The contents of this manual are furnished for informational purposes only, are subject to change without notice, and should not
be construed as a commitment by Meyer Sound Laboratories Inc. Meyer Sound assumes no responsibility or liability for any
errors or inaccuracies that may appear in this manual. Except as permitted by applicable copyright law, no part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical,
recording or otherwise, without prior written permission from Meyer Sound.
AlignALink, B-Noise, CAL, Compass Go by Meyer Sound, Compass RMS, Composite EQ, Intelligent AC, LEO-M, LEOPARD,
LYON, M Series, M1D, M2D, M3D, MAPP, MAPP XT, MatrixLink, MINA, QuietCool, TM Array, UltraSeries, LEO, LYON, are trademarks of Meyer Sound. Callisto, Compass, MAPP Online Pro, Thinking Sound, U-Shaping, REM, Galileo, M’elodie, MICA,
MILO, SIM, TruShaping, M3D, Meyer Sound, and the Meyer Sound wave logo, are registered trademarks of Meyer Sound Laboratories Inc. (Reg. U.S. Pat. & Tm. Off.). All third-party trademarks mentioned herein are the property of their respective trademark holders.
ii
Page 3
SAFETY INSTRUCTIONS FOR LOUDSPEAKERS/ELECTRONICS
!
SYMBOLS USED
These symbols indicate important safety or operating features in this booklet and on the
chassis:
Dangerous voltages: risk
of electric shock
Pour indiquer les risques
résultant de tensions
dangereuses
Zu die gefahren von
gefährliche spanning
zeigen
Para indicar voltajes
peligrosos
Important operating
instructions
Pour indequer important
instructions
Zu wichtige betriebsan-
weisung und unterh-
altsanweisung
zeigen
Instrucciones impor-
tantes de funcionamiento
y/o manteniento
Frame or chassisProtective earth ground
Masse, châssisTerre de protection
Rahmen oder chassisDie schutzerde
Armadura o chassisTierra proteccionista
iii
Page 4
SAFETY INSTRUCTIONS FOR LOUDSPEAKERS/ELECTRONICS
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with Meyer Sound’s installation instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other
apparatus that produce heat.
9. Do not defeat the safety purpose of the grounding-type plug. A grounding-type plug has
two blades and a third grounding prong. The third prong is provided for your safety. If the
provided plug does not fit into your outlet, consult an electrician for replacement of the
obsolete outlet.
10.Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. The AC mains plug
or appliance coupler shall remain readily accessible for operation.
11.Only use attachments/accessories specified by Meyer Sound.
iv
Page 5
12.Use only with the caster rails or rigging specified by Meyer Sound, or sold with the appara-
!
tus. Handles are for carrying only.
13.Unplug this apparatus during lightning storms or when unused for long periods of time.
14.Refer all servicing to qualified service personnel. Servicing is required when the apparatus
has been damaged in any way, such as when the power-supply cord or plug has been
damaged; liquid has been spilled or objects have fallen into the apparatus; rain or moisture
has entered the apparatus; the apparatus has been dropped; or when for undetermined
reasons the apparatus does not operate normally.
WARNING: To reduce the risk of fire or electric shock, do not expose this appa-
ratus to rain or moisture. Do not install the apparatus in wet or humid locations
without using weather protection equipment from Meyer Sound.
POWERCON USE CAUTION
Disconnect the mains plug before disconnecting the power cord from the device.
v
Page 6
SAFETY INSTRUCTIONS FOR LOUDSPEAKERS/ELECTRONICS
ENGLISH
To reduce the risk of electric shock, disconnect the apparatus from the AC mains before installing
audio cable. Reconnect the power cord only after making all signal connections.
Connect the apparatus to a two-pole, three-wire grounding mains receptacle. The receptacle must
be connected to a fuse or circuit breaker. Connection to any other type of receptacle poses a shock
hazard and may violate local electrical codes.
Do not install the apparatus in wet or humid locations without using weather protection equipment
from Meyer Sound.
Do not allow water or any foreign object to get inside the apparatus. Do not put objects containing
liquid on or near the unit.
To reduce the risk of overheating the apparatus, avoid exposing it to direct sunlight. Do not install the
unit near heat-emitting appliances, such as a room heater or stove.
This apparatus contains potentially hazardous voltages. Do not attempt to disassemble the unit. The
unit contains no user-serviceable parts. Repairs should be performed only by factory-trained service
personnel.
FRANÇAIS
Pour réduire le risque d’électrocution, débrancher la prise principale de l’haut-parleur, avant
d’installer le câble d’interface
allant à l’audio. Ne rebrancher le bloc d’alimentation qu’après avoir effectué toutes les connections.
Branchez l’haut-parleur dans une prise de courant à 3 dérivations (deux pôles et la terre). Cette prise
doit être munie d’une protection adéquate (fusible ou coupe-circuit). Le branchement dans tout autre
genre de prise pourrait entraîner un risque d’électrocution et peut constituer une infraction à la réglementation locale concernant les installations électriques.
Ne pas installer l’haut-parleur dans un endroit où il y a de l’eau ou une humidité excessive.
