Wohler iAM-SUM8 User manual

iAM-SUM8
iAM-SUM16
iAM-SUM32
Multi-Channel Audio Monitor/Mixers
User Guide
Part Number 821836, Revision A

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Phone: [phone]
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Last Update
March 29, 2023

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TAB E OF CONTENTS
Table of Contents
User Guide ........................................................................................ 1
TABLE F C NTENTS .......................................................................... 3
Table of Contents ........................................................................................... 3
CHAPTER 1: Installation....................................................................... 7
Introduction .................................................................................................. 7
verview ............................................................................................ 7
Safety .......................................................................................................... 7
Instructions ......................................................................................... 7
Safety Symbols.................................................................................... 8
Mounting............................................................................................. 8
Heat Dissipation................................................................................... 8
Sympathetic Vibration........................................................................... 9
Mechanical Bracing ............................................................................... 9
Electrical Interference ........................................................................... 9
Power ................................................................................................. 9
Compliance ................................................................................................... 9
FCC.................................................................................................... 9
ICES-003 .......................................................................................... 10
CHAPTER 2: Local peration............................................................... 11
peration.................................................................................................... 11
Startup....................................................................................................... 11
Front Panel.................................................................................................. 11
Rear Panel................................................................................................... 13
SFP-2022-6 / SFP-2110 Address Setup............................................................ 18
Channel Meter Screen................................................................................... 19
perating the Monitor................................................................................... 20
Add or remove Clusters from the Monitor Mix ......................................... 20
Solo a Cluster .................................................................................... 20
Adjust the Trim of a Cluster ................................................................. 21
Selecting the Loudness Cluster............................................................. 21
Menu / ption Touchscreen ........................................................................... 22
Main Menu ........................................................................................ 23
Loudness Menu .................................................................................. 23
Loudness Meter.................................................................................. 23
Loudness Settings .............................................................................. 26
Source Select .................................................................................... 27
Presets ............................................................................................. 29
All Presets ......................................................................................... 29
Preset Favorites ................................................................................. 31
Unit Settings ..................................................................................... 32
Speaker ptions................................................................................. 32

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Unit Configuration .............................................................................. 33
Meter Scales...................................................................................... 34
Phase Configuration............................................................................ 36
Analog Configuration .......................................................................... 37
System ptions Menu ......................................................................... 38
Network Settings................................................................................ 38
System Reboot .................................................................................. 40
System Update .................................................................................. 41
Factory Reset .................................................................................... 42
System Information............................................................................ 43
Passcode Settings .............................................................................. 44
Forgotten Passcode ............................................................................ 46
CHAPTER 3: Technical Info ............................................................... 47
CHAPTER 4: The iAM-SUM Web GUI..................................................... 52
Web Browser / Control Device........................................................................ 52
First Time IP Assignments ............................................................................. 52
Peer-to-Peer Connection...................................................................... 52
Network Connection............................................................................ 53
Network Setup............................................................................................. 54
Dashboard .................................................................................................. 55
Audio Meters ............................................................................................... 59
System Preferences...................................................................................... 60
System Audio Clock Reference ............................................................. 60
Loudness Configuration Tab ................................................................. 61
Front Panel Configuration Tab .............................................................. 62
Preset Management...................................................................................... 65
utput Routing ............................................................................................ 69
Destination utputs............................................................................ 70
Source Inputs .................................................................................... 71
utput ptions .................................................................................. 71
Typical Questions Regarding utput Routing .................................................... 72
What signal outputs can be controlled using the utput Routing feature? ... 72
How do the outputs behave if I do not purchase PT- UTPUT-R UTING
license? ............................................................................................ 72
What is the difference between Global utput Routing and utput Routing in
Presets?............................................................................................ 72
How do I route whatever is being monitored to the XLR and AES outputs?.. 73
How do I have a downmixed pre-fade output on AES Pair-1 combined with a
post-fade output on the Analog XLRs? ................................................... 73
How do I make the XLR outputs follow the Audio Meter screen solos & mutes
while the AES Pair-1 does not? ............................................................. 73
How do I route only specific monitored channels to the Analog XLR outputs?
....................................................................................................... 74
The optional Global utput Routing feature works great. But what if we don't
want to create any Presets and want to monitor audio only using Source
Select? How would I configure different outputs for Source Select choices?. 74
How do I keep the internal speakers muted and have audio only on the
analog XLR outputs? ........................................................................... 75
How do I ensure that the outputs are automatically muted when the
Headphone jack is inserted?................................................................. 75
What are AoIP-Pair 9 and AoIP Pair 10?................................................. 76
How do I ensure that my outputs are pre-faded but follow the solo-mutes on

