Avid Technology Mbox Pro User guide

®
Mbox Pro User Guide
Legal Notices
©2012 Avid Technology, Inc., (“Avid”), all rights reserved. This
guide may not be duplicated in whole or in part without the
written permission of Avid.
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Contents
Chapter 1. Welcome to Mbox Pro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Mbox Pro Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
System Requirements and Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Conventions Used in This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
About www.avid.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 2. Mbox Pro Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mbox Pro Front Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mbox Pro Back Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 3. Installing and Connecting Mbox Pro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 4. Making Studio Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Connecting Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Audio Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connecting a Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Connecting Instruments to the Mbox Pro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Connecting Keyboards and Mixers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Connecting Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Connecting Digital I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
MIDI Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Word Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Using a Footswitch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Chapter 5. Using the Driver Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
About . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Stereo Mix Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Presets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Contents
iii
Chapter 6. Using the Multi Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Using the Multi Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Press and Release Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Press and Hold Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Hold Duration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Appendix A. Using CoreAudio- and ASIO-Compliant Applications . . . . . . . . . . . . . . . . . . . . 45
Configuring Mbox Pro for Third-Party Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Configuring the Apple Sound Preferences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Appendix B. Compliance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Environmental Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
EMC (Electromagnetic Compliance) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Safety Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
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Avid Mbox Pro User Guide
Chapter 1: Welcome to Mbox Pro
Welcome to the Mbox® Pro FireWire audio and
MIDI interface from Avid®.
Mbox Pro provides your FireWire-equipped computer with six channels of analog audio input, six
channels of analog audio output, two channels of
S/PDIF digital audio input and output, MIDI and
Word Clock I/O, and two front panel headphone
outputs with independent level controls. Mbox Pro
provides professional-quality mic preamps and
24-bit/192 kHz analog-to-digital and digital-toanalog converters.
Mbox Pro integrates with Pro Tools® software, and
is compatible with third-party audio and MIDI
applications that support the CoreAudio (Mac) or
ASIO (Windows) standard.
Mbox Pro Features
The Mbox Pro provides the following:
Audio Inputs and Outputs
Mbox Pro provides up to eight discrete channels of
input and up to eight discrete channels of output,
using the following analog and digital I/O:
Analog Inputs
• Two channels of analog audio input with high
quality microphone preamps (inputs 1–2). Each
input channel 1–2 provides:
• 48v Phantom Power and inserts
• Two XLR/TRS (Mic/DI) combo connectors
on the front panel, and two 1/4-inch TRS Line
connectors with switchable +4/-10 input level
on the rear panel
• Mic preamps feature a –20 dB pad and softlimit switch separately on each analog input
channel
• Mic/DI signal is adjusted by the Gain knob
for each channel
Chapter 1: Welcome to Mbox Pro
1
• Two additional channels of analog audio input
with high quality microphone preamps. Each
input channel 3–4 provides:
MIDI
• One MIDI In and one MIDI Out port, providing
16 channels of MIDI input and output
• 48v Phantom Power and inserts
• Analog input jacks include two XLR Mic
connectors on the rear panel, and two 1/4inch TRS Line connectors with switchable
+4/-10 input level also on the rear panel
Other Capabilities and
Specifications
• Mic preamps feature a –20 dB pad and softlimit switch separately on each analog input
channel
• Low latency direct record monitoring
• Mic signal is adjusted by the Gain knob for
each channel
• Two 1/4-inch (TRS) stereo headphone outputs
(A and B) with independently adjustable level
and routing controls
• Two channels of analog audio input via RCA or
1/8-inch connectors (Aux 5/6). Each input channel provides:
• Analog input jacks provide an unbalanced
line input on either RCA connectors or a 1/8inch mini stereo connector (common for connecting most MP3 players)
• Inputs are fully functioning inputs to
Pro Tools as well as providing an alternate
monitor source using the Speaker button
Analog Outputs
• Six balanced 1/4-inch TRS analog outputs,
supporting line level outputs, multiple stereo
monitors, or up to 5.1 surround monitoring
• Insert jacks (1–4) for inserting external
processing devices on input channels
• 24-bit A/D and D/A converters, supporting
sample rates of 44.1 kHz, 48 kHz, 88.2 kHz,
96 kHz, 176.4 kHz, and 192 kHz
Digital I/O
• Two channels of S/PDIF digital input and output. S/PDIF inputs are available independent of
and in addition to analog inputs 1–6. S/PDIF
outputs are always available in Pro Tools
2
Avid Mbox Pro User Guide
• Front panel “Multi” button, assignable to a
variety of common Pro Tools functions
• On-board tuner
• Control room functionality including front panel
Dim/Mute, Mono and Speaker/Source switches
• Footswitch jack for starting or stopping playback or punching in and out while recording
• Multi-pin port (DB15 connection) that handles
Word Clock, MIDI, and S/PDIF via included
breakout cable
System Requirements and
Compatibility
Conventions Used in This
Guide
Mbox Pro can be used with a qualified Windows
or Mac computer running Pro Tools software 8.0.4
or higher.
All of our guides use the following conventions to
indicate menu choices and key commands:
For Pro Tools installation instructions, see
the Pro Tools Installation Guide.
Mbox Pro can be also be used with a qualified Mac
or Windows computer running any other Core Audio- or ASIO-compliant software.
Mbox Pro hardware drivers must be installed before you can connect and use your Mbox Pro.
For Mbox hardware drivers installation instructions, see Chapter 3, “Installing and
Connecting Mbox Pro.”
A DVD drive is required to use the Drivers Installer disc (included with your Pro Tools software
package).
Avid can only assure compatibility and provide
support for hardware and software it has tested and
approved.
For complete system requirements and a list of
qualified computers, operating systems, hard
drives, and third-party devices, visit:
www.avid.com/compatibility
:
Convention
Action
File > Save
Choose Save from the
File menu
Control+N
Hold down the Control key
and press the N key
Control-click
Hold down the Control key
and click the mouse button
Right-click
Click with the right
mouse button
The names of Commands, Options, and Settings
that appear on-screen are in a different font.
