Genelec GLM 2.0 User manual

Operating Manual
Genelec Loudspeaker Manager
GLM™ 2.0 System

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Table of Contents
Introduction .....................................................................................................................................4
Glossary .........................................................................................................................................5
System Components....................................................................................................................... 6
SAM Monitors..............................................................................................................................6
SAM Subwoofers.........................................................................................................................6
Genelec Network Adapter ...........................................................................................................6
Genelec Loudspeaker Manager Software....................................................................................6
Getting Started................................................................................................................................7
Placing SAM monitors and subwoofers in the monitoring room ................................................... 7
Cabling for Audio Signals ............................................................................................................8
Analog Stereo Example ...........................................................................................................8
Analog Stereo with a Subwoofer Example ...............................................................................8
Analog 5.1 Surround Example .................................................................................................9
Digital Audio, Stereo with a Subwoofer Example ................................................................... 10
Digital Audio 5.1 with 7200 Series Subwoofer Example ......................................................... 10
Digital Audio, Stereo with a SE7261 Subwoofer Example...................................................... 12
Digital Audio 5.1 with a SE7261 Subwoofer Example ............................................................ 13
Cabling of the Control Network..................................................................................................15
Downloading and Installing GLM Software ................................................................................ 16
Creating a System Layout and Calibrating a System................................................................. 16
Creating a SAM Monitor Layout ............................................................................................. 16
Creating a SAM Monitor Group.............................................................................................. 19
Automatic Calibration Using GLM AutoCal............................................................................. 20
Aligning Subwoofer Phase with GLM AutoPhase................................................................... 22
Basic Use of GLM .........................................................................................................................23
Group Tabs ...............................................................................................................................24
System Level Control ................................................................................................................ 24
Mute, Dim, Preset Level, and Bass Management Bypass Buttons ............................................ 24
Advanced Use of GLM..................................................................................................................25
Maximum Number of Groups..................................................................................................... 25
Creating a New System Setup File ............................................................................................ 25
Solo and Mute Pop-Up Window Controls................................................................................... 25
Bass Management Bypass Button............................................................................................. 25
Menu Commands ......................................................................................................................25
Displaying monitor and subwoofer data in GLM......................................................................... 27
Bypass AutoCal Button.............................................................................................................. 28
GLM Info Panel .........................................................................................................................28
Access to Monitor and Subwoofer Settings ............................................................................... 28
Access to GLM Adapter Information .......................................................................................... 29
Rerunning AutoCal Automatic Calibration.................................................................................. 29
Group Settings, Advanced Use ................................................................................................. 29

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Access to group settings........................................................................................................30
AES/EBU subframe A and B selections ................................................................................. 31
Group setting specific to a single monitor (83xx Series)......................................................... 32
Group setting specific to a single subwoofer (73xx Series) .................................................... 33
Group setting specific in subwoofers having only digital inputs (72xx Series) ........................ 34
Group setting specific to a single SE monitor (8130).............................................................. 36
Group setting specific in SE7261 having only digital inputs.................................................... 37
Using Bass Management Filter Settings ................................................................................ 39
Advanced use of AutoCal ..........................................................................................................39
MultiPoint calibration..............................................................................................................39
Reviewing the AutoCal result ................................................................................................. 40
Advanced use of AutoPhase ..................................................................................................... 41
Acoustical reasons for selecting the crossover frequency ...................................................... 41
The steps to run AutoPhase...................................................................................................41
Editing Acoustic Calibrations......................................................................................................... 42
Acoustic Editors.........................................................................................................................42
Descriptions of the Acoustical Settings...................................................................................... 43
Level and time-of-flight correction Controls in Monitors and Subwoofer ................................. 43
Room Response Equalizer Controls ...................................................................................... 44
Sound Character Profiler tool .................................................................................................... 45
Stand-Alone Operation .................................................................................................................46
Storing values permanently in monitors and subwoofers ........................................................... 46
Level Control with GLM Volume Controller ................................................................................ 46
Connecting the GLM Volume Controller .................................................................................... 47
Using a USB power supply ........................................................................................................47
Wireless Volume Controller .......................................................................................................47
Additional Information ...................................................................................................................49
GLM display indications summary ............................................................................................. 49
Monitor and subwoofer LED light indications summary.............................................................. 50
GLM Diagnose View..................................................................................................................50
Griffin Powermate USB Controller ............................................................................................. 51
Frequently Asked Questions .........................................................................................................52
Why do ID tones vary in different system configurations?.......................................................... 52
How to duplicate a Group? ........................................................................................................ 52
How to compare a calibrated and uncalibrated SAM system? ................................................... 52
How to calibrate SAM systems for different listening positions? ................................................ 52
Can analog and digital signal sources be mixed? ...................................................................... 53
How to switch between analog and digital signal? ..................................................................... 53
What does ISS mean?...............................................................................................................53
Why are my 8250 monitors not going to ISS state? ................................................................... 54
What is the “Not used in this setup” bin in the Layout page? ..................................................... 54