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the web interface? This will allow us to monitor only the unmuted/solo Audio
Meter channels on amplified stereo speakers connected to the Analog XLR’s.
....................................................................................................... 76
Preset Replication......................................................................................... 77
Import/Export Presets................................................................................... 79
Export Configuration........................................................................... 79
Import Configuration .......................................................................... 80
System....................................................................................................... 82
System Information............................................................................ 82
SFP Information ................................................................................. 83
Licenses............................................................................................ 84
Factory Reset .............................................................................................. 85
Reboot System ............................................................................................ 86
APPENDIX A: Software Upgrades......................................................... 87
Introduction ................................................................................................ 87
Download the Software ................................................................................. 87
Update Methods........................................................................................... 87
Local Update from the Front Panel .................................................................. 88
Updating via the Web GUI using a Flash Drive .................................................. 90
Updating an iAM-SUM Remotely ..................................................................... 92
Updating Multiple Units Remotely ................................................................... 94
APPENDIX B: Dante Network Setup ..................................................... 97
Introduction ................................................................................................ 97
What is in the iAM-SUM for Dante? ................................................................. 97
Dante
TM
Device Setup ................................................................................... 99
Dante Clock Selection ..................................................................................100
Channel Names...........................................................................................100
AES67 .......................................................................................................101
Device Lock................................................................................................103
Dante Firmware Upgrades ............................................................................103
Additional Information .................................................................................104
Dante
TM
Legal Disclosures.............................................................................104
APPENDIX D: Ravenna (ZMAN) Setup .................................................105
Introduction ...............................................................................................105
What is in the iAM-SUM for Ravenna?.............................................................105
RAVENNA-Compatible Talker/Listener...................................................105
AVB Ethernet Features .......................................................................105
Configuring the A IP Merging ption Card......................................................106
Getting Started | General Settings .......................................................107
Getting Started | PTP.........................................................................108
Getting Started | Session Sources........................................................109
Getting Started | Session Sinks ...........................................................110
Getting Started | Session Info .............................................................111
Getting Started | Ins/ uts ..................................................................112
Getting Started | I/ Router ...............................................................112
peration: .................................................................................................113
Connecting Remote Source to Local Sink ..............................................113

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ZMAN Session Sinks ..........................................................................113
ZMAN Session Sources.......................................................................115
ZMAN Updating.................................................................................115
APPENDIX E: API Documentation .......................................................116
Introduction ...............................................................................................116
API: Presets ...............................................................................................116

