imported setup will be stored with the
same name to GLM4.
Figure 12. Selecting a setup to be imported from the GLM3
setup folder.
4. The GLM3 le is now imported to GLM4. Settings other than the layout are all kept the same: acoustic settings, groups etc. If there is a need to edit the layout, it can be done by clicking the ‘Setup: Edit Layout’ menu.
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4.2 STANDARD LOUDNESS SPL CALIBRATION
The Standard Loudness SPL feature allows calibration of the listening level in accordance with digital loudness standards such as ATSC A/85 and EBU R128. Calibrated listening level is important to judge speech intelligibility, spectral balance, platform compatibility etc.
The in-situ frequency response compensation and sys­tem alignment should be followed by the absolute SPL listening level calibration. Note: Digital monitor interfacing should be used to reduce uncertainty and tolerances.
• Before SPL calibration, rst perform the other cali- bration functions to compensate frequency response, time of ight, level difference between channels and sub phase. You would typically do this by creating a new “Group”, using the Add Group command; or by editing an existing “Group”, using the Edit Group command.
• If you require a frequency response other than at, for instance an HF roll-off such as x-curve, now make those adjustments. To edit all channels at once, consider using the Sound Character Proler. Per channel, select and edit individual monitors.
• SPL calibration should be the nal item: Click the ‘Group Preset : Standard SPL Calibration’ menu on the main page. The Standard Loudness SPL Calibration window opens.
Figure 13. Entering the Standard Loudness SPL Calibration page.
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• Select level calibration standard from the dropdown list.
• Place the Genelec calibration microphone at the listening position.
• Click the ‘Start Calibration’ to start the calibration process. Note that the test signal may be loud. If the background noise in the room is more than 65 dB SPL, the loudness preset cannot be calibrated. Reduce the noise and calibrate again.
Figure 14. The standard loudness SPL calibration.
• After calibration, click the ‘Conrm’ key to save the results and return to the main page.
After SPL calibration, the main page shows the preset levels in dB SPL units, and the Level Preset 1 is set at the standard level, e.g. 73 dB SPL for EBU R128. (Notice the graphical link-line between the Cal. Level and Level Preset 1 keys).
To remove the Standard SPL calibration open the calibration page and select ‘Remove Calibration’ from the Standard list and click the ‘Conrm’ button.
4.3 SOUND CHARACTER PROFILER TOOL
If you feel the overall spectral balance of your system needs adjustment, i.e. making it generally darker or
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brighter, the Sound Character Proler found in the Group Preset menu is a quick place to start. There are Proler Presets including the Manual option. Setting the Proler uses two shelving lters in all monitors in the selected Group.
The Sound Character Proler tool (SCP) can be accessed via the ‘Group Presets | Sound Character Proler’ menu.
Figure 15. Sound Character Proler tool.
4.4 STORING VALUES IN MONITORS AND SUBWOOFERS
SAM monitors and subwoofers are set up and calibrated using the GLM control network and the GLM software.
After setup, monitors, subwoofers and the GLM adapter can also operate without having a computer connected to the GLM adapter. This is called stand-alone operation.
SAM monitors and subwoofers retain their settings after storing the settings inside the monitors and subwoofers. In some models there is a ‘Stored Controls’ switch, which needs to be turned ON to make the monitor use the stored settings in stand-alone mode. The ‘Stored Controls’ switch status can be seen in the Store Groups Settings page under each monitor (N/A = monitor has no dip switch).
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Storing is done with the ‘Group Preset: Store to Loudspeakers’ menu command.
Settings that are stored; The Current Group Acoustic Settings, Startup Level, ISS Power Saving settings, LED Disable and Input Mode.
Figure 16. Store Group Settings page
ISS support is not available for the following products: 7260A, 7261A, 7270A, 7271A, 8240A,
8250A, 8260A.
LED Disable and Input Mode support are not available for the following products: 7260A,
7261A, 7270A, 7271A, 8240A, 8250A, 8260A, 8351A, 1238CF, 1237A, 1238A, 1238AC, 1238DF, 1234A, 1234AC, 1236A.