The following symbols are used to highlight
important information:
User Tips are helpful hints for getting the
most from your system.
Important Notices include information that
could affect your data or the performance of
your system.
Shortcuts show you useful keyboard or mouse
shortcuts.
Cross References point to related sections in
this guide and other Pro Tools guides.
Chapter 1: Welcome to Mbox Pro
3
About www.avid.com
The Avid website (www.avid.com) is your best
online source for information to help you get the
most out of your Pro Tools system. The following
are just a few of the services and features available.
Product Registration Register your purchase
online.
Support and Downloads Contact Avid Customer
Success (technical support); download software
updates and the latest online manuals; browse the
Compatibility documents for system requirements;
search the online Knowledge Base or join the
worldwide Pro Tools community on the User Conference.
Training and Education Study on your own using
courses available online or find out how you can
learn in a classroom setting at a certified Pro Tools
training center.
Products and Developers Learn about Avid
products; download demo software or learn about
our Development Partners and their plug-ins, applications, and hardware.
News and Events Get the latest news from Avid or
sign up for a Pro Tools demo.
4
Avid Mbox Pro User Guide
Chapter 2: Mbox Pro Hardware Overview
Mbox Pro Front Panel Features
Figure 1 identifies controls, indicators, and input and output ports on the front panel on the Mbox Pro.
Input combo jacks
Gain/–20 dB
Pad switch
Headphones A and B Volume knob
Dim/Mute
Gain/–20 dB Pad switches
switch
Multi button
Soft
limit
switches
Soft
limit
switch
Front/Back
input source
switch
Front/Back
input source
switch
48V switch
LED ladders
(inputs 1 - 4)
Power indicator LED
Mono
switch
Headphone
outputs
Master Volume
knob
Speaker source
select button
Mic/Line
input source button
Figure 1. Mbox Pro front panel
Input Combo Jacks (Mic/DI)
These combination jacks (Mic/DI) provide XLR
and 1/4-inch (TS) inputs for Input channels 1
and 2.
Gain/–20 dB Pad Switches
These knobs adjust the input gain levels of Mic/DI
1 and 2, or Mic 3 and 4. Turn the knob clockwise to
increase gain, and counter-clockwise to decrease
gain.
If your input signal is too hot even with the Gain
knob at a low setting, pull the Gain knob out to engage a “pad” that attenuates the signal by –20dB.
Front/Rear Input Source
Switches
These buttons select the input source for input
channels 1 and 2. When “out”, the front panel
Mic/DI input is active; when “in” the back panel
Line Input is active for that channel.
Chapter 2: Mbox Pro Hardware Overview
5
Soft Limit Switch
These switches engage a soft limiter on that channel, applying a smooth, overdriven tape-type limiter to strong input signals.
Mic/Line Input Source Button
These buttons select the input source for input
channels 3 and 4. When “out”, the back panel Mic
input is active; when “in” the back panel Line Input is active for that channel.
LED Ladders (Inputs 1–4)
These four 8-segment LED ladder-style meters illuminate green in the presence of audio signal, and
illuminate red when the signal is about to clip
(overload) the input. The LEDs are associated with
signals routed from inputs 1–4.
48V Switch and LED (Phantom
Power)
The 48V switch toggles phantom power on/off for
all mic input channels. The LED, when lit, indicates that 48V phantom power is active on the
XLR Mic inputs.
When using phantom power, the Mbox Pro
maximum current per microphone is 10 mA.
If you are not sure about the phantom power requirements for your microphone, refer to your microphone’s documentation or contact the manufacturer.
Master Volume Knob
The Master Volume knob adjusts the output level
of the assigned Monitor output pair. The Master
Volume knob is assigned to an output pair (1–2,
3–4, or 5–6) in the Control Panel. See “Master
Vol” on page 31.
Dim/Mute Switch
The Dim/Mute switch affects the output volume
for control room outputs as assigned in the Driver
Control Panel setup (by default, Line outputs 1 and
2.) See “Control Room Assignment” on page 31.
The switch has two functions:

When pushed, Line outputs 1 and 2 (or the currently assigned Control Room outputs) are
dimmed. When Dim is engaged, the switch
LED lights solid.

When pushed and held in, Line outputs 1 and 2
(or the currently assigned Control Room outputs) are muted. When Mute is engaged, the
switch LED flashes.
About Phantom Power
Most condenser microphones require phantom
power to operate. Dynamic microphones do not require phantom power to operate, but are not
harmed by it.
Although phantom power can be used safely
with most microphones, it is possible to damage some ribbon microphones with it. Always
turn off phantom power and wait at least ten
seconds before connecting or disconnecting
a ribbon microphone.
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Avid Mbox Pro User Guide
Mono Switch
The Mono Button sums the control room outputs
to a mono signal (delivering that identical signal to
both speakers) via the Driver Control Panel or the
Mbox Pro. When engaged, the Mono LED lights.
Spkr (Speaker) Button
You can assign Monitor outputs pairs to the
Speaker button and cycle through the pairs as configured in the Control Panel (see Chapter 5, “Using
the Driver Control Panel” and “Control Room Assignment” on page 31). This is useful for A/B-ing
your mix between different studio monitors.
Headphone A and B Volume
Knobs
The Headphone knobs adjust the output level of
their corresponding Headphone output (A or B).
Multi Button
When pressed and held, it sources Aux inputs 5–6,
letting you can switch between monitoring playback from your audio application and monitoring
an external source (such a CD player) connected to
Aux inputs 5–6.
The Multi button can be assigned to execute several functions in Pro Tools, including
Track Create, Start/stop Record, Tap Tempo, Toggle Marker Locations, and Save Session. For detailed information, see Chapter 6, “Using the Multi
Button.”