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CHAPTER 1: Installation
Introduction
verview
The iAM-SUM Series is a set of well featured, easy to use and competitively priced
IP ready audio monitors /mixers available in 8, 16 or 32 channel configurations.
Whether monitoring 8, 16 or 32 channels, the unit can be configured to operate in
channel mode and/or pair mode. Standard features include 3G-SDI and a pair of
Analog inputs and outputs. Upgrade/license other signal formats and processing
options, as and when needed, either initially or after purchase. Refer to the
Specifications section of this manual or contact Wohler Sales for more information.
The iAM-SUM is compact and simple to operate, with straightforward controls. It
has a very wide format touch screen LCD display providing up to 8, 16, or 32 high
resolution level meters, depending upon the model. Any audio channels (or channel
pairs) from any audio/video source stream may be monitored.
The iAM-SUM includes two 3G SDI inputs, one switched 3G SDI output, and a pair
of analog inputs and outputs. ptional modules will allow decoding of an additional
SDI input, MADI, AES3, SMPTE 2110, SMPTE 2022-6, and AES streams. It contains
APIs for remote management.
ptional utput routing enables the flexibility to route input signals to various
outputs. ptional I/ for AES3 on HD-15 (including selected audio source converted
to AES3 out), MADI on BNC (and looped output), and SMPTE 2110 or SMPTE 2022
via SFP is offered. ption cards will allow choice between AoIP, an additional 8
channels of analog inputs and outputs, or 2 additional SFP cages.
Setups are created and configured using local menus and a web browser over a
network connection to the integral web server of the iAM-SUM. Up to 64 Presets are
accommodated. The web server will also allow you to view the audio meters
remotely.
Safety
Instructions
1. Read, keep, and follow all of these instructions; heed all warnings.
2. Do not use this equipment near water.
3. Use only a dry cloth to clean the equipment.
4. Do not block any ventilation openings.
5. Do not install near any heat source such as a radiator, heat register, amplifier, or
stove.
6. Do not attempt to plug the unit into a two-blade outlet (with only two prongs of
equal width).

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7. Protect the power cord from being walked on or pinched, particularly at plug
connection on the equipment and at the socket.
8. Use only the attachments/accessories specified by the manufacturer.
9. Unplug the equipment during lightning storms or when unused for long periods
of time.
10. Refer all servicing to qualified service personnel. Servicing will be required
under all of the following conditions:
a. The equipment has been damaged in any way, such as when the power-
supply cord or plug is damaged.
b. Liquid had been spilled or objects have fallen onto the equipment.
c. The equipment has been exposed to rain or moisture.
d. The equipment does not operate normally.
e. The equipment has been dropped.
Safety Symbols
Mounting
The unit is designed for a standard 19" rack. Install it at ear/eye level for best high
frequency response and visual observation of the display screens. Please adhere to
the following clearances:
Table 1-1: Clearance Recommendations
Clearance Surface
24” Front
3” Rear
2” Sides
1.75” Top and Bottom (if either radiates heat)
0” Top and Bottom (if no heat)
Heat Dissipation
The ambient temperature inside the mounting enclosure should not exceed 40°
Celsius (104° Fahrenheit). Adjacent devices can be rack mounted (or stacked) in
WARNING:
The symbol to the left warns of electric shock hazard inside the unit.
Disconnect the power cord before removing access panels when
installing upgrades. nly qualified service personnel are to operate
the equipment with covers removed, and are to exercise caution to
avoid personal injury.
Important:
By design, the supplied AC mains power cord will only plug into a
three-prong grounded outlet for your safety. If the plug does not fit
into the outlet, contact an electrician to replace the obsolete outlet.

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proximity to the unit if this temperature is not exceeded. therwise, allow a 1RU
(1.75”/44.45mm) space above and below the unit for air circulation.
Sympathetic Vibration
Sympathetic vibration from other equipment (cables, etc.) in the rack may be
serious enough to interfere with the unit’s sound quality. If you experience
sympathetic vibrations, use thin card stock, felt, foam, or weather-stripping
between the vibrating surfaces. Tie loose cables securely with cable ties.
Mechanical Bracing
The 1RU chassis is securely attached to the front panel. In addition, the chassis has
mounting tabs through which you attach it to the rack rail. This feature will reduce
or eliminate rear bracing requirements in many mobile/portable applications. The
weight of internal components is distributed fairly evenly around the unit.
Electrical Interference
Be careful to avoid mismatched cable types and other similar causes of undesired
reflections in digital signal systems. If severe enough, such reflections can result in
corruption of the digital data stream. As with any audio equipment, maximum
immunity from electrical interference requires the use of shielded cable; however,
satisfactory results can sometimes be obtained without it. The internal circuitry
ground is connected to the chassis.
Power
The unit connects to an AC mains power source (100 to 240 VAC, 65W, 50/60Hz)
using an IEC power cord.
When the mains plug or appliance coupler is used as the disconnect device, the
disconnect device should remain operable.
Compliance
FCC
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
peration of this equipment in a residential area is likely to cause harmful
Important
:
Heat generated by the class D power amplifiers, power supplies,
and other components is vented by slots in the sides and back of
the unit. Therefore, as a safety precaution, you must allow proper
ventilation on these surfaces.

