Wohler iAM-MIX-8 User manual

iAM-MIX
 iAM-MIX-8
 iAM-MIX-8-DA
 iAM-MIX-8-SDA
 iAM-MIX-8-MADI
 iAM-MIX-16
 iAM-MIX-16-DA
 iAM-MIX-16-SDA
 iAM-MIX-16-MADI
1RU, 8/16 of 64 Channel, Multi-Source Mixing
Audio Monitor
User Guide
Software Release: V1.1
Part Number 821807, Revision C

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© 2016 Wohler Technologies, Inc. All rights reserved.
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Licensed users and authorized distributors of Wohler Technologies, Inc. products may copy this
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is included in all reproductions.
Customer Support
Wohler Technologies, Inc.
31055 Huntwood Avenue
Hayward, CA 94544
Phone: [phone]
Web: www.wohler.com
Sales: [e-mail]
Support: [e-mail]
Disclaimers
Even though Wohler Technologies, Inc. has tested its equipment and software, and reviewed the
documentation, Wohler Technologies, Inc. makes no warranty or representation, either express or
implied, with respect to software, documentation, their quality, performance, merchantability, or
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In no event will Wohler Technologies, Inc. be liable for direct, indirect, special, incidental, or
consequential damages resulting from any defect in the hardware, software, or its documentation,
even if advised of the possibility of such damages.
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Last Update
October 10, 2016

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TABLE OF CONTENTS
Contents
User Guide ........................................................................................ 1
TABLE OF CONTENTS .......................................................................... 3
Contents....................................................................................................... 3
CHAPTER 1: Installation....................................................................... 5
Introduction .................................................................................................. 5
Overview ............................................................................................ 5
Safety .......................................................................................................... 5
Instructions ......................................................................................... 5
Safety Symbols.................................................................................... 6
Mounting............................................................................................. 6
Heat Dissipation ................................................................................... 7
Sympathetic Vibration........................................................................... 7
Mechanical Bracing ............................................................................... 7
Electrical Interference ........................................................................... 7
Power ................................................................................................. 7
Compliance ................................................................................................... 8
FCC.................................................................................................... 8
ICES-003 ............................................................................................ 8
CHAPTER 2: Local Operation................................................................. 9
Startup......................................................................................................... 9
Front Panel.................................................................................................... 9
Rear Panel................................................................................................... 11
Channel Displays.......................................................................................... 14
Preset / Config Menu .................................................................................... 14
Preset Selection ................................................................................. 15
Current Version.................................................................................. 15
Current IP Address ............................................................................. 15
Reset IP Address ................................................................................ 15
Loading Presets from Another iAM-MIX .................................................. 16
Setting DHCP or a Static IP Address ...................................................... 16
CHAPTER 3: Technical Info ............................................................... 17
Web Browser / Control Device........................................................................ 20
First Time- IP Assignments ............................................................................ 20
Peer-to-Peer Connection...................................................................... 20
Network Connection............................................................................ 21
Dashboard .................................................................................................. 22
Sign In ....................................................................................................... 23

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Channel Naming .......................................................................................... 24
Configuration - Setup ................................................................................... 25
Configuration – Named Presets ...................................................................... 27
System Setup.............................................................................................. 28
Scan Network-Discovery ............................................................................... 29
Network Setup............................................................................................. 30
Database Management.................................................................................. 31
Export Configuration ........................................................................... 31
Import Configuration .......................................................................... 32
Save / Restore Database (DB) ....................................................................... 33
APPENDIX A: Software Upgrades......................................................... 34
Introduction ................................................................................................ 34
Download the Software ................................................................................. 34
Installing the Software Locally ....................................................................... 35
Installing Software on Networked iAM-MIXs ..................................................... 36
APPENDIX B: Dante Network Setup ..................................................... 38
Introduction ................................................................................................ 38
What is in the iAM-MIX for Dante.................................................................... 39
Dante Device Setup...................................................................................... 40
Dante Clock Selection ................................................................................... 41
Channel Names............................................................................................ 42
AES67 ........................................................................................................ 43
Device Lock................................................................................................. 44
Dante Firmware Upgrades ............................................................................. 45
APPENDIX C: Ravenna Network Setup ................................................. 46
Introduction ................................................................................................ 46
What is in the iAM-AUDIO for Ravenna ............................................................ 46
RAVENNA-compatible talker/listener ..................................................... 46
AVB Ethernet features: ....................................................................... 46
BACH™ Controller provides a interface to............................................... 47
Home Page.................................................................................................. 48
Patch Panel ............................................................................................... 49
Controller Cloud ........................................................................................ 50
Source Streams ........................................................................................ 51
Stream Destinations ................................................................................. 52
Sync ......................................................................................................... 53
Configuration/Device Management.................................................................. 54