Headphone Outputs
Power Indicator LED
Use the A and B, front panel Headphone outputs to
connect stereo headphones with a 1/4-inch stereo
connector. Headphone output A mirrors Monitor
outputs 1–2 by default. Sources for the Headphone
outputs can be configured in the Control Panel. See
“Stereo Mix Section” on page 32.
The Power LED indicates that the Mbox Pro is receiving power from its power supply. Once the
light is on, audio can pass in or out of the system. If
the light is flashing, the power is not correct or
clock is not locked.
Chapter 2: Mbox Pro Hardware Overview
7
Mbox Pro Back Panel Features
Figure 2 identifies each port on the back panel of the Mbox Pro.
Aux inputs 5/6
(RCAs and 1/8-inch mini)
Power input jack
Power switch
Foot switch
Monitor outputs
Line inputs
Insert jacks
Mic inputs
FireWire ports
Word clock, MIDI
S/PDIF connector
+4/–10 switches
Figure 2. Mbox Pro back panel
Mic Inputs
Monitor Outputs
These two jacks provide XLR inputs for Input
channels 3 and 4. The Mic signal is adjusted by the
each channel’s Gain knob on the front panel.
There are six balanced 1/4-inch TRS analog outputs that support line level outputs, multiple stereo
monitors, or up to 5.1 surround monitoring. For
more information on configuring stereo and surround monitoring in the Driver Control Panel, see
“Output Setup” on page 30.
Insert Jacks
Use these 1/4-inch TRS jacks to patch (or “insert”)
an external analog effect such as a compressor or
limiter onto the input signal, between the preamp
and the A/D converter. Any inserted effects affect
the recorded signal.
These inserts are only active when a connector is
inserted, and are otherwise bypassed. The TRS
jack is configured as follows: Tip=Send; Ring=Return; Sleeve=Ground.
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Avid Mbox Pro User Guide
Line Inputs
There are four TRS balanced analog Line inputs on
the back panel for Input channels 1–4. For input
channels 1–2, Line inputs are selected using the 01
and 02 Front/Rear switch on the front panel (set to
“Rear”). For inputs 3–4, Line inputs are selected
using the 03 and 04 Mic/Line switches on the front
panel (set to “Line”). Mic inputs are selected using
the 03 and 04 Mic/Line (set to “Mic”).
+4/–10 Switches
These switches let you select +4 or –10 input operating levels for Line Input channels 1–2 and/or
3–4. When “out” the level is set to +4 and when
“in” it is set to –10.
If the device you are connecting to any of
these inputs has unbalanced outputs (or you
are using an unbalanced TS cable), set the
line input switch to -10. For balanced outputs
(using balanced TRS cables), set the switch to
+4. Refer to your device’s documentation.
Word Clock, MIDI, S/PDIF
Connector
The DB15 connection that handles Word Clock,
MIDI, and S/PDIF is a multi-pin port where you
plug in a breakout cable (included). On the opposite end of the cable you can connect to Word
Clock, MIDI, and S/PDIF devices.
Aux Inputs 5–6
The RCA jacks and the 1/8-inch mini are all part of
Aux input 5/6.
Use the RCA jacks for line-level devices like
CD players or mixers.
Breakout cable

Use the 1/8-inch mini to connect line-level
sources such as MP3 players with an 1/8-inch stereo connector.

Foot Switch Connector
FireWire Ports
The footswitch connector on Mbox Pro lets you
use a footswitch to control either playback
start/stop or recording punch in/out. Both QuickPunch audio punch-in and punch-out and MIDI
punch-in and punch-out recording are supported.
These standard FireWire 1394 connectors are used
to connect your computer to Mbox Pro. The
Mbox Pro cannot be powered solely through its
1394 connection to your computer. The Mbox Pro
requires the power supply to function.
The footswitch connector is designed specifically
for instantaneous (momentary) on/off pedals with
a 1/4-inch TS connector. Continuous on/continuous off pedals can also be used, but may result in
unexpected behavior.
Power Input Jack
This port supplies power to Mbox Pro using the included power supply. The Mbox Pro requires the
power supply to function. For stand-alone mode
you power on the unit with a power connection and
no FireWire connection.
Power Switch
This button is used to turn Mbox Pro on or off.
Chapter 2: Mbox Pro Hardware Overview
9
10
Avid Mbox Pro User Guide
Chapter 3: Installing and Connecting
Mbox Pro
To use Mbox Pro with Pro Tools or any other
CoreAudio- or ASIO-compatible applications, you
must install the Mbox Pro hardware drivers on
your computer.
This chapter provides instructions on installing the
drivers on Mac and Windows, and connecting the
Mbox Pro to your computer.
Do not start this procedure with your Mbox
connected to your computer.
Before installing the hardware drivers, refer
to the Read Me information included with the
drivers installer for your device.
3
• On Mac, locate and double-click
Avid Mbox Pro.mpkg.
– or –
• On Windows, locate and double-click
Install Avid Mbox Pro.exe.
4
Follow the on-screen instructions to proceed
with installation.
5
When installation is complete, restart your computer.
6
After the computer has restarted, connect one
end of the provided FireWire cable to the
FireWire port on Mbox Pro. Connect the other
end of the cable to any available FireWire port
on your computer.
7
Connect the power cable and turn on the
Mbox Pro using the power switch on the back.
Then follow the remaining on-screen instructions to complete installation.
To install the drivers and connect the Mbox Pro:
1
Make sure you are logged in as an Administrator for the account where you want to install the
drivers.
For details on Administrator privileges, see
the documentation for your computer.
2
Download the Mbox Pro drivers installer for
your computer platform from
www.avid.com/drivers. After downloading,
make sure the installer is uncompressed (.dmg
on Mac or .ZIP on Windows).
Do one of the following:
You can now use your Mbox Pro with Pro Tools,
or with any other CoreAudio- or ASIO-compatible
application.
For Pro Tools installation instructions, see
the Pro Tools Installation Guide.