Ne pas laisser de l’eau ou tout objet pénétrer dans l’haut-parleur. Ne pas placer de r´cipients conte-
nant un liquide sur cet appareil, ni à proximité de celui-ci.
Pour éviter une surchauffe de l’hautparleur, conserver-la à l’abri du soleil. Ne pas installer à proximité
d’appareils dégageant de la chaleur tels que radiateurs ou appareils de chauffage.
Ce haut-parleur contient des circuits haute tension présentant un danger. Ne jamais essayer de le
démonter. Il n’y a aucun composant qui puisse être réparé par l’utilisateur. Toutes les réparations
doivent être effectuées par du personnel qualifié et agréé par le constructeur.
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Page 7
DEUTSCH
Um die Gefahr eines elektrischen Schlages auf ein Minimum zu reduzieren, den Lautsprecher vom
Stromnetz trennen, bevor ggf. ein Audio-Schnittstellensign alkabel angeschlossen wird. Das Netzkabel erst nach Herstellung aller Signalverbindungen wieder einstecken.
Der Lautsprecher an eine geerdete zweipolige Dreiphasen-Netzsteckdose anschließen. Die Steck-
dose muß mit einem geeigneten Abzweigschutz (Sicherung oder Leistungsschalter) verbunden sein.
Der Anschluß der unterbrechungsfreien Stromversorgung an einen anderen Steckdosentyp kann zu
Stromschlägen führen und gegen die örtlichen Vorschriften verstoßen.
Der Lautsprecher nicht an einem Ort aufstellen, an dem sie mit Wasser oder übermäßig hoher Luft-
feuchtigkeit in Berührung kommen könnte.
Darauf achten, daß weder Wasser noch Fremdkörper in das Innere den Lautsprecher eindringen.
Keine Objekte, die Flüssigkeit enthalten, auf oder neben die unterbrechungsfreie Stromversorgung
stellen.
Um ein Überhitzen dem Lautsprecher zu verhindern, das Gerät vor direkter Sonneneinstrahlung fern-
halten und nicht in der Nähe von wärmeabstrahlenden Haushaltsgeräten (z.B. Heizgerät oder Herd)
aufstellen.
Im Inneren diesem Lautsprecher herr-schen potentiell gefährliche Spannungen. Nicht versuchen, das
Gerät zu öffnen. Es enthält keine vom Benutzer reparierbaren Teile. Reparaturen dürfen nur von ausgebildetem Kundenienstpersonal durchgeführt werden.
ESPAÑOL
Para reducir el riesgo de descarga eléctrica, desconecte de la red de voltaje el altoparlante antes de
instalar el cable de señal de audio. Vuelva a conectar la alimentacion de voltaje una vez efectuadas
todas las interconexiones de señalizacion de audio.
Conecte el altoparlante a un tomacorriente bipolar y trifilar con neutro de puesta a tierra. El tomacor-
riente debe estar conectado a la protección de derivación apropiada (ya sea un fusible o un disyuntor). La conexión a cualquier otro tipo de tomacorriente puede constituir peligro de descarga
eléctrica y violar los códigos eléctricos locales.
No instale el altoparlante en lugares donde haya agua o humedad excesiva.
No deje que en el altoparlante entre agua ni ningún objeto extraño. No ponga objetos con líquidos
encima de la unidad ni cerca de ella.
Para reducir el riesgo de sobrecalentamiento, no exponga la unidad a los rayos directos del sol ni la
instale cerca de artefactos que emiten calor, como estufas o cocinas.
Este altoparlante contiene niveles de voltaje peligrosos en potencia. No intente desarmar la unidad,
pues no contiene piezas que puedan ser repardas por el usuario. Las reparaciones deben efectuarse
únicamente por parte del personal de mantenimiento capacitado en la fábrica.
Declarations of Conformity ......................................... 45
CE ...............................................................................49
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GALILEO GALAXY USER GUIDE
!
CHAPTER 1: INTRODUCTION
HOW TO USE THIS MANUAL
Make sure to read these operating instructions in their entirety before using the Galileo®
GALAXY loudspeaker management system. In particular, pay close attention to material
related to safety issues.
As you read these operating instructions, you will encounter the following icons for notes, tips,
and cautions:
NOTE: A note identifies an important or useful piece of information relating to the
topic under discussion.
TIP: A tip offers a helpful tip relevant to the topic at hand.
CAUTION: A caution gives notice that an action may have serious conse-
quences and could cause harm to equipment or personnel, or could cause
delays or other problems.
Information and specifications are subject to change. Updates and supplementary information
are available at www.meyersound.com
.
Meyer Sound Technical Support is available at:
■ Te l: +1 510 486.1166
■ Te l: +1 510 486.0657 (after hours support)
■ Web: www.meyersound.com/support
■ Email: techsupport@meyersound.com
11
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CHAPTER 1: INTRODUCTION
GALILEO GALAXY
The Galileo GALAXY Network Platform is an elegant hardware and software solution for driving and aligning Meyer Sound arrays.