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CHAPTER 1: Installation
Introduction
Overview
The iAM-MIX units are 1RU multichannel multi-source audio monitors with
multiple standard copper connections and multiple SFP module options
facilitating high density coax and optical fiber connections. The unit may also
accept Audio over IP signals via an Ethernet connector. Refer to the
Specifications section or contact Wohler Sales for more information for Audio
over IP capabilities.
The iAM-MIX has individual channel volume controls and mute switches.
With certain exceptions related to master clock compatibility, any channel
from any source stream may be audibly monitored and mixed with the other
selected channels. The iAM-MIX is small, flexible, moderately priced, and
simple to operate. Its setup configuration can easily be copied to other iAM-
MIX units.
Setups are created with a web browser over a network connection. Each
iAM-MIX can be configured with a number of Presets. Nothing about the
configurations of those predefined setups can be changed from the front
panel. This prevents less experienced or hurried operators from making
accidental setup changes that could compromise their usage of the unit. It
also reduces operator training to a minimum.
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 source 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)
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. Only qualified service personnel are to operate
the equipment with covers removed, and are to exercise caution to
avoid
p
ersonal in
j
ur
y
.
Im
p
ortant: By design, this monitor will only plug into a three-prong 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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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 proximity to the unit if this temperature is not exceeded.
Otherwise, allow a 1RU (1.75”/44.45mm) space above and below the unit
for air circulation.
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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 comes with a standard 18 VDC / 3.9 A external power supply that
connects to an AC mains power source (100 to 240 VAC, 1.5A, 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.
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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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. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case the
user 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: Local Operation
Startup
The iAM-MIX-8 and iAM-MIX-16 units (and their variants) take about a
minute to become operational after power is applied. During that time,
several status messages are shown spanning the displays on the front panel.
Front Panel
The iAM-MIX-8 front panel is shown in Figure 2-1. The iAM-MIX-16 front
panel is shown in Figure 2-2.
Figure2–1:iAM‐MIX‐8FrontPanel
Figure2–2:iAM‐MIX‐16FrontPanel
functions or individual items within a control (strip) group.
The audio mixer terminology of “strips” is used in this manual when referring
Important: The number (1-8 or 1-16) above the channel control strips does not
indicate any particular source channel number or arrangement. Strip
numbers only serve as references for channel configurations at the iAM-
MIX Web GUI level. Different Presets typically have different channel
numbers assigned to control strips.

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to the identification of the controls. The control strip display label default is
to display the input type and channel number, but may be changed in the
iAM-MIX Web GUI to show any displayable text or numbers.
1. Speakers:Audio monitoring is achieved through the use of class D
amplifiers driving two (left/right) wide range speakers.
2. Headphone Jack:A 1/4" jack for an optional headphone is provided on
the front panel. Speaker audio mutes when headphones are plugged in.
3. Channel Volume/Mute: Rotating each Channel Volume/Mute
control adjusts the individual level of each corresponding channel.
Pressing this control knob mutes or unmutes the associated channel.
4. Master Volume: This control adjusts the level of the entire mix. Note
that while there is a dedicated Master Volume control on the iAM-MIX-8,
the iAM-MIX-16 incorporates a control that can be set up to be either a
Master Volume control or a 16th Channel Volume/Mute control. The
16th Channel Control is scheduled for release in the near future. Pressing
a Master Volume control alternately mutes or unmutes the entire mix.
5. Control Strips and Level Meters: These miniature displays identify
each Channel Volume/Mute control and provide a basic 10-segment
level meter for each channel. Refer to the Channel Displays section of
this chapter for further information on the functions of the Control
Strips and Level Meters.
6. Preset/Config Button: Pressing this button activates a menu for Preset
selection and configuration status information. Refer to the
Preset/Config Menu section of this chapter for a description of how to
use this button.
7. USB: This USB 2.0 Type A connector allows you to use a flash drive (not
supplied) to perform software updates or copy system configurations to another
iAM-MIX or to a PC.