Chapter 3: Installing and Connecting Mbox Pro
11
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Avid Mbox Pro User Guide
Chapter 4: Making Studio Connections
This chapter provides step-by-step instructions for
connecting mics, instruments, mixers, headphones, speakers, and other devices to Mbox Pro.
To connect headphones:
1
Connect headphones with a 1/4-inch stereo connector (or adapter) to the Headphone outputs A
or B.
Connecting Outputs
2
Adjust the volume using the corresponding
Headphone Volume knob on the front panel.
To hear audio from Mbox Pro, you will need to
connect headphones or an external sound system
(such as powered monitors or a home stereo) to
Mbox Pro.
Connecting Headphones
You can use headphones equipped with a 1/4-inch
stereo jack to monitor your audio.
Headphone level (A, B)
By default, Headphone output A mirrors Monitor
output channels 1–2.
You can create independent stereo mixes for
each headphone output in the Driver Control
Panel. See “Stereo Mix Section” on page 32.
Do not use the front panel headphone outputs
for anything but headphones. If you use a
headphone distribution amp or cue system,
use any of the six Monitor outputs on the back
panel. See “Monitor Outputs 1–6” on
page 14.
1/4-inch
Headphone outputs (A, B)
Headphone jacks and controls on front of Mbox Pro
Chapter 4: Making Studio Connections
13
Connecting a Sound System
The default monitor outputs on the back of the
Mbox Pro (Monitor outputs 1 and 2) support 1/4inch plugs. These connections can be balanced
TRS (Tip-Ring-Sleeve) connectors, or unbalanced
TS (Tip-Sleeve) connectors such as those on instrument cables. To listen to your to audio, connect
these outputs to any amplification system: powered speakers, a home stereo system, or an audio
mixer.
Monitor outputs 1–6
To connect to a stereo system:

When connecting to a stereo system, connect
the left channel of the stereo (often the white
plug) to Monitor output 1, and the right channel
of the stereo (often the red plug) to
Monitor output 2.
Home stereo systems often use RCA connectors. You can use an adaptor or a special cable to convert from the 1/4-inch TRS (TipRing-Sleeve) connectors used by Mbox Pro to
the RCA connectors on your home stereo.
Monitor Outputs 1–6
Monitor outputs 1–6 can be connected to any device that has analog inputs. Use these six balanced
1/4-inch TRS outputs to feed analog devices such
as headphone amps or cue systems for discrete
headphone mixes, samplers, or a secondary recorder.
Line Out connectors for monitors on Mbox Pro
There are other use for Monitor outputs, such as:
To connect to a sound system:
• Stereo main monitors (Monitor outputs 1–2)

For stereo monitoring, connect Monitor outputs
1 and 2 to the inputs of your main left and right
speakers. You can hook up more than one set of
stereo speakers and switch between them
(Speaker A, B, C switching). See “Output
Setup” on page 30.
Mbox Pro is capable of 5.1 surround monitoring complete with custom configuration
and routing controls. For more information,
see “Output Setup” on page 30.
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Avid Mbox Pro User Guide
• Stereo/Alt monitors (Monitor outputs 3–4)
• Surround (Monitor outputs 1–6),
To connect additional Mbox Pro outputs:

Using 1/4-inch TRS cables, connect any of the
Line Out (1–6) connectors on the back panel to
the inputs of your external devices.
See the Pro Tools Reference Guide for information on signal routing, sends and bussing.
Audio Inputs
Mbox Pro provides six channels of analog inputs,
and supports microphones, guitars, keyboards, and
other types of instruments and devices.
For information about connecting specific audio
sources, see “Connecting a Microphone” on
page 16, and “Connecting Instruments to the
Mbox Pro” on page 18.
Mic Inputs 3–4/Line Inputs 3–4
The back-panel Mic inputs 3–4 provide two dedicated XLR connectors for Input channels 3 and 4.
Toggle each channel’s Front/Rear input source
switch to switch between the XLR input and 1/4inch TRS Line Input located on the back panel.
When the switch is in the “out” position, the Mic
input is active; when “in” the Line Input is active
for that channel.
01, 02, 03, 04
Aux Inputs 5–6
The Aux inputs 5–6 section provide dual-mono
RCA jacks or a single 1/8-inch stereo jack for Aux
input channels 5 and 6.
If the 1/8-inch jack and the RCA jacks are both
connected, the 1/8-inch jack takes precedence over
the RCA jacks.
Aux inputs 5/6
(and 1/8-inch)
Input channels on the front/back of Mbox Pro
Mic/DI Inputs 1–2/Line Inputs 1–2
The front-panel Mic/DI inputs 1–2 provide combination XLR (Mic) or a 1/4-inch (DI) jacks for Input channels 1 and 2.
Use these inputs to connect line-level sources such
as mixers, CD or DVD players, or MP3 players.
You can monitor Aux input 5–6 through the
designated control room output by pressing
and holding the front-panel Spkr button. To
configure control room settings, see “Control
Room Assignment” on page 31.
Toggle each channel’s Front/Rear input source
switch to switch between the front-panel Mic/DI
input and the 1/4-inch TRS Line Input located on
the back panel.
When the switch is in the “out” position, the front
panel Mic/DI input is active; when “in” the rear
Line Input is active.
Chapter 4: Making Studio Connections
15
Connecting a Microphone
Mic Cables and Connectors
Use a microphone with an XLR connector to connect the microphone to the Mbox Pro.
The Mbox Pro can only supply phantom power
through a microphone cable with an XLR connector. If you are not sure about the phantom power
requirements for your microphone, refer to your
microphone’s documentation or contact the manufacturer.
The Mbox Pro can only supply phantom power
through a microphone cable with XLR connectors.
If you are not sure about the phantom power requirements for your microphone, refer to your microphone’s documentation or contact the manufacturer.
Using a Mic with an XLR
Connector (Input Channels 1–2)
To use a microphone with an XLR connector:
1
Plug your microphone cable into one of the two
Mic/DI inputs on the front of Mbox Pro (in this
example, input 2).