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interference, in which case users will be required to correct the interference at their
own expense.
ICES-003
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du
Canada.

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CHAPTER 2: ocal Operation
Operation
The iAM-SUM can be operated easily and simply from controls on its front panel, as
described in this chapter. It may be accessed remotely in two ways, via the Wohler
Web GUI for administrative purposes or by third party equipment via Application
Programming Interface (API) commands. The Wohler Web GUI is described in
Chapter 4 of this manual. The API commands are described in Appendix E of this
manual.
Startup
The iAM-SUM will begin its startup process when it is connected to power. There is
no power switch. It is normal for the product to require about 45 seconds to start
up and be ready to use.
When the iAM-SUM completes its startup, the Status indicator will turn green.
Depending upon optional settings, all channel pairs will either be in the muted
condition or set in a predetermined way. You may then use the Source and
Channel controls to enable only the program channels you want to hear.
Front Panel
The front panel is shown in Figure 2-1.
Figure 2–1: iAM-SUM Front Panel
1. Interactive CD Metering Display: A widescreen LCD touch screen allows
monitoring of bar graph meters of up to 8, 16, or 32 channels, depending upon the
model, as well as selecting which channels to monitor audibly.
2. Speakers: Local near field audio monitoring is achieved through the use of Class D
amplifiers. There are two (left/right) speakers.
3. Headphone Jack: A 1/4" jack for an optional headphone is provided on the front
panel. Speaker audio can be optioned to either mute or not mute when
headphones are plugged in. This is set in the Speaker Options menu. If the

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speaker audio is set to mute with headphone insertion, and a headphone is plugged
into the Headphone Jack, the following icon will appear at the center top of the
display:
4. Master Volume: This controls the speakers, the headphone and the analog
outputs. As the Master Volume control is turned, a graphic appears on the upper
part of the screen as follows:
Pressing the Master Volume control dims the audio and a second press mutes the
audio. When the audio is muted, a speaker muted icon appears at the center top
the display: This icon also displays whenever the Volume control is turned
all the way counterclockwise. Rotating the Master Volume immediately removes
the dim or mute.
5. Channel Trim: This control lets you adjust the volume level of individual channels
or pairs in the mix.
6. Source/Preset/Menu Selector: Turning this control right or left selects between
the available licensed input sources. Pressing the Source/Preset control for 2
seconds proceeds to the Main Menu. Alternatively, rotating the Source/Preset
control can be set to No peration, so that rotating it will have no effect at all.
Refer to the Source Knob Select setting in the Unit Config menu.
7. Channel Selector: This is used to select individual channels or channel pairs for
the purposes of soloing, adding to the monitored mix or removing from the mix, or
trimming their volume level.
8. USB: This USB 2.0 Type A connector allows use of a flash drive (not supplied) to
perform software updates.
9. Status: This indicator lights green when the system is powered and ready for use.
A solid or blinking yellow color indicates that the product is starting up. A red color
indicates that a system update is taking place.