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Rear Panel
The iAM-MIX-8 and iAM-MIX-16 rear panels are shown in Figure 2-3. They
are identical. Some variants may not have all options stuffed (e.g. the MADI
only unit)
Figure2‐3:RearPanelLayout
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1. Power Connection:The iAM-MIX uses an external AC to 18V DC
power adapter. The AC inlet of the adapter is a standard IEC
receptacle for 100 to 240 VAC ±10%, 50/60 Hz power connection.
Four regional AC power cords, supplied per shipping region, are
available.
2. GPIO:(future implementation) This DB-9 connector provides 2
input pins and 2 output pins to perform GPIO functions as defined
by the iAM-MIX Web GUI.
3. Network Port: This Ethernet port can connect to either a LAN or to
a PC to let you customize the iAM-MIX configuration. It will also
allow you to copy system configurations from one iAM-MIX to
another. It can also be used to update the iAM-MIX software and
firmware.
4. AoIP: This Ethernet port can accept either a Dante or a Ravenna Audio
Important: The monitor and power adapter have been tested as a combined
apparatus to verify compliance with applicable safety and
electromagnetic compliance standards. Use of another power adapter
provided by the user may negate the compliance or cause the
monitor to not perform properly. Wohler Technologies cannot accept
any responsibility for the outcome in such cases.
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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over IP signal. There are different hardware option cards for each signal
and the appropriate/desired capability must be specified at order.
5. MADI BNC: This COAX input accepts an AES10 64-channel signal
at 48 kHz sample rate. The COAX output is reclocked from the
MADI source. When power to the iAM-MIX is not present, the COAX
input and output are automatically connected together to allow the
MADI signal to pass through.
6. MADI Fiber SFP: (optional) This input module accepts an optical
AES10 64-channel MADI input signal at 48 kHz sample rate. The
SFP fiber module may be used in conjunction with the MADI BNC
connectors to provide COAX to fiber or fiber to COAX conversion.
The outputs are reclocked. A software license must be installed for
the SFP port to function. Refer to the System Setup section in
Chapter 4 and to Figure 4-8 to install software licenses.
7. Dolby Metadata: This RJ-45 jack transmits metadata from the
selected Dolby bitstream in RS-485 serial data protocol.
8. AES Out: By default, the BNC AES-1 jack outputs the same mixed
audio as the XLR analog outputs, as heard from speakers or
headphones, but as an AES3id pair. Other options may be set in the
iAM-MIX Web GUI. AES 2-4 jacks are reserved for possible future
implementation.
9. AES In: These four BNC jacks accept AES3id digital audio pairs at
48 kHz sample rate. Channels are selected as AES 1-8.
10. 3G/HD/SD-SDI: The two cages provided accept one or two
optional SFP modules compatible with SDI coaxial or optical signals.
Single or dual transceiver arrangements are possible. A software
license must be installed for an SFP port to function. Refer to the
System Setup section in Chapter 4 and to Figure 4-8 to install
software licenses.
11. Analog Inputs: This DB-25 female connectors accepts +10dBu
broadcast level balanced audio. Tascam pinout cables may be used,
and can be purchased Wohler Sales. Refer to Figure 2-4 for the
pinout of this connector.