Input 1
Mic input
Mic/DI input 2
XLR connector
Phantom Power (48V)
Some microphones require power to operate. This
power, called phantom power, is supplied either by
a battery in the microphone, or through an audio
interface (such as Mbox Pro) that can supply
power through the microphone cable.
Most condenser microphones (such as an
M-Audio Solaris) require phantom power to operate. Dynamic microphones (such as a Shure SM57)
do not require phantom power to operate, but are
not harmed by it.
Phantom power can be used safely with most
microphones. However, it is possible to damage ribbon microphones with it. Always turn
off phantom power and wait at least ten seconds before connecting a ribbon microphone.
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Avid Mbox Pro User Guide
XLR connector plugged into Input 2 (Mic/DI combo
jack)
2
Set the input source to Mic/DI (microphone) by
pressing the Front/Rear switch for channel 2 to
the “out” position. (When the button is set to the
“out” position, the front panel, combo Mic/DI
inputs will be active. When the button is set to
the “in” position, the back panel Line inputs
will be active.)
Front/Rear switches
Front/Rear switches for Mic/DI combo jacks
3
If your microphone requires phantom power,
make sure the microphone is connected, then
press the Phantom Power switch (labeled 48V)
on the front of the Mbox Pro. This switch sends
48V to all four mic inputs. The 48V LED on the
front of the Mbox Pro lights when phantom
power is engaged.
Using a Mic with an XLR
Connector (Input Channels 3–4)
To use a microphone with an XLR connector:
1
Mic input 3
48V (Phantom Power)
Phantom Power switch
4
XLR connector plugged into Mic Input 3 (XLR jack)
On the front of the Mbox Pro, turn the master
volume knob to the desired level.
Gain knob
Plug your microphone cable into one of the two
Mic inputs (XLR) on the back of Mbox Pro (In
this example, Input 3).
Master volume knob
Gain knob for Input 1 (Master volume knob shown)
5
On the front of the Mbox Pro, carefully turn the
Gain knob to the right to increase the input level
of your microphone signal.
6
If the incoming signal is too loud, press the
Push/Pull knob to engage the –20 dB pad.
2
There are two Mic inputs (XLR) on the back
panel, (Input 3 and 4). On the front panel, set the
Mic/Line input switch for channel 3 to the “out”
position (microphone).
Use the corresponding back panel inputs
(marked Line Input 3 and Line Input 4) on the
back when working with line-level signals. In
that case, set the Mic/Line input switch for
channel 3 to the “in” position (line).
Mic/Line switches
Mic/Line switches for Mic/DI combo jacks
–20 dB Pad
Input 2 Pad
Chapter 4: Making Studio Connections
17
3
If your microphone requires phantom power,
make sure the microphone is connected, then
press the Phantom Power switch (labeled 48V)
on the front of the Mbox Pro. This switch sends
48V to all four inputs. The 48V LED on the
front of the Mbox Pro will light when phantom
power is being supplied.
Connecting Instruments to
the Mbox Pro
Mbox Pro provides three input types (DI, Line,
and Aux In) for instruments.
DI Input (Front Panel) Use the front-panel DI
(“Direct Inject”) inputs for instruments such as
electric guitar, electric bass, or other instruments
that use pickups.
Line Inputs (Back Panel) Use the back-panel 1/4-
48V (Phantom Power)
inch Line inputs for line-level devices, including
electronic audio sources such as mixers, samplers,
keyboards, and synthesizers.
Phantom Power switch
4
On the front of the Mbox Pro, turn the master
volume knob to the desired level.
Gain knob
Master volume knob
Aux 5/6 (Back Panel) Use the back-panel RCA
jacks or the 1/8-inch stereo jack for line-level devices such as a CD players or MP3 players.
Connecting Electric Guitar or Bass
To use a guitar with Mbox Pro:
1
Gain knob for Input 3 (Master volume knob shown)
5
On the front of the Mbox Pro, carefully turn the
Gain knob to the right to increase the input level
of your microphone signal.
6
If the incoming signal is too loud, press the
Push/Pull knob to the “out” position to engage
the –20 dB pad.
On the front of the Mbox Pro, plug your guitar
or bass cable into one of the Mic/DI inputs.
Connecting guitar to the Mic/DI 1 connector
2
On the front of the Mbox Pro, make sure the
Front/Rear switch for Mic/DI 1 is in the “out”
position.
3
On the front of the Mbox Pro, turn the master
volume knob to the desired level.
–20 dB Pad
Input 3 Pad
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Avid Mbox Pro User Guide
4
On the front of the Mbox Pro, carefully turn the
Gain control knob to the right to increase the input level of your guitar.
To use Aux Input 5/6 Line inputs:
You can tune your guitar using the on-board
tuner from the front panel of the Mbox Pro.
Hold down the Mono and Dim buttons to
launch the tuner in the Driver Control Panel.
See “Setup” on page 26.
Connecting DJ Equipment

To use the Aux Inputs 5/6:

To use a keyboard or mixer with Mbox Pro:
Plug your keyboard (with line outputs), mixer,
or other audio source into any one of the four
Line Input channels on the back of the
Mbox Pro. If your source is stereo (such as a
stereo keyboard or the stereo output from a
mixer), connect the left channel (often the white
plug) to Input 1, and right channel (often the red
plug) to Input 2.
If your keyboard has unbalanced outputs, set
the line input switch to -10 instead of +4. Refer to your keyboard’s documentation.
2
On the front of the Mbox Pro, set the Front/Rear
switch to Rear or Mic/Line switch to Line (that
corresponds to your channel).
3
On the front of the Mbox Pro, turn the master
volume knob to the desired level.
4
Set your instrument’s volume to its optimal
level. For example, the optimal level for most
keyboards is between 80% and 100% of maximum volume.
5
On the rear panel of the Mbox Pro, use the Input
Level switch for +4/–10 input line level settings
(one for each stereo pair, 1/2 & 3/4). In the “out”
position the level is set to +4; and when pushed
to the “in” position, it is set to (–10).