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Introduction
Congratulations and thank you for purchasing Genelec Smart Active Monitoring (SAMTM) systems.
Take a moment to familiarize yourself with the contents of this manual. While the use of the
products is intuitive, there are many options and suggestions in this manual with regards to
different types of installations and applications.
For support contact your local dealer or [email protected]

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Glossary
Abbreviation or term Explanation
12xx Family of large three-way SAM monitors
72xx Family of digital audio input SAM subwoofers
73xx Family of analog and digital input SAM subwoofers
82xx Family of two-way and three-way SAM monitors
83xx Family of two-way and three-way SAM monitors with extended room
compensation capability
Adapter (8300-416) Genelec Network Adapter.
GLM adapter is the device that connects the GLM network to the computer USB
port and acts as the stand alone master and measurement microphone interface
Analog IN XLR analog line input
Analog OUT XLR analog line output
AutoCal Genelec automatic room response calibration method
AutoPhase Genelec automatic phase calibration method
Digital IN AES/EBU digital audio input on XLR
Digital OUT AES/EBU digital audio output on XLR
GLM Genelec Loudspeaker Manager.
Software for setup, automatic calibration, and management of a monitoring
system.
GLM Network Genelec’s proprietary monitoring system control network enabling automatic
system setup, calibration, and control
Layout grid A grid on the GLM 2.0 user interface where monitor and subwoofer icons are
placed; automatically creates friendly names and assigns digital audio subframe
settings
Group Collection of monitors and subwoofers playing at one time; each group has its
own settings, including AutoCal calibration
Layout Graphically shows the number of monitors/subwoofers on the GLM network and
their physical locations
SAM Smart Active Monitoring
SE7261 Genelec SAM subwoofer that acts as a centralized processing unit for 8130
digital input monitors (non-SAM monitors)
Stack Software window displaying a collection of unassigned monitors icons that are
initially on this stack from where they are moved onto the Layout Grid

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System Components
SAM Monitors
Smart active monitors (SAM) are supported on Genelec’s GLM control network. Genelec has a
very large selection of SAM monitors, ranging from compact two-ways to large three-way main
monitors.
SAM Subwoofers
Smart active subwoofers are supported Genelec’s GLM control network. Genelec has a wide
selection of subwoofers supporting multichannel analog inputs and multichannel digital audio
inputs for all monitoring applications.
Genelec Network Adapter
Genelec GLM network adapter (8300-416) connects SAM systems to the USB interface in a
computer, and operates as the interface for the measurement microphone, and as the master for
the stand-alone volume control.
Genelec Loudspeaker Manager Software
Genelec Loudspeaker Manager (GLM) software enables setup, automatic calibration, and
continuous control of all monitors and subwoofer in the control room.
Download the Genelec Loudspeaker Manager (GLM) software from Genelec website at
www.genelec.com/glm.
For more details on monitors and subwoofers installations and system setups, see the section
‘Getting Started’.