The GALAXY 816 is a 2-RU device that includes:
■ 8 analog/AES3/AVB inputs
■ 16 AVB/analog outputs
■ Digital matrix processor
Galileo GALAXY 816 front and rear panels
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GALILEO GALAXY USER GUIDE
The GALAXY 408 is a 1RU device that includes:
■ 4 analog/AES3 and 8 AVB inputs
■ 8 analog and 16 AVB outputs
■ Digital matrix processor
Galileo GALAXY 408 Front and Rear Panels
Designed as the perfect complement to Meyer Sound’s M Series™ and LEO Family arrays,
the Galileo GALAXY includes the following features:
■ AVB I/O controller
■ Expanded delay integration for aligning Meyer Sound loudspeaker products
■ Delay matrix
■ Atmospheric correction filters
■ Simultaneous low- and high-pass filters
The Galileo GALAXY offers an extensive equalization architecture:
■ U-Shaping EQ (inputs and outputs): 5 bands with adjustable slopes, widths, and gain.
■ 5-band complementary phase parametric filtering on inputs
■ 10-band complementary phase parametric filtering on outputs
The Galileo GALAXY features full digital operation with fixed latency across all output channels
regardless of applied processing. To provide the highest level of audio precision and dynamic
range while minimizing latency, audio processing in the GALAXY utilizes high precision variable length integers with 64-bit resolution.
13
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CHAPTER 1: INTRODUCTION
GALILEO GALAXY 816-AES3
The GALAXY 816-AES3 model provides 16 matrix outputs on eight AES3 digital outputs. It
can be used to drive the standard GALAXY 408 and 816’s digital inputs or any other device that
accepts 96 kHz AES digital audio signals. For more information on the GALAXY 816-AES3 and
its differences from the standard GALAXY 816, see Appendix A, “Galileo GALAXY 816-AES3.”
COMPASS CONTROL SOFTWARE
The Compass control software provides comprehensive control of the Galileo GALAXY from
®
an intuitive graphical user interface on a Mac
ware lets you control all features on multiple units.
or Windows®-based computer. Compass soft-
EQ Plots in the Compass Control software
The Overview tab displays a summary of all GALAXY channels with signal flow. Inputs and
outputs can be labeled and conveniently grouped for simultaneous editing. The Input Processing and Output Processing tabs provide access to all DSP settings. Equalization parameters can be edited with numeric entry or by dragging frequency bands. Multiple EQ layers can
be viewed as a composite plot of equalization curves.
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GALILEO GALAXY USER GUIDE
SIM 3 SUPPORT
The GALAXY can be connected directly to the SIM® 3 audio analyzer, providing complete
audio measurement capabilities for complex audio systems.
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CHAPTER 1: INTRODUCTION
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GALILEO GALAXY USER GUIDE
!
CHAPTER 2: FEATURES AND FUNCTIONS
GALAXY PROJECTS AND SETTINGS
GALAXY project files are saved by the Compass control software to the host computer.
Project files contain the full configuration of parameters, system settings, and snapshots
stored in the GALAXY. When a GALAXY is connected to the host computer, the Compass
control software reads and displays the configuration currently residing in the GALAXY.
The Compass control software does not have its own memory for system settings and parameters; it just reads what it is connected to. When Compass is connected to a GALAXY, it reads
and displays the parameters and settings of a project file and the current active snapshot and
snapshot library contained in the unit’s memory. However, loading another project file (stored
on the computer) into the Compass control software when it is connected to a GALAXY
replaces the current snapshot and, if selected, the device settings currently loaded in the
GALAXY.
CAUTION: Opening a project file in the Compass control software when the
computer is connected to a GALAXY overwrites all stored snapshots and current
device settings residing in the GALAXY (if Load DeviceSettings is selected when
opening the project). To merge snapshots from another project file into the current
library of snapshots in a GALAXY, use the Merge Project option from the Project tab
(click the More>> button for this option to appear).
TIP: You can use the Compass control software to capture GALAXY settings. The
settings are saved as project files or as individual settings files on the host
computer and can be later restored back into the GALAXY. Contact Meyer Sound
Technical Support for more information or help with the Compass Control Software:
■ +1 510.486.1166 (local) or +1 855.641.3288 (toll free from US and Canada)
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CHAPTER 2: FEATURES AND FUNCTIONS
GALAXY FRONT PANEL
GALAXY front panels
The GALAXY front panel provides basic information and mute control of the loudspeaker management system. It shows Input level metering for all inputs, and status and control for all outputs.
The GALAXY front panel is divided into three sections:
■ Inputs
■ Outputs
■ Status Display
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GALILEO GALAXY USER GUIDE
Input Level
Meters
Input Mute
Buttons
Front Panel Input Section
GALAXY front panel input section
■ Input Level Meters: Four-segment LED ladders represent the level for each input channel.
The green LED range begins at approximately -80 dB below clipping. The yellow LED
range lights a few dB below clipping. The top red LED indicates clipping. In the Compass
software (Settings > Input and Output), you can set the Voltage Range for all input and
output channels to either +26 dBu (15.5 V rms) or +16 dBu (7.75 V rms), which determines
the clipping levels.
NOTE: The default Input Voltage Range is +26 dBu.
■ Input Mute Buttons: Each input channel has a mute button. Toggling an input mute button
in the Compass software also toggles this mute button.