Plug your DJ mixer, DVD player, or similar outputs into the Aux Input 5/6 inputs (L and R).
There is no RIAA preamp or grounding post
on the Mbox Pro, so connect a turntable to a
mixer or phono preamp before connecting to
Mbox Pro.
Connecting Keyboards and
Mixers
1
Plug your keyboard, mixer or other line level
device into the Aux Input 5/6 inputs (L and R).
For Aux inputs 5/6, the 1/8-inch jack takes
precedence over the RCA jacks.
Connecting Inserts
Mbox Pro provides a total of four insert jacks (Inserts 1–4) for inserting external processing devices
such as an EQ or a compressor between the input
channel’s onboard mic preamp and the onboard
analog to digital convertor.
Inserts 1–4
Insert jacks for external processing on Mbox Pro
To insert an external processor on an input:
1
Using a 1/4-inch insert cable (single TRS connector to dual TS connectors), connect the single TRS connector (the connector with two
rings) to one of the insert jacks on your
Mbox Pro.
Chapter 4: Making Studio Connections
19
2
Connect the dual TS connectors (the “Y” end of
the cable) to the external processor as follows:
• Connect the TS connector that corresponds to
the tip (send) on the TRS connector to the input of the processor.
• Connect the other TS connector that corresponds to the ring (return) on the TRS connector to the output of the processor.
Connecting Digital Devices
To connect Mbox Pro to an external digital device:
1
Using the included breakout cable, connect it to
the Word Clock, MIDI, and S/PDIF input on the
back panel of the Mbox Pro.
2
Using RCA (coaxial) cables, connect the
Mbox Pro S/PDIF In to the S/PDIF output of
the device.
Use 75 ohm RCA cables (the standard for
digital audio) as other cables (such as home
stereo cables) may have problems.
Dual TS
connector
Single TRS
connector
3
Connect the Mbox Pro S/PDIF Out to the
S/PDIF input of the external device.
4
Be sure to read the next section for important information.
Insert cable
Connecting Digital I/O
Mbox Pro provides digital inputs and outputs for
S/PDIF-format digital audio. S/PDIF digital I/O
can be used in combination with analog I/O, and
are independently routable.
Using S/PDIF Input
If you are using Pro Tools, use the Hardware Setup
dialog in Pro Tools.
If you are using the S/PDIF input on Mbox with a
third-party CoreAudio-or ASIO-compliant application, use the Mbox Control Panel to configure
the input. See “General Setup” on page 26.
Mbox Pro supports external sync at sample
rates of up to 192 kHz.
Multi-pin port for breakout cable input
Word Clock, MIDI, and S/PDIF input on Mbox Pro
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Avid Mbox Pro User Guide
S/PDIF inputs on Mbox Pro can sync to an
external Word clock. See “Word Clock” on
page 22 for configuration information.
To enable S/PDIF when using Pro Tools:
1
2
Make sure your have connected the external
digital device to the correct Mbox Pro S/PDIF
connector (In and Out).
Make sure the external device is powered on,
that it is set to the correct sample rate, and that it
is configured to provide S/PDIF clock (if relevant to your device).
3
Launch Pro Tools.
4
Choose Hardware > Setup.
5
Click the Clock Source pop-up menu and
choose “S/PDIF.”
MIDI Connections
Two MIDI ports become available when you connect the provided breakout cable into the
Word Clock, MIDI, and S/PDIF input on the back
panel of the Mbox Pro. See “Word Clock, MIDI,
S/PDIF Connector” on page 9.
If you need additional MIDI ports you can add a
compatible MIDI interface. USB MIDI interfaces
work effectively with Pro Tools systems on Windows or Mac.
To connect MIDI devices to Mbox Pro:
1
Using the included breakout cable, connect it to
the Word Clock, MIDI, and S/PDIF input on the
back panel of the Mbox Pro.
2
Connect the MIDI OUT of your MIDI device or
controller to the MIDI IN port on the breakout
cable.
3
Connect the MIDI IN of your MIDI device or
controller to the MIDI OUT port on the breakout cable.
Once enabled in the Hardware Setup dialog, the
S/PDIF inputs become active and will pass audio
to Mbox Pro.
To enable S/PDIF when using a third-party
application:
1
Do one of the following:
• On Mac, launch System Preferences (Apple
menu > System Preferences), then doubleclick Avid Mbox. (You can also open the
Driver Control Panel from the Applications
menu.)
• On Windows, choose Start > Control Panel >
On Mac OS X, use the Audio Midi Setup
(AMS) utility to customize the names of your
MIDI devices.
Mbox.
2
In the Control Panel, choose Setup.
3
Select S/PDIF from the Clock Source pop-up
menu.
Chapter 4: Making Studio Connections
21
Word Clock
Mbox Pro provides Word Clock In and Out connectors on the back panel that let you synchronize,
or “clock” Mbox Pro to industry standard Word
clock. Word clock is used to synchronize a wide
range of devices such as non-linear video systems
and other types of equipment typically found in
professional audio facilities.
Pro Tools as Word Clock Master
Mbox Pro Word clock output is always active, letting Pro Tools supply Word clock to any connected devices that support standard Word clock.
To use Pro Tools as Word clock master:
1
Make sure all connections are correct between
Mbox Pro and your external devices.
2
Configure all external devices to slave to the
Word clock coming from Mbox Pro. (Be sure to
verify sample rate settings, termination requirements and other internal settings for the device;
refer to the manufacturer’s documentation if
you need more information on the particular requirements for your other equipment.)
3
Launch Pro Tools.
4
Choose Hardware > Setup.
5
Click the Clock Source pop-up menu and
choose Internal.
With both Word clock input and output, your
Mbox Pro-equipped system can act as Word clock
“slave” or “master.”
Do not confuse Word clock and other forms
of “clock reference” with time code and
other forms of “positional reference.” For an
overview of synchronization terminology and
concepts, see the Pro Tools Reference guide.