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Figure2‐4:AnalogDB25InputConnections
12. 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.
Figure2‐5:AnalogXLROutputConnections

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Channel Displays
Display information for each channel strip is shown in Figure 2-6 below.
Figure2‐6:Strip‐ChannelDisplay
1. Activity Meters: The activity of the 10-segment bargraph meters
provides a quick indication of signal presence. A floating peak bar above
an average level stacked bar is also shown. The meter left/right
position(s) indicates left/right Mix Assignments. Both left and right meters
are displayed when a mono source channel is being sent to both sides of
the speakers, headphones and outputs.
2. Mute: When a channel is muted, the entire display is inverted for
reverse video, so that it will have a white background with black labels
and meters.
3. Strip Labels: Two lines of text can be used to identify the audio source
by name, channel number, or other information.
a. Five or six upper case letters or numbers will typically fit on each
line. Since text character widths vary, the exact number of
characters displayed can vary. The right edge may get cut off if
very wide characters are entered.
b. Lower case text characters are displayed as smaller capital letters
(small caps) to allow more characters to be displayed.
Preset / Config Menu
Operators can select between up to 8 Presets or access several control or
information screens by pressing the PRESET / CONFIG button on the front
panel. It is recessed to prevent accidental activation. When the button is
pressed, the menu shown in Figure 2-7 appears. Figure 2-7 depicts the

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menu as it appears on an iAM-MIX-16. The menu on the iAM-MIX-8 is very
similar. If the PRESET / CONFIG button is accidentally pressed, pressing
EXIT MENU will exit the menu and return to normal monitor operation,
unchanged. It takes about 3 seconds to exit this or any other menu.
Figure2‐7 Preset/ConfigMenu
The following describes the function and operation of each menu control
shown in Figure 2-7:
Preset Selection
Pressing the control directly below SET PRESET will display all the available
Presets by name. The current Preset will be highlighted in reverse video.
Press it to exit the menu with no changes. To select a new Preset, press the
control corresponding to the name of the Preset you choose. It will take
approximately 3 seconds to recall the Preset, and then the Channel Strip will
return to its normal indications.
Current Version
Pressing VERSION AND SN shows the software revision and serial number.
Press EXIT MENU to return to normal monitor operation when you are
finished reading this information.
Current IP Address
Pressing SHOW IP ADDR displays the IP Address currently set. Press EXIT
MENU to return to normal monitor operation when you are finished reading
this information.
Reset IP Address
Pressing RESET IP ADDR can change the network address of the iAM-MIX to
factory default (172.27.2.2). A message will ask to confirm: RESET IP? NO
-or- RESET IP? YES. Consider the questions carefully. If you are not sure
whether you really want to reset the IP address, press RESET IP? NOor EXIT
MENU to return to normal monitor operation.

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Loading Presets from Another iAM-MIX
Pressing GET USB CONFIGS allows the unit to read Presets saved from
another iAM-MIX to a USB flash drive. This allows you to easily set up
several iAM-MIX units exactly the same way. Press RDUSB YES to proceed,
and then follow the prompts that will appear on the display. Press RDUSB
NOor EXIT MENU to cancel and return to normal monitor operation.
Setting DHCP or a Static IP Address
Pressing SET IP METHOD proceeds to a menu where you can choose
whether the iAM-MIX will use a dynamic DHCP or a static IP address. Press
either SET DHCP or SET STATIC. If you are not sure which to choose, consult
with your IT specialist. To exit without making any changes, press EXIT
MENU to return to normal monitor operation.