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CHAPTER 2: FEATURES AND FUNCTIONS
Signal /
Clip LEDs
Output Mute
Buttons
Front Panel Output Section
GALAXY front panel output section
■ Signal / Clip LEDs: Output level is indicated by one multi-color LED for each output
channel. The LED turns green to indicate output levels from -85 dB to -5 dB below
clipping. The LED glows brighter as the signal level increases. The LED turns amber to
indicate levels from -5 dB to just below the clipping level. The LED turns red when the
output signal clips. In the Compass software (Settings > Input and Output), you can set
the Voltage Range for all input and output channels to either +26 dBu (15.5 V rms) or +16 dBu (7.75 V rms), which determines the clipping levels.
NOTE: The default Output Voltage Range is +26 dBu.
■ Output Mute Buttons: Each output channel has a mute button. Toggling an output mute
button in the Compass software also toggles this mute button.
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GALILEO GALAXY USER GUIDE
Front Panel
Display
Audio Clock
LED
Front Panel Display Information
AVB Sync
LED
Controller LED
SIM 3 LED
Power
LED
GALAXY front panel section
■ Front Panel Display: The front panel display provides device name, current snapshot,
device identity indicator, and other critical device notifications available on the GALAXY.
Use the Front Panel Display Control from the Compass controller software to adjust the
brightness and color.
■ Controller LED: Indicates activity when the GALAXY is connected to a computer running
the Compass control software.
■ SIM 3 LED: Indicates the GALAXY is connected to a SIM 3 audio analyzer.
NOTE: The GALAXY SIM 3 Address must be set to a number in the range 0–14
(default is 10) in the SIM 3 tab in the Compass software. It will then be available
in the Switcher section of SIM 3 under tabs 0–14, and can be configured to perform
audio measurements. The SIM 3 user interface shows Galileo 616.
■ Power LED: Lights to indicate the GALAXY DC power rail is good.
■ AVB Sync LED: Lights to indicate the GALAXY AVB Media Clock Lock is good.
■ Audio Clock LED: Lights to indicate the status of the selected media Clock (AVB, AES or
Internal) is good.
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CHAPTER 2: FEATURES AND FUNCTIONS
Analog / AES Input
Connectors
SIM 3 Bus
Connectors
PowerCon
AC Power
Connector
Output
Connectors
Analog Input
Connectors
Ethernet
Connector
Identify
Button
!
GALAXY rear panel
The GALAXY rear panel provides the following connectors:
■ PowerCon AC Power Connector: This locking connector mates with the provided AC
power cable.
CAUTION: Make sure the AC power cable has the appropriate power plug on
the other end for the area in which you will operate the GALAXY.
NOTE: The GALAXY incorporates Meyer Sound’s Intelligent AC power supply,
which automatically adjusts to any line voltage worldwide, and provides soft turn-on and transient protection.
■ Ethernet Connector: RJ-45 connector lets you attach the GALAXY to an Ethernet net-
work so it can be controlled from a computer running the Compass software. Use a Gigabit-capable Ethernet network cable.
■ Analog / AES Input Connectors (A, C, E, G): Four XLR-3F input connectors accept either
a standard line-level analog signal or an AES two-channel digital signal. In the Compass
software (Settings > Input and Output), you can set these inputs to Analog or AES3.
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GALILEO GALAXY USER GUIDE
■ Analog Input Connectors (B, D, F, H): Four XLR-3F input connectors accept standard
line-level audio only. These inputs are typically paired with their corresponding input pairs
(A, C, E, G) to receive two-channel audio signals. The analog-only inputs are disabled
when their input pair is set to AES mode (i.e., when input A is set to AES mode, input B is
disabled).
■ Analog Output Connectors (1–16): Sixteen XLR-3M connectors route audio to
Meyer Sound self-powered loudspeakers, or to amplifier channels driving passive systems.
All signal routing and processing stored in the GALAXY devices settings and saved Project
file is applied to these outputs.
NOTE: The GALAXY 816-AES3 provides 16 matrix outputs on eight AES3 digital
outputs. For more information, see Appendix A, “Galileo GALAXY 816-AES3.”
■ SIM 3 Bus Connectors: Connects to the SIM 3 audio analyzer so the GALAXY’s inputs
and outputs can be used as measurement points. A second SIM 3 bus port is provided to
loop an additional GALAXY or to a SIM-3088 line-level switcher.
■ Identify Button: Winks when the Compass control software connects to the GALAXY
device.
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CHAPTER 2: FEATURES AND FUNCTIONS
DIGITAL LATENCY
The GALAXY features fixed latency across all output channels, regardless of the processing
applied. GALAXY AES3 inputs have sample rate converters which support a wide range of
sample rates. See Table 1 below for latency based on sample rate. To provide the highest level
of audio precision and dynamic range with the lowest latency, GALAXY audio processing utilizes variable length integers with up to 64 bits of resolution.
The analog latency for GALAXY (AD/DA) is fixed at 596.8 microseconds.
Table 1: Digital Audio Latency (AES3 to analog outputs)
Sample Rate Input (kHz)Measured Latency (ms)
20.03.184
32.02.311
44.11.912
48.01.826
96.01.342
192.01.099
216.01.072
*Test conditions were factory default settings: All input and output EQ filters enabled but set to flat response, no
other filtering enabled.