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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.
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 GLM 2.0
software.
To set up a Genelec SAM system,
•place SAM subwoofers and monitors in the monitoring room
•run audio cables to the SAM subwoofers and monitors
•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 in the GLM software
Placing SAM monitors and subwoofers in the monitoring room
Try to place monitors and subwoofers in optimum locations in relation to surfaces reflecting audio.
Aim each SAM monitor towards the listening position. This becomes your System Layout.
1. Select listening position so that distances from side walls (B) are equal.
2. Place monitors so that distances to the listening position are equal, and distances to the
monitors are equal from side walls (A).
3. Place a subwoofer at the front wall and a slightly left or right from the room centre axis.
4. Aim monitors towards the listening position.
Figure 1. Place monitors symmetrically relative to the walls. Point the acoustical axes towards the
listening position.

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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
first. The subwoofer has output connectors to facilitate onward connection to the monitor.
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 2.0 allows Group configuration to be either
analog or digital. Note that the 8320 features analog input only.
The most common audio cablings are introduced next.
Analog Stereo Example
Before cabling, turn off the power in all monitors.
•connect audio cables from the audio source to the monitor ANALOG IN
Figure 2. Analog stereo cabling.
Analog Stereo with a Subwoofer Example
Before cabling, turn off the power in all monitors and subwoofers.
•connect an audio cable from the source to the subwoofer connector ANALOG IN 1. This
can be the Left channel, for example.
•connect a cable from subwoofer ANALOG OUT 1 to left monitor ANALOG IN.
•connect (Right) audio cable from audio source to subwoofer ANALOG IN 2.
•connect (Right) audio cable from Subwoofer ANALOG OUT 2 to right monitor ANALOG IN

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Figure 3. Analog stereo cabling with a subwoofer
Analog 5.1 Surround Example
Before cabling, turn off the power in all monitors and subwoofers.
•connect an audio cable from the audio source to the subwoofer ANALOG IN 1
•continue from the subwoofer ANALOG OUT 1 to the monitor ANALOG IN
•continue connecting all remaining audio input cables to the subwoofer inputs ANALOG IN 2
through to ANALOG IN 5, and from the respective analog outputs to the relevant monitors
•finally, connect the LFE channel from the audio source to the subwoofer LFE IN
Figure 4. An example of analog 5.1 system cabling

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Digital Audio, Stereo with a Subwoofer Example
Before cabling, turn off the power in all monitors and subwoofers. An example of the audio cabling
for AES/EBU digital audio is shown in Figure 5.
Connect the following XLR digital audio cables:
•from the AES/EBU output of the audio source to the subwoofer DIGITAL IN input connector
•from the subwoofer DIGITAL OUT to the right monitor DIGITAL IN
•from the right monitor DIGITAL OUT to left monitor DIGITAL IN
Figure 5. An example of an AES/EBU digital audio stereo cabling
Digital Audio 5.1 with 7200 Series Subwoofer Example
Before cabling, turn off the power in all monitors and subwoofers. An example of the audio cabling
for AES/EBU digital audio is shown in Figure 6. Any cable carrying the LFE channel can only be
connected to the subwoofer input 4.
Connect the following XLR digital audio cables:
Left/Right channel pair
•from the AES/EBU output of the audio source to the subwoofer DIGITAL INPUT1 connector
•from the subwoofer DIGITAL OUTPUT1 to the right monitor DIGITAL IN
•from the right monitor DIGITAL OUT to left monitor DIGITAL IN
Surround Left/Right channel pair
•from the AES/EBU output of the audio source to the subwoofer DIGITAL INPUT2 connector
•from the subwoofer DIGITAL OUTPUT2 to the surround right monitor DIGITAL IN

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•from the surround right monitor DIGITAL OUT to surround left monitor DIGITAL IN
Center/LFE channel pair
•from the AES/EBU output of the audio source to the subwoofer DIGITAL INPUT4 connector
•from the subwoofer DIGITAL OUTPUT4 to the center monitor DIGITAL IN
Figure 6. An example of an AES/EBU digital audio surround cabling with 7200 Series subwoofer