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Rear Panel
The rear panel is shown in Figure 2-2.
Figure 2-2: iAM-SUM Rear Panel & ption Cards
MADI
Fiber SFP
MADI
BNC
SFP Module
Cage
Network
Port
Balanced XLR
Analog Inputs
Balanced XLR
Analog utputs
SDI
Inputs
SDI
utput
AES Inputs Power
Connection
AES utputs
Balanced DB-25
Analog Inputs
Balanced DB-
25 Analog
utputs
T SLINK
ptical
Input
ption Card
Slot
SFP Module
Cage
SFP Module
Cage
T SLINK
ptical
Input
AoIP SFP
Module Cage
Primary /
Secondary
1GB Ethernet
Ports
Combo
Port
Power Connection: The iAM-SUM receives power from an AC inlet, which is a standard
IEC receptacle for 100 to 240 VAC ±10%, 50/60 Hz power connection. Four regional AC
power cords, supplied according to shipping region, are available.
1. SDI Inputs: These two BNC connectors accept the two 3G/HD/SD-SDI
input signals containing audio to be monitored. This is a standard feature.
2. SDI Output: This BNC connector outputs the selected 3G/HD/SD-SDI or
SFP module input signal.
3. Network Port: This Ethernet port can connect to either a LAN or to a PC
to let you perform administrative tasks remotely. The Wohler Web GUI is
described in Chapter 4 of this manual. Third party equipment, connecting to
the iAM-SUM via a LAN plugged into this port and using an API commands,
can view and change product options, as well. This API is described in
Appendix E of this manual.
4. MADI BNC: (optional) The C AX input accepts an AES10 64-channel
signal at 48 kHz sample rate. An optional license key must be purchased to
Important:
By design, the supplied AC mains power cord will only plug into a
three-prong grounded outlet for your safety. If the plug does not fit
into the outlet, contact an electrician to replace the obsolete outlet.

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enable this function. The C AX output is reclocked from the MADI source.
When power to the iAM-SUM is not present, the C AX input and output
are automatically connected together to allow the MADI signal to pass
through. A software license must be installed for this input to function.
Refer to the System Setup section in Chapter 4 to install software
licenses.
5. MADI Fiber SFP: (optional) This input module accepts an optical AES10
64-channel MADI input signal at 48 kHz sample rate. An optional license
key must be purchased to enable this function. A software license must be
installed for SFP ports to function. Refer to the System Setup section in
Chapter 4 to install software licenses.
6. AES Inputs: (optional) This HD-15F connector accepts 4 AES3id digital
audio pairs (8 channels) at a 48 kHz sample rate. Refer to Figure 2-3 for
the pinout of this connector. The easiest way to interface with this
connector is to use an HD-15 to VGA adaptor cable. Channels are selected
as AES 1-8. A software license must be installed for these inputs to
function. Refer to the System Setup section in Chapter 4 to install
software licenses.
Figure 2-3: AES HD-15F Connector Pinout
7. AES Outputs: This HD-15F connector provides 4 AES3id digital audio
pairs (8 channels) at a 48 kHz sample rate from selected monitored
sources. Refer to Figure 2-3 for the pinout of this connector. The easiest
way to interface with this connector is to use an HD-15 to VGA adaptor
cable. These outputs are not controlled by the Volume and Balance
controls. Monitored channels 1 and 2 are sent from AES-1, channels 3 and
4 are sent from AES-2, channels 5 and 6 are sent from AES-3, and
channels 7 and 8 are sent from AES-4.
8. SFP Module Cage: An SFP cage is provided to accept one optional SFP
module compatible with SDI coaxial or optical signals. The SFP modules
are hot swappable for convenience. An optional license key must be
purchased to enable each module. A software license must be installed for
the SFP port to function. Refer to the System Setup section in Chapter 4
to install software licenses. The following SFP modules are offered:

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a. 3G/HD/SD-SDI Single Video Receiver with Active oopback:
This uses HD-BNC connectors.
b. 3G/HD/SD-SDI Video SFP with Optical Input: This uses LC
fiber connectors. It is a Single-Mode Receiver, Medium Haul, Non-
MSA, and no output.
c. SMTPE 2022-6 Receiver: This uses Multi-Mode 850 NM, LC fiber
connectors. It allows the iAM-SUM to monitor SDI audio
transmitted in real time over Ethernet. You must use the MN-Set
configuration software to set up this option. It is available from
Wohler Technologies Technical Service.
d. SMTPE 2110 Receiver: This uses Multi-Mode 850 NM, LC fiber
connectors. It allows the iAM-SUM to monitor SDI audio
transmitted in real time over Ethernet. You must use the MN-Set
configuration software to set up this option. It is available from
Wohler Technologies Technical Service.
e. SMTPE 2110 or 2022-6 Receiver: This uses Multi-Mode 850 NM,
LC fiber connectors. It allows the iAM-SUM to monitor SDI audio
transmitted in real time over Ethernet. You must use the MN-Set
configuration software to set up this option. It is available from
Wohler Technologies Technical Service.
9. Analog Inputs: These female XLR connectors provide two balanced
analog inputs: Left and Right . The Analog Inputs are standard on the
iAM-SUM. Refer to Figure 2-4 for the pinout of this connector.
Figure 2-4: Analog XLR-F utput Connections
10. Analog Outputs: These male XLR connectors provide two balanced
analog outputs: Left and Right . The source of these signals is the mix of
audio as monitored by the internal speakers and is adjusted by the
Volume and Balance controls. The Analog Outputs are standard on the
iAM-SUM. Refer to Figure 2-5 for the pinout of this connector.

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Figure 2-5: Analog XLR-M utput Connections
11. Option Card Slot: This metal plate can be removed to reveal a location
in which future optional modules can be installed.
12. TOS INK Optical Input (optional): This connector is located on the
panel of the optional PT-iVAM ANAL G ption card, as well as on the
panel of the AoIP ption card. It provides an optical stereo pair input.
13. Balanced Analog DB-25 Outputs (optional): This DB-25 female
connector outputs 8 channels of +10dBu broadcast level balanced audio.
This connector is located on the panel of the optional PT-iVAM ANAL G
ption card. The source of these signals is the monitored audio channels
as shown on meters 1 - 8. Tascam cables may be used, and can be
purchased by contacting Wohler Sales. Refer to Figure 2-6 for the pinout
of this connector.
Note: PCM channels marked as data channels (such as those containing
encoded Dolby streams) are automatically muted from being sent out to the
external amplifier and speakers.
Note: When these outputs are used to connect to an external amplifier and
speakers, the external amplifier should be muted whenever the iAM-SUM is
being powered up or powered down.
14. Balanced Analog DB-25 Inputs (optional): This DB-25 female
connector inputs 8 channels of up to +10dBu broadcast level balanced
audio. This connector is located on the panel of the optional PT-iVAM
ANAL G ption card. These signals are monitored on meters 1 - 8 by
default. Tascam cables may be used, and can be purchased by contacting
Wohler Sales. Refer to Figure 2-6 for the pinout of this connector.

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Figure 2-6: Analog DB-25F Input and utput Connections
12345678910111213
141516171819202122232425
GG
GG
GGGG
N/C
L R L R L R L R
Pair 1 Pair 2 Pair 3 Pair 4
15. AoIP SFP Module Cage (optional): This provides a location in which to
insert the AoIP Module supplied with the PT-DANTE (iVAM) and PT
RAVENNA 64 (iVAM) options.
16. Primary / Secondary 1GB ENET (optional): Primary and Secondary
Gigabit Ethernet interfaces are provided with the AoIP option module.
17. Combo Port (optional): An optional 1GB Fiber Ethernet SFP module and
the Primary RJ-45 Ethernet port on the option card operate as a combo
port, that is, they provide two different physical layers, optical fiber or
electrical, but share the same Ethernet characteristics. However, the two
different ports cannot be used simultaneously. You must choose to
connect either one or the other.