Mbox Pro can synchronize to Word clock at
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4
kHz, and 192 kHz sample rates.
To connect Word clock to Mbox Pro:

Using high-quality, 75 ohm BNC cables (not included) connect the Mbox Pro Word Clock In
and Out connectors to the appropriate ports on
the other Word clock-capable devices in your
studio.
Using Word Clock with Pro Tools
Pro Tools with Mbox Pro can act as Word clock
master, or as a slave to Word clock supplied by an
external device.
Pro Tools as Word Clock Slave
In order to slave Pro Tools to an external Word
clock source, you must configure Word clock as
the Pro Tools Clock source.
To configure Pro Tools with Mbox Pro as a Word
clock slave:
1
Make sure all Word clock and audio connections are correct as described earlier in this section.
2
Make sure the external Word clock source is
powered on, and configured to output 1x Word
clock. (Be sure to verify any required termination; refer to the manufacturer’s documentation
if you need more information on the particular
requirements for your device.)
3
Launch Pro Tools.
When using third-party applications, you can
configure the Clock Source for Mbox Pro using the Control Panel. See “Clock Source”
on page 27.
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Avid Mbox Pro User Guide
4
Choose Hardware > Setup.
5
Click the Clock Source pop-up menu and
choose Word Clock.
Using a Footswitch
The footswitch connector on Mbox Pro lets you
use a footswitch pedal to control either playback
start/stop or recording punch in/out. Both QuickPunch audio punch-in and punch-out and MIDI
punch-in and punch-out recording are supported.
The footswitch connector is designed specifically
for instantaneous (momentary) on/off pedals with
a 1/4-inch TS connector. Continuous on/continuous off pedals can also be used, but may result in
unexpected behavior.
To use a footswitch control:
1
Connect a footswitch to the footswitch connector on the back panel of the Mbox Pro.
2
Launch Pro Tools.
3
Choose Setup > Hardware.
4
Select Record Punch In/Out or Playback
Start/Stop.
5
Click OK.
Chapter 4: Making Studio Connections
23
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Avid Mbox Pro User Guide
Chapter 5: Using the Driver Control Panel
The Mbox Pro Driver Control Panel lets you configure settings for your audio interface for use with
Pro Tools, as well as for other audio applications
that support the CoreAudio (Mac) or ASIO (Windows) standard.
To open the Driver Control Panel:


Several features of Mbox Pro can be accessed directly from the Mbox Pro front panel, such as input
gain, phantom power, and output levels. But there
are many additional parameters that cannot be accessed from the front panel. These additional features are available to you using the included Driver
Control Panel application.
On Mac, launch System Preferences
(Apple menu > System Preferences), then
double-click Avid Mbox Pro.
On Windows, choose Start > Control Panel >
Mbox Pro.
To open the Driver Control Panel from Pro Tools:
1
Choose Setup > Hardware in the Edit window.
2
Click launch control panel.
Mbox Pro Driver Control Panel
Chapter 5: Using the Driver Control Panel
25
Setup
Click Setup to access the General Setup and Output Setup dialogs. You can toggle between dialogs
by clicking General Setup or Output Setup.
Configure Mbox Pro hardware settings in General
Setup. For example, you can set buffer size, sample rate, and clock source. You can also define how
Mbox Pro functions when it’s connected to a computer or when it’s in standalone mode (not connected to a computer).
General Setup
General Setup options are grouped in the following
categories:
• Hardware Settings
• Soft Button Settings
• High-Pass Filter Options
• Standalone Settings
Configure your monitoring and output settings in
Output Setup. For example, you can configure up
to three stereo hardware output pairs to function as
control room outputs, which are then selectable using Mbox Pro’s Speaker button (front panel). You
can also configure the Master Volume knob to
function as the master volume control for all six
outputs simultaneously, providing a 5.1 surround
monitor master volume control.
Setup pop-up menu, General Setup mode shown
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Avid Mbox Pro User Guide
Hardware Settings
Sample Rate
This section of the Control Panel provides controls
for setting parameters on your interface when it is
connected to a computer using a FireWire cable
(called Hosted Mode).
This drop-down menu sets the sample rate of
Mbox Pro. Note that when using the interface with
an ASIO or CoreAudio application, the sample
rate can also be determined by your audio application. This parameter may not be editable from
within the Mbox Pro Control Panel if your audio
application is running. In this case, any changes to
the sample rate must be made through the audio
application itself. If the application does not provide a way to set the sample rate, quit the application, then change the sample rate through the
Mbox Pro Control Panel.
Disable Host Control
This setting lets you wrest control of the Driver
Control Panel from Pro Tools. When you launch
Pro Tools, it takes control of the Driver Control
Panel's first stereo mixer. If you want to obtain full
manual control of the Driver Control Panel, choose
this option.
If you want to use the Low Latency Monitoring option in Pro Tools, this option must not
be checked.
Clock Source
This setting determines the clock source to which
Mbox Pro is synchronized.
When the sample rate is locked to an external digital clock source, the Mbox Pro LED is solid blue.
When the sample rate is set and there is no digital
clock source detected (or cannot lock to it for some
reason), the LED will blink. (A message appears at
the bottom of the Hardware Settings section stating
that: “External clock not detected, Audio Streaming is Disabled.”).
Internal If you are using Mbox Pro by itself (for ex-
ample, without other digital devices or an external
clock), select the Internal option for the interface to
work properly
S/PDIF If you have connected a S/PDIF device to
your Mbox Pro and would like to use that device as
the master clock source, select the S/PDIF option.
This will make Mbox Pro clock to the external device’s clock.
Word Clock If you are transferring material into
Pro Tools from an external digital device, or if you
utilize a common house clock signal, you will need
to synchronize Pro Tools to that digital device or
common signal. Select the Word Clock option.