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Digital Audio, Stereo with a SE7261 Subwoofer Example
Before cabling, turn off the power in all monitors and subwoofers. An example of the audio cabling
for AES/EBU digital audio is shown in Figure 7. Note that the AES/EBU digital audio channels
reproduced have to be selected on each monitor. The figure below also shows the dip switches
position for the required A or B channel selection.
Connect the following XLR digital audio cables:
•from the AES/EBU output of the audio source to the subwoofer DIGITAL INPUT1 input
connector
•from the subwoofer DIGITAL OUTPUT to the right monitor DIGITAL IN
•from the right monitor DIGITAL OUT to left monitor DIGITAL IN
Select the following digital audio channels for the monitor:
•on the left monitor turn ON digital audio channel A
•on the right monitor turn ON digital audio channel B
Figure 7. An example of an AES/EBU digital audio stereo cabling with SE7261 and digital channel
selections for each monitor.

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Digital Audio 5.1 with a SE7261 Subwoofer Example
Before cabling, turn off the power in all monitors and subwoofers. An example of the audio cabling
for AES/EBU digital audio is shown in Figure 8.
Connect the following XLR digital audio cables:
Left/Right channel pair
•from the AES/EBU output of the audio source to the subwoofer DIGITAL INPUT1 connector
•from the subwoofer DIGITAL OUTPUT1 to the right monitor DIGITAL IN
•from the right monitor DIGITAL OUT to left monitor DIGITAL IN
Surround Left/Right channel pair
•from the AES/EBU output of the audio source to the subwoofer DIGITAL INPUT2 connector
•from the subwoofer DIGITAL OUTPUT2 to the surround right monitor DIGITAL IN
•from the surround right monitor DIGITAL OUT to surround left monitor DIGITAL IN
Center/LFE channel pair
•from the AES/EBU output of the audio source to the subwoofer DIGITAL INPUT4 connector
•from the subwoofer DIGITAL OUTPUT4 to the center monitor DIGITAL IN
Select the following digital audio channels for the monitor
•on the left monitor turn ON digital audio channel A
•on the right monitor turn ON digital audio channel B
•on the surround left monitor turn ON digital audio channel A
•on the surround right monitor turn ON digital audio channel B
•on the center monitor turn ON digital audio channel A

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Figure 8. An example of an AES/EBU digital audio surround cabling with SE7261 and digital
channel selections for each monitor.

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Cabling of the Control Network
The GLM control network cabling is very easy. Connect the computer USB port to the GLM
adapter. Connect the GLM adapter to all SAM monitors and subwoofers in daisy-chain fashion
(Figure 9) using the GLM network cables supplied with each monitor and subwoofer. You can
connect in any order. Just be sure to connect all monitors and subwoofers.
Table 1. Connections on the GLM adapter (from left to right)
Connector Use
USB (type B) Connects the GLM adapter to a computer USB interface or USB power
supply (stand-alone volume control)
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 9. Connections of GLM control network, measurement microphone, and computer
GLM adapter
computer
GLM microphone
subwoofers
monitors
to other
monitors and
subwoofers

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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 sufficient 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.
Figure 10. GLM software download
Creating a System Layout and Calibrating a System
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. define one or more SAM monitoring groups
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)
Creating a SAM Monitor Layout
To create a layout all monitors and subwoofer must be powered and GLM network connections be
made.
A layout defines your monitors and their locations in the room. An example in Figure 13 shows a
stereo system with a subwoofer. On the left you see the GLM layout definition page and on the
right you see the actual monitoring system in the room.
A new system layout is created when the GLM user interface starts the first 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 and subwoofers are stacked on the
left side of the page.