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CHAPTER 3: Technical Info
Table3–1:iAM‐MIXSpecifications
Specification Values/Domains
Power Requirements 100 V to 240 V AC ± 10%, 50/60Hz
Power Consumption 40 Watts
Dimensions
(H x W x D)
1.75” x 19” x 7.5
”
(44mm x 483mm x 191mm)
Weight 8 lbs. (3.6 kg)
Supplied Accessories Power Adapter, AC Power Cord
Display Type Passive Matrix OLED
Number o
f
Displays 9 or 16
Screen Resolution 64H x 32V
Sample Rate 48kHz
De-Multiplexing
16 channels from:
16-channel SD/HD/3G-SDI
64-channel AES10 MADI
SDI Inputs / Outputs
• 1 or 2 SDI Inputs or Outputs
Optional – Single SFP Transceiver:
•HD-BNC Coax 3G/HD/SD-SDI
•Multi-Mode Fiber: 1 SI Optical
SC-Connector, 1300nm
Sin
g
le-Mode Fiber: 1 SI O
p
tical SC Connector, 1310nm
MADI Inputs / Outputs
• 1 MADI BNC, Standard Coax I/O
Optional – SFP Transceiver:
•Multi-Mode Fiber: 1 MADI Optical
SC-Connector, 1300nm
Sin
g
le-Mode Fiber: 1 MADI O
p
tical SC Connector, 1310nm
Analog Inputs / Outputs
8 Balanced Analog Inputs on DB-25 are standard with
every unit.
2 Balanced Analog Outputs of monitored signal on XLR are
standard with every unit.
AES Inputs / Outputs
Inputs: 8 AES channels on 4 BNC are optional
Output: 2 AES channels of monitored signal on 1 BNC is
optional
Audio over IP Input /
Output
Ethernet AoIP I/O accepts either an optional
Dante/AES67 capable signal, or
Ravenna/AES67 signal
Cable/Fiber Length (max)
COAX (such as Belden 1694A): > 150 m
Multi-mode fiber: 1 km
Single-mode fiber: 10 km

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Specification Values/Domains
SDI Input Termination 75Ωunbalanced
AES/EBU Input Termination 75Ωunbalanced
Analog Input Impedance 40kΩbalanced
AES/EBU/MADI Sampling
Rate 48 kHz
Analog Outputs-Stereo XLR-3 Male, balanced +24dBu max
Analog Output Frequency
Response 40 Hz to 20 kHz (± 1dB)
Analog Output Distortion
<0.01% THD+N
Analog Output Dynamic
Range
>100 dB
Analog Output Reference
Level
-20 dBFS = +4 ± 1.0 dBu
Internal Speakers - Stereo 40mm Full Range
Peak Acoustic Output 90dBA SPL (@ 2 feet)
Power Output 4 Watts RMS, 8 Watts peak (each side)
Acoustic Frequency
Response 150 Hz to 16 kHz (± 5 dB)
Headphone Out - Stereo 40 Hz to 20 kHz (± 1dB)
Headphone Load 8Ωto 150Ω

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Figure3–1:iAM‐MIXBlockDiagram

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CHAPTER 4: Using the iAM-MIX Web GUI
The iAM-MIX Web GUI allows you to customize the monitor’s configuration to
suit your needs. The default Presets configure the channels of each source in
a consecutive fashion. If the default configuration of the iAM-MIX suits your
needs and you prefer to use it that way, then you do not need to use the
iAM-MIX Web GUI.
Web Browser / Control Device
Any web browser application running on any networked device such as
desktop or laptop computer, tablet or smart phone can be used with the
iAM-MIX Web GUI.
Tablets would need to be linked to a copper LAN through a Wi-Fi adapter if
the tablet has no network connector.
Phones are not recommended due to their smaller screen size that will
require more scrolling.
The Chrome®web browser is recommended for speed and compatibility.
First Time- IP Assignments
The iAM-MIX can operate with a static (fixed) or dynamic (DHCP) IPv4
address. The address will be 172.27.2.2 when received from the factory or
when switched from DHCP to static addressing mode. There are two basic
types of connections that may be used to connect the iAM-MIX to a web
browser, a Peer-to-Peer Connection or a Network Connection.
Peer-to-Peer Connection
The most straightforward way to connect the iAM-MIX to a web browser,
free of possible network conflicts, is to establish a static peer-to-peer
connection between the setup computer and the iAM-MIX. A 10/100/1000
MHz Ethernet switch may be used in between, but is not required.
Figure 4-1 shows an example of suitable address settings for the host
computer in a Windows 7 control panel.