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4.5 STATUS INDICATORS
The top right corner shows the system state: ‘Status: OK’ (all devices are working normally), ‘Status: LS Ofine’ (one or more monitors in this group are not reachable by the network), ‘Status: Adapter Ofine’ (GLM Adapter is not connected to the computer).
The loudspeaker states will be indicated with the following colours (see gure below).
• The loudspeaker icon without any added colour indicates the normal state.
• The loudspeaker icon with the black background indicates the loudspeaker is ofine.
• The loudspeaker icon with the red background indicates the loudspeaker is clipping.
• The loudspeaker icon with the yellow background indicates the loudspeaker has protection ON.
• The red border of the loudspeaker cell tells that the loudspeaker is muted.
• The green border of the loudspeaker cell tells that the loudspeaker is soloed.
Figure 17. GLM status indicators.
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4.6 CLOUD ACCOUNT
GLM’s Cloud version requires the user to have an account in the Genelec Community. This can be created at www.community.genelec.com. With a valid user account, log in is then possible from the ‘User:Login’ menu.
Log in To log in to the Genelec Cloud, enter a valid user name and password on the Genelec Community page.
Figure 18. Login to Genelec Community window.
User information / Logout. To logout from the GLM Cloud, click the Logout from User menu.
5 MORE DETAILED INFORMATION
More detailed information is available on the Genelec website and in the individual GLM, monitor and subwoofer operation manuals.
Please visit the GLM product page to download the GLM Operating Manual with detailed information about GLM software www.genelec.com/glm
The SAM studio monitors and subwoofers page at
www.genelec.com/sam-studio-monitors-subwoofers
enables you to download a detailed Operating Manual for each SAM model, with measurements and detailed monitor performance specications.
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6 SAFETY CONSIDERATIONS
All SAM monitor systems have been designed in accordance with international safety standards. The following warnings and cautions must be observed to ensure safe operating conditions:
• Servicing and adjustment may only be performed by qualied service personnel.
• The monitor/subwoofer must not be opened.
• Do not expose the monitor/subwoofer to water or moisture.
• Do not place objects lled with liquid, such as vases, on the monitor/subwoofer or near it.
• The monitor/subwoofer alone can produce sound pressure levels in excess of 85 dB, which may cause permanent hearing damage.
• Free ow of air behind the monitor/subwoofer is necessary to maintain sufcient cooling. Do not obstruct the airow around the monitor/subwoofer.
• The monitor is not disconnected from the power supply unless the mains cable is removed from the monitor/ subwoofer. Powering down the monitor/subwoofer using its power switch does not disconnect power.
• Ensure that mountings to walls or ceilings for example are able to carry the full weight of the monitor/subwoofer in all circumstances, and the installations have been designed and are implemented according to the local safety regulations and follow principles of good workmanship.
• Genelec products and accessories come with instructions on the proper methods of installation and use. Please follow these instructions.
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Factory & Headquarters
Genelec Oy Olvitie 5 FI-74100 Iisalmi Finland T +358 17 83 881 genelec@genelec.com
USA
Genelec Inc. 7 Tech Circle Natick MA 01760 USA T +1 508 652 0900 genelec.usa@genelec.com
Sweden
Genelec Sweden Ellipsvägen 10A SE-141 75 Kungens Kurva Sweden T +46 8 449 5220 sweden@genelec.com
Japan Genelec Japan Inc 2-22-21 Akasaka Minato ku JP-107-0052 Tokyo Japan T +81 3 6441 0591 genelec.japan@genelec.com
China
Beijing Genelec Audio Room 101, Building B33 Universal Business Park No.10 Jiuxianqiao Road Chaoyang District Beijing 100015 China T +86 10 5823 2014 T +86 400 700 1978 genelec.china@genelec.co
www.genelec.com/glm
Genelec Document D0183R001. Copyright Genelec Oy 12.2020. All data subject to change.
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