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Figure 11. Drag and drop the monitor icons onto the layout grid to build a system layout
Use your mouse to drag and drop monitors or subwoofers onto the layout. Drag a monitor or
subwoofer icon from the stack to the layout grid on the right and drop it to the position that matches
its position in the room. Continue this until the stack is empty.
Note: monitors and subwoofers are automatically named by the location information, e.g. when the
monitor is dropped on the left side, it is named as ‘Left 8330A’. If a monitor has AES/EBU digital
input it will also get a default AES/EBU subframe to be reproduced in the digital group, e.g. when
the monitor is dropped to the left side, it gets subframe A selected as default.
Figure 12. An example of an empty monitor stack
When you drag, the real monitor plays an identification tone and flashes the front panel LED. The
identification tones depend on the SAM product type and the tones can vary between products in
the same setup.
After all monitors and subwoofer have been moved to the layout, click on the ‘Confirm Layout’ to
save the setup, and give it a name. This saves the setup on the computer hard drive.

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Figure 13. The steps of creating a SAM system layout
The additional display box ‘Not used in this setup’is primarily used with Small Environment (SE)
systems (SE7261). It defines the number of unused 8130s with the SE7261 subwoofer.
For example, the SE7261 can support up to 8 x 8130s and the system setup starts with 8 SE
channels on the Stack. They are labeled 1A, 1B all the way through 4B. However, if your SE
system only has 2 channels being used in input/outputs 1 for stereo (1A and 1 B), you would take
the next 6 (2A thru 4B) off the Stack and place them into the “Not used in this setup” bin.
Note: any SAM monitor that is placed into the “Not used in this setup” bin (Figure 14) cannot be
used as part of the current Setup and in creating other Groups. You will need to create a new
Setup using the File/New syntax in order to use them.
Figure 14. Location of the 'Not used in this setup' bin.

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Creating a SAM Monitor Group
A SAM monitoring group is a set of monitors and subwoofers that reproduce audio together. A
group contains settings that can optimize every monitors and subwoofers.
To define a monitoring group:
•give the group a name (1) that describes it (e.g. Analog Stereo)
•select the input signal (2) for the group (Analog or AES/EBU)
•click on each monitor and subwoofer, then edit/check the setting (3) (for more information,
see the GLM Advanced Settings); the monitor with a green halo is active; monitors with
yellow halo are not part of the group
•confirm the group settings by clicking on the ‘Confirm Group’ button (4)
For more detailed information on using and setting up Groups, see the section ‘GLM Advanced
Use’.
Figure 15. Group definition window; the monitors with a green halo is active; monitors with a yellow
halo are not part of the active group

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Automatic Calibration Using GLM AutoCal
GLM AutoCal is a powerful monitoring system calibration algorithm running inside the GLM
software. Sweeps are generated by each monitor in a group. Responses are recorded with the
GLM measurement microphone into your computer.
The computer analyzes the sweeps and calculates the frequency responses for all monitors and
subwoofers, then optimizes level and delay to compensate for differences between monitors, and
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 2.0.
Each setup file can contain several monitoring group definitions 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 defining each location as a new group. For example, one group
can be ‘Engineer Position’ and another ‘Producer Position’. Each can have its own calibration.
Then, selecting the group in the GLM 2.0 software quickly loads all acoustic settings specific for
each microphone position.
To calibrate a monitoring group
•connect the measurement microphone to the GLM network adapter
•enter the serial number of the measurement microphone (each specific measurement
microphone calibration file is stored in the software)
•select either a single location measurement (SinglePoint) or measurements of multiple
listening positions (MultiPoint)
•specify whether a pair of stereo front monitors should receive different calibration filters
(tickbox ‘unselected’ – example: useful for unsymmetrical setups where one monitor is in a
corner and the other free-standing), or if the same calibration filters should be applied to
both monitors (tickbox ‘selected’)
•place the microphone at the listening position, at ear height
•double-click on the measurement microphone icon to start the measurement
•wait while AutoCal measures all monitors and subwoofers and then optimizes each monitor
and subwoofer
•click ‘Confirm Calibration’ to accept and save the settings
•if there is a subwoofer in the group, the next step of the process is the automatic
adjustment of the phase (AutoPhase)
See section Advanced use of AutoCal for more detailed information on the calibration process.