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SFP-2022-6 / SFP-2110 Address Setup
While the optional SFP-2022-6 and SFP-2110 modules monitor program audio
created from distinctly different technologies, both are connected to the network in
the same way and have the same requirements for addressing. Figure 2-7
illustrates the network connections they need.
Figure 2-7: SFP-2022-6 and SFP2110 Network Diagram
Ethernet Network & Swit h
Broad ast Equipment
Throughout the Fa ility
iAM-SUM with SFP-2022-6 / SFP-2110
PC
Fiber
Opti
192.168.39.217
192.168.39.215
The optional SFP-2022-6 or SFP-2110 module furnished by Wohler Technologies is
manufactured by Embrionix and comes from the factory with a default IP address.
To integrate it into your digital network, you need to set its address to the source to
be monitored. You must use the MN-Set configuration software to set up this
option. It is available from Wohler Technologies Technical Service. The procedure to
accomplish this is described in the SFP-2022-6 / SFP-2110 Setup Guide (part
number 821822), which is available at https://wohler.com/downloads/ .

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Channel Meter Screen
Audio meters, as well as other indicators are displayed on the wide touchscreen
LCD display in Clusters which can be set up as single channels or stereo pairs, as
shown in Figure 2-8.
Figure 2-8: Audio Level Meter Screen
1. Cluster abels: The name or input source of each Cluster is shown. If
this designation is dark, the Cluster is not included in the mix. However,
if the block containing the name is bright green, then the Cluster is part of
the mix. The text of the Cluster Label may be set using the Web GUI.
Refer to Chapter 4.
2. Cluster Number: Above the level meters are the Cluster Numbers. They
indicate the arbitrary sequential numbers of each Cluster in the selected
source. They may be set using the Web GUI. Refer to Chapter 4.
3. Speaker Assignment: The destination of each channel is shown:
Indicates the channel will be monitored from the left speaker.
Indicates the channel will be monitored from the right speaker.
Indicates the channel will be monitored from both speakers.
4. evel Meters: A Level Meter is shown for each channel.
5. Trim Dials: At the bottom of each channel pair
is the round Trim Dial indicator. Its rotational
position shows the whether the Cluster has been
trimmed and relatively how much: The
adjustment range is -60dB to +12dB, and the
dot indicates where 0dB is located in the range.
6. Channel Trim: The channel gain of a particular Cluster can be changed
dynamically. When a Cluster can be adjusted, the Trim Dial will highlight
in purple: The rotational position of the indicator within the Trim
Dial shows the adjustment.
Note: To undo all Cluster trims and reset them to the default value in the
0 dB
Position

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Preset, press and hold the Channel Trim knob for 3 seconds.
7. oudness Cluster Indicator: The current selected Cluster which is
undergoing Loudness analysis is indicated by an orange bracket.
8. oudness Reading: This indicator displays the Loudness of the selected
Cluster. This is also a button which allows you to select which Cluster will
receive Loudness analysis.
9. Phase Indicator: This indicator will normally be dark green if the two
channels are in phase. If the two channels are out of phase, the indicator
will light red. Note that the Phase Indicator does not appear for Clusters
that only contain a single channel.
10. Source: The input source of the displayed channels is displayed.
11. Menu Selector: Touch the Menu button to cause the Main Menu to
appear.
Operating the Monitor
The audio mixer terminology of “solo” is used in this manual when referring to
muting all but a specific Cluster or channel listening only to that cluster or channel.
Add or remove Clusters from the Monitor Mix
To add a Cluster to the monitor mix, simply touch the channel meters for that
Cluster. Touch that Cluster’s channel meters again to remove it.
Alternatively, rotate the Channel knob so that the white box surrounds that Cluster
and then press the Channel knob. Press the Channel knob again to remove the
Cluster.
Solo a Cluster
To solo a Cluster, simply touch and hold the channel meters for that Cluster for 3
seconds. A blue box will surround the cluster and it will be the only Cluster heard.
Touch that Cluster’s channel meters again to remove the solo and return to
monitoring the Clusters the way they were before the solo.
Alternatively, to solo a Cluster, rotate the Channel knob until a white box
surrounds the meters of the cluster to be soloed. Press the Channel knob for 3
seconds. A blue box will then surround the cluster and it will be the only Cluster
heard. At this point you may rotate the Channel knob to move the blue box to solo
other Clusters. Press the Channel knob once again to remove the solo and return
to monitoring the Clusters the way they were before the solo.