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GALILEO GALAXY USER GUIDE
INPUT SAMPLE RATES
The GALAXY accepts a wide range of sample rates for both AVB and AES inputs. (see
Table 2). To use AVB inputs, you must set the System Clock to AVB.
Table 2: Accepted Input sample rates and bit depth based on format
FormatInput Sample Rates Accepted (Hz)Bit Depth
AES320,000 to 216,000up to 24 bit
AVB48,000 or 96,00024 bit
NOTE: If an AES3 input or the Word Clock input is selected as the AES output
clock source (GALAXY 816-AES3 unit only), then the following sample rates may
be used:
44.1 kHz
48.0 kHz
88.2 kHz
96.0 kHz
176.4 kHz
192.0 kHz
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CHAPTER 2: FEATURES AND FUNCTIONS
26
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GALILEO GALAXY USER GUIDE
!
!
Earth ground
Chassis ground
CHAPTER 3: CONNECTING THE GALAXY
POWER CONNECTOR
The GALAXY uses a locking PowerCon® connector to provide AC voltage to the unit. Its internal
switching power supply has a safety-agency-rated operating range of 100–264 V AC, 50/60 Hz.
Locking PowerCon connector for AC power
Electrical Safety Issues!
Pay close attention to these important electrical and safety issues:
CAUTION: The PowerCon 20 connector should not be engaged or disengaged
when under load or live.
CAUTION: GALAXY requires a grounded outlet. Always use a grounded outlet
and plug.
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CHAPTER 3: CONNECTING THE GALAXY
GALAXY
Computer or
External Controller
AVNU certified Network switch
or wireless router
Gigabit
Ethernet
cables
RJ-45
Connectors
REMOTE COMPUTER CONNECTION
The GALAXY’s RJ-45 port connects to a standard computer Ethernet port with Gigabit-capable
network cables. A Mac or Windows-based computer running the Compass software uses the
Ethernet connection to control the unit remotely. Bi-directional communication between the
GALAXY device and the Compass software allows the user to change settings on either
device and stay in sync.
GALAXY connected to computer
NOTE: Please visit meyersound.com or contact Technical Support (see page 11)
for more information regarding network connections for control and/or audio.
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GALILEO GALAXY USER GUIDE
INPUT CONNECTORS (FROM CONSOLE)
GALAXY Input Connectors
Analog Inputs
Analog source signals, including those from analog mixing consoles, are connected to the
XLR-3F connectors (labeled A – H) on the left side of the GALAXY rear panel. These eight
balanced analog inputs feed state-of-the-art A/D converters (24-bit, 96 kHz sample rate). The
Input Voltage Range can be set in the Compass software (Settings > Input and Output) to
either +26 dBu (15.5 V rms) or +16 dBu (7.75 V rms) These output level settings determine the
clipping levels and provide the flexibility to drive all Meyer Sound self-powered products.
In addition, inputs A, C, E, and H can be configured as Analog or AES. The GALAXY front panel
input meters indicate analog and digital signal levels.
NOTE: The +16 dBu output setting lowers the overall noise floor by nearly 10 dB.
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CHAPTER 3: CONNECTING THE GALAXY
Digital Inputs: AES3
AES3 digital source signals can be connected to the XLR-3F connectors labeled A, C, E, and H
on the GALAXY rear panel. Standard AES3 digital audio signals at sample rates from 20–216 kHz
are supported. The input meters on the GALAXY front panel indicate levels for both analog
and digital signals
NOTE: The Input Channel Types can be set to Analog or AES in the Compass
software (Settings > Input and Output). Because AES signals carry two digital
audio channels, the second connector in the pair is disabled when AES is selected.
AES L or AES R can be assigned to a single channel of processing.
Compass Input and Output tab settings, with Input Channel Selection types
Both analog and digital input sources can be used simultaneously with GALAXY:
■ AES signals can feed inputs A and C (inputs B and D are disabled).
■ Analog signals can feed inputs E and F.
■ AVB signals feed inputs G and H.
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GALILEO GALAXY USER GUIDE
Digital Inputs: AVB
Network digital source signals can be connected to the AVB/Network port connectors (labeled
1 and 2) on the GALAXY rear panel. Standard AM824 eight-channel AVB streams are supported
(24 bit, 96 kHz).
NOTE: The Compass software can set the Input Channel Type to one input type
(Settings > Input and Output). To see channels from a group of GALAXY
devices, those GALAXY devices must be in the same Device Group.
Compass Input and Output Settings, AVB Input Channel selection browser
Outputs from available GALAXY devices will populate the AVB Input Channel Selection
Browser when that device is selected from the available Devices List. The Group can be
selected from the Group selection menu.
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CHAPTER 3: CONNECTING THE GALAXY
AVB STREAMS AND CONTROLLERS
An AVB Stream functions much like an analog multi-cable. Each stream can vary in number of
channels and format, similar to AES3 versus standard analog multi-cables. The difference is
that many audio streams can flow down a single Ethernet cable. Unlike traditional multicables, AVB streams do not stay connected when the audio devices are turned off. An AVB
software controller creates and maintains these connections running on a computer attached
to the network or inside one of the audio devices being controlled. An AVB controller in the
audio device will maintain persistent connections and remake connections after power cycle
or other interruptions like unplugging an Ethernet link.
Each GALAXY has a built-in AVB controller. When a GALAXY A’s inputs are subscribed to
GALAXY B’s outputs for the first time using Compass software, GALAXY A’s AVB controller
will attempt to remake that connection in case of any interruption.
GALAXY AVB streams are 24-bit/96 kHz 8-channel AM824 packet format. AM824 supports
the transport of multi-channel 24-bit linear audio. Since GALAXY inputs can choose up to
eight individual AVB channels from up to eight different streams, it is possible to send up to
eight 8-channel streams (64 channels) into the unit. However, only eight of them are available
for input processing. GALAXY outputs use two AM824 formatted streams: Outputs 1–8 are
available in the first 8-channel stream, outputs 9–16 are available in the second 8-channel
stream. If no units have subscribed to these streams, the GALAXY will stop transmitting
altogether. The analog outputs are always active.
The following shows the number of streams/audio channels possible on different kinds of
Ethernet links*:
■ 23 eight-channel GALAXY formatted streams can be safely transmitted using a 1 Gb/s
link at 75% Bandwidth Usage (184 channels)
■ 238 eight-channel GALAXY formatted streams can be safely transmitted using a 10 Gb/s
link at 75% Bandwidth Usage (1904 channels)
■ 954 eight-channel GALAXY formatted streams can be safely transmitted using a 40 Gb/s
link at 75% Bandwidth Usage (7632 channels)
*An Ethernet link is the either a CAT5e or better 8P8C (RJ45), or a fiber cable with the hardware
ports either cable type is attached to. There are three common link varieties: 1 Gb/s, 10 Gb/s,
and 40 Gb/s. A 1 GB/s or better Ethernet link will work for AVB transmission using properly
configured hardware: Copper, multi-mode fiber, single-mode fiber, etc. Fiber transceiver format
must match the cable being used. Meyer Sound recommends AVB compliant (preferably
AVNU certified) network switches.
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AVB CONNECTIONS BETWEEN DEVICES
Galileo GALAXY 816
Galileo GALAXY 816
Galileo GALAXY 816
Galileo GALAXY 816
Optional Redundant Connection**
Example Connection Diagram
FOH
Stage RightStage Left
Galileo GALAXY 816
Galileo GALAXY 816
Extreme 440 8 port AVB Switch
Extreme 440 8 port AVB Switch
:^P[JOSPURZJHUILJVWWLYVYÄILY
Galileo GALAXY 816
Extreme 440 8 port
**Spanning Tree Protocol (Rapid)
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
GALILEO GALAXY USER GUIDE
GALAXY AVB connection example
The GALAXY includes two network ports for both AVB and control connections. Either port
can be used to make single connections to the network as shown in the figure above. These
ports take advantage of multiple industry-standard networking protocols to offer an automatic
fail-over procedure:
1. GALAXY uses one of its two available ports during normal operation. When connectivity is
lost on the active port, GALAXY performs a network verification process before switching
to the other port.
2. Once on the other port, GALAXY relies on internal switching protocols to reroute control
and AVB to the now active fail-over port.
3. GALAXY will lose audio for up to 45 seconds while it renegotiates its AVB connections.
Control is restored when the new connection is established.
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CHAPTER 3: CONNECTING THE GALAXY
1
2
1
2
Galileo GALAXY 816
Galileo GALAXY 816
Galileo GALAXY 816
Galileo GALAXY 816
Galileo GALAXY 816
Galileo GALAXY 816
Switch links can be copper or fiber
1
2
*AVNU Compliant NetworkSwitches
*
*
*
*
*
*
Galileo GALAXY 816
Galileo GALAXY 816
FOH
Stage Right
Stage Left
Galileo GALAXY 816
Galileo GALAXY 816
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
GALAXY
SNAPSHOT #1
Optional Redundant Connection**
**Spanning Tree Protocol (Rapid)
AVB REDUNDANT CONNECTIONS BETWEEN DEVICES
GALAXY AVB Redundant Network connection example
This figure above shows a network taking full advantage of the AVB switch spanning tree protocol
along with GALAXY fail-over capability. Any single link in the system could be compromised or
unplugged and the audio will take an alternate route and remake the connections to continue
from device to device.
NOTE: This style of fail-over does not happen instantaneously. It depends on the
network setup and whether the network fault occurs at the switch or at the
GALAXY device. Since a different series of events can occur in each case, it could take
up to 45 seconds to restore the connections (including clock synchronization).
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GALILEO GALAXY USER GUIDE
OUTPUT CONNECTORS (TO LOUDSPEAKERS/ARRAYS)
GALAXY Output connectors
The GALAXY includes 16 XLR-3M output connectors with 24-bit/96 kHz D/A converters. The
GALAXY can easily drive Meyer Sound self-powered loudspeakers to full output at all frequencies,
even over lengthy cable runs.
NOTE: The adjustable output range provides two level output settings to drive
Meyer Sound self-powered products. In the Compass software (Settings>Input
and Output), you can set the Voltage Range for all inputs and outputs to either
+26 dBu (15.5 V rms) or +16 dBu (7.75 V rms), which determines the clipping levels. The +16 dBu output setting lowers the overall noise floor by nearly 10 dB.
NOTE: The GALAXY 816-AES3 provides 16 matrix outputs on eight AES3 digital
outputs. For more information, see Appendix A, “Galileo GALAXY 816-AES3.”
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CHAPTER 3: CONNECTING THE GALAXY
!
CONNECTING THE SIM 3 AUDIO ANALYZER
GALAXY SIM 3 connectors
The GALAXY rear panel includes a bus for direct connection to the SIM 3 audio analyzer. The
GALAXY can then act as a line switcher for the analyzer, and measure across any selection of
inputs and outputs without additional patching.
The default bus address for the GALAXY is 10 and the available range is 0–14. The SIM 3 is
auto-detected when connected. Its presence is indicated with the SIM 3 LED on the GALAXY
front panel. The SIM 3 also appears in the Compass software (Settings > SIM 3).
For more information regarding SIM 3 compatibility, please contact Meyer Sound Technical
Support:
■ +1 510.486.1166 (local) or +1 855.641.3288 (toll free from US and Canada)
Looping SIM Connector
A second SIM 3 (looping) connector is included on the GALAXY rear panel that can be used to
connect to an additional GALAXY or to a SIM-3088 line-level switcher.
CAUTION: If a SIM-3088 switcher is connected to the SIM 3 looping connector,
you must use a SIM-3004 remote power supply. Make sure the power supply
connector is marked Connect to 3022 Analyzer Only before making this connection.
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GALILEO GALAXY USER GUIDE
GALAXY
816
AES3
GALAXY
816
GALAXY
816
GALAXY
816
APPENDIX A: GALILEO GALAXY 816-AES3
The GALAXY 816-AES3 provides 16 matrix outputs on eight AES3 digital outputs. It can be
used to drive the standard GALAXY’s AES3 digital inputs, or any device that accepts 96 kHz
AES digital audio. This appendix documents the differences between the GALAXY 816-AES3
and the standard GALAXY.
GALAXY-AES3 driving three GALAXY devices
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APPENDIX A: GALILEO GALAXY 816-AES3
Inputs
The GALAXY 816-AES3 has the same eight analog/digital audio inputs (A–H) as the standard
GALAXY. The inputs can be switched between analog and digital in the same manner as the
standard GALAXY.
Outputs
The top row of eight XLR audio outputs for the GALAXY 816-AES3 provides 16 channels of
AES3 digital outputs (two channels per output: 1–2, 3–4, etc.). Use only cables rated for AES
signals to connect these outputs to the inputs of AES3 devices. The bottom row has eight
analog XLR audio outputs (9–16). Any output processing applied to outputs 9–16 are mirrored
in digital format on the appropriate AES3 output and on the corresponding analog output.
GALAXY-AES3 rear panel
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GALILEO GALAXY USER GUIDE
Processing
The GALAXY 816-AES3 offers the same processing on inputs and outputs as the standard
GALAXY. The GALAXY 816-AES3 includes an additional BNC connection for external word
clock input.
ProcessingGALAXY 816-AES3GALAXY 816
InputsGain
500-ms Delay
U-Shaping EQ
Parametric EQ
NetworkWord Clock Input none
AVB I/O
OutputsU-Shaping EQ
Parametric EQ
Polarity Reversal
2-sec Delay
Atmosphere Correction
Delay Integration
High- / Low-Pass Filters
Gain
(Standard)
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APPENDIX A: GALILEO GALAXY 816-AES3
AVB
PUSH
AES3
AES3 Input
Selection
AES In Clock =
20 kHz to 216 kHz
Validty
check
WORD Clock =
44.1 kHz or
48.0 kHz or
88.2 kHz or
96.0 kHz or
176.4 kHz or
192.0 kHz
100ppm
AVB Media
Clock
Selection
ASRC
SSRC
Word Clock In
AVB Output
(96kHz)
AVB
SSRC = Synchronous Sample Rate Converter (48kHz to 96kHz)
ASRC = Asynchronous Sample Rate Converter
If Word Clock input is outside of 100ppm range, GALAXY will automatically switch back to Internal Clock.
SYNC CLOCK LED will be red color and Error code will display in red color on front panel.
AES3
Outputs
1-16
ASRC
AVB
Media
Clock
AES3
Word
Clock
GALAXY
Internal
Clock
BNC
Internal Processor
Clock Section
96kHz, 100ppm
AES3
Output
Settings
AES3 Output
Clock Select
System
Clock
AES3
System
Clock
Selector
Word
Clock
XLR
AVB In Clock =
48 kHz or 96 kHz
RJ-45
SSRC
NOTES:
1. GALAXY Internal Process Clock is always 96kHz.
2. AVB Media Clock is the default process clock when selected and present.
3. Internal 96kHz System Clock is default if no AVB or other selected.
4. Selected AES3 has Priority over External Word Clock (BNC).
GALAXY 816-AES3 Clock
The GALAXY 816-AES3 offers different clock options for the system clock and AES output
clock. The GALAXY 816-AES3 can be synchronized to an external source depending on the
digital input selection: AES offers 20–216 kHz; Word Clock offers 48 or 96 kHz.
GALAXY 816-AES3 clocking scheme
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GALILEO GALAXY USER GUIDE
APPENDIX B: GALAXY SPECIFICATIONS
INPUTS
Input Section8 inputs
Analog, AES3, AVB (via network ports)
ConnectorsGold-plated XLR-female
Analog and AES3
Maximum Peak SPL+26 dBU (maximum range selected, 0 dB input gain)
Metering4-segment LED ladder meters on each input
OUTPUTS
Output Section8 analog outputs for GALAXY 408,16 analog outputs for GALAXY 816
16 AES3 outputs for GALAXY 816-AES3 plus 8 mirrored analog outputs
ConnectorsGold-plated XLR-male
Maximum Output Level+26 dBU into 600 or greater (maximum range selected)
MeteringVariable intensity, bi-color signal presence/clip LED on each output
MATRIX
Summing MatrixFull 8 x 16 summing matrix; any input summed with any input and routed
to any output
Delay MatrixSparse 8x16 tap Delay Matrix: 500 ms total delay at each cross point (non
fading)
PROCESSING
Digital Conversion24-bit resolution, 96 kHz sample rate
Emissions: EN 55032: 2012 (Class B); CISPR 32: 2012
EN 61000-3-2:2006 +A1:2009 +A2:2009, EN 61000-3-3:2008
Immunity: EN 55103-2:2009
EN 61000-4-2:2009, EN 61000-4-3:2006 +A1: 2008 +A2:2010, EN 61000-4-4:2004+A1:2010,
EN 61000-4-5:2006, EN 610004-6:2009, EN 61000-4-11:2004
Environmental:
EN 50581:2012
This product complies with the requirements of the European Union Directives listed below:
2014/35/EU Low Voltage Directive
2014/30/EU EMC Directive
2012/19/EC Waste Electrical and Electronic Equipment (WEEE) Directive
2011/65/EU Restriction of Hazardous Substances (RoHS) Directive
Supplementary Information:
This equipment complies with all the requirements for the CE Mark.
Signature: _____________________________________
Date of issue: August 18, 2016
Mr. Alan Hutchinson
Regulatory Compliance Engineering Manager
Meyer Sound Laboratories Inc.
Berkeley, California 94702 USA
European Contact:
Your local Meyer Sound dealer, or
Meyer Sound Germany, GmbH.
Horresser Berg 4A, 56410 Montabaur, Germany
DECLARATIONS OF CONFORMITY
GALILEO GALAXY USER GUIDE
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APPENDIX C: COMPLIANCE
GALAXY 408 EMC FCC DECLARATION OF CNFRMTY
Meyer Sound Document Number 01.237.001.03 Revision A Dated 2016-8-26 Page 1 of 1
FCC DECLARATION OF CONFORMITY
Trade Name: Meyer Sound Laboratories
Product Name: Loudspeaker Management System
Product Model Numbers: Galileo Galaxy 408
These devices comply with Part 15 of the FCC Rules
Operation is subject to the following conditions:
The devices may not cause harmful interference, and
The devices must accept any interference received, including
interference that may cause undesired operation
RESPONSIBLE PARTY
Responsible Party's Name: Meyer Sound Laboratories
Address: 2832 San Pablo Ave, Berkeley CA. 94702, USA
Telephone: 510-486-1166
Date: 26 August 2016
Printed Name: Mr. Alan Hutchinson, Regulatory Compliance Engineering Manager
FCC Class B Notice
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/television technician for help.
Modifications not expressly approved by the manufacturer could void the user's authority to operate the
equipment under FCC rules.
ICES-003 Class B Notice - Avis NMB-003, Classe B
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
Emissions: EN 55032: 2012 (Class B); CISPR 32: 2012
EN 61000-3-2:2006 +A1:2009 +A2:2009, EN 61000-3-3:2008
Immunity: EN 55103-2:2009
EN 61000-4-2:2009, EN 61000-4-3:2006 +A1: 2008 +A2:2010, EN 61000-4-4:2004+A1:2010,
EN 61000-4-5:2006, EN 610004-6:2009, EN 61000-4-11:2004
Environmental:
EN 50581:2012
This product complies with the requirements of the European Union Directives listed below:
2014/35/EU Low Voltage Directive
2014/30/EU EMC Directive
2012/19/EC Waste Electrical and Electronic Equipment (WEEE) Directive
2011/65/EU Restriction of Hazardous Substances (RoHS) Directive
Supplementary Information:
This equipment complies with all the requirements for the CE Mark.
Signature: _____________________________________
Date of issue: August 26, 2016
Mr. Alan Hutchinson
Regulatory Compliance Engineering Manager
Meyer Sound Laboratories Inc.
Berkeley, California 94702 USA
European Contact:
Your local Meyer Sound dealer, or
Meyer Sound Germany, GmbH.
Horresser Berg 4A, 56410 Montabaur, Germany
GALILEO GALAXY USER GUIDE
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APPENDIX C: COMPLIANCE
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CE
GALILEO GALAXY USER GUIDE
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APPENDIX C: COMPLIANCE
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Meyer Sound Laboratories Inc.
2832 San Pablo Ave.
Berkeley, CA 94702