Chapter 5: Using the Driver Control Panel
27
Buffer Size (Windows only)
Soft Button Settings
This menu sets the size of the input and output buffers on Mbox Pro.
Press and Hold Duration
Buffers are used to help keep audio hardware and
software running smoothly by processing audio in
groups of samples rather than one sample at a time.
Due to variations between computer hardware and
software, it is impossible to recommend a single
optimum setting for all systems. It may be necessary to experiment with various settings until you
find the best buffer size for your system.
The goal of setting a buffer size is to reduce it as
much as possible without hearing any clicks, pops,
or other glitches. If the buffer size is too small, the
computer will not be able to make all the required
audio calculations on time and you will hear pops,
clicks, and stuttering in your audio streams. On the
other hand, if the buffer size is set too high, your
computer will process audio without incident, but
your software will feel sluggish and unresponsive.
To find your system’s optimum buffer size setting,
begin with a high setting and gradually reduce the
size until you begin to hear clicks, pops, or other
audible glitches in your audio. Then, raise the buffer size setting until these glitches disappear. You
may need to stop playing audio any time you
change this setting and certain applications will require you to re-launch the program before the new
buffer size settings become active.
This menu only appears on Windows systems.
Most Mac OS X applications allow to change
the buffer size from within the audio application itself. Please see your audio application’s user guide to learn how to change this
setting.
This pop-up menu gives you four choices of Press
and Hold duration for all soft buttons on the front
of the Mbox Pro. Choose between 250 msec, 500
msec, 750 msec, and 1 sec.
Use Dim LEDs for Button off State
Checking this option gives you a dim LED for all
the soft buttons that are off (so you can still discern
the LED in the dark).
High-Pass Filter Enable
A 75 Hz high-pass filter is available for each Input
channel 1–4. Enable the high-pass filter for the desired channel to reduce low-frequency rumble
caused by, for example, HVAC systems or microphone handling.
Driver Control Panel Options
Hold Clipping Indicators until Clicked
The top section of the meters (or right section for
horizontal meters) of the Driver Control Panel feature a red clipping indicator. When this option is
selected, the clipping indicators will remain lit until they are clicked.
Load Latency and Clock Settings from Settings
Files
When this option is selected, the clock source and
buffer settings are recalled when loading a setting
file.
Post-Fader Meters
When this option is selected, fader positions will
affect the meters. Post-Fader Meters mean the meter indicate post-fader levels.
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Avid Mbox Pro User Guide
Pre-Fader Meters
When this option is selected, the meters display the
level of a signal before it passes the fader. This allows signal levels to be displayed regardless of the
fader positions within the stereo mix (in other
words, a fader can be all the way down and no
sound will be heard from the mixer’s output, but
you can still see if there is any activity on that input).
FX Sends Mode
Pre-Fader FX Sends
When you are in standalone mode, the following
functions can be adjusted:
• Clock source
• Sample rate
• Mode
Clock Source
Clock source and sample rate settings work in the
same manner as above, it defines what the clock
source will be; internal, S/PDIF, or word clock.
The clock source can be switched from the front
panel when in standalone, using the Multi button.
When Pre-Fader FX Sends is selected, the full audio signal will be sent to the FX Sends, regardless
of the position of the Channel Faders of stereo mix
1–2.
The LED button will either be off/on/pulsing to indicate which clock source is currently assigned.
Post-Fader (Mix 1/2) FX Sends
• If the LED is on, the clock source is word clock
When Post-Fader (Mix 1/2) is selected, the audio
signal level being sent to the FX Sends will be affected by the position of the Channel Faders of Stereo Mix 1.
Standalone Settings
• If the LED if off, the clock source is internal.
• If the LED is pulsing, clock source is S/PDIF
Sample Rate
This setting assigns the sample rate when it's set to
internal clock source in standalone mode.
Mode
Standalone settings affect the setting of the
Mbox Pro when it is in standalone mode with no
host computer connected.
When you set up your standalone settings,
you must be connected to the computer.
The interface can function in the following two
modes:
Hosted Operation If there is a FireWire connection
to the computer when the Mbox Pro is first powered on, then it boots into hosted mode.
Standalone Operation If there is no FireWire connection to the computer when the Mbox Pro is first
powered on, then it boots into standalone mode.
The Mbox Pro can be in the following three types
of sub-standalone modes:
AD/DA Converter When in AD/DA mode, analog
inputs 1 and 2 are routed to S/PDIF outputs left and
right and S/PDIF inputs left and right are routed to
analog outputs 1 and 2.
Preamp When in Preamp mode, analog input 1 is
sent to analog output 1 and S/PDIF left. Analog input 2 is sent to analog output 2 and S/PDIF Right.
Analog inputs 3–6 are sent to analog outputs 3–6.
Mixer When in Mixer mode, all analog and digital
inputs are summed and routed to analog outputs 12 are mirrored to S/PDIF outputs left and right.
Chapter 5: Using the Driver Control Panel
29
Changing Sub-standalone Modes
Surround Monitor Configuration
Once you are in standalone mode you can tell
which of the three sub-standalone modes the
Mbox Pro is in and change them using the Speaker
source select switch (pushing the Speaker button
cycles through them all).
You can choose which Monitor output pairs are
controlled by Mbox Pro’s Master Volume knob.
The button displays the following colors for each
mode:
For example, if you enable Master Volume for all
three Monitor output pairs, then the Master Volume controls all of them at once. This is useful if
you are mixing in surround.
• Green in AD/DA Converter Mode
• Red in Preamp mode
• Amber in Mixer mode
Output Setup
You can configure stereo and surround monitoring
and output settings in Output Setup.
Stereo Monitor Configuration
You can assign up to three Monitor output pairs to
function as control room monitor pairs. Pressing
front-panel Speaker button cycles through the control room output pairs. This is useful for A/B-ing
your mix between different studio monitors.
Speaker button
Mbox Pro Speaker/source select button
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Setup pop-up menu, Output Setup mode shown
The Output Setup options are grouped in the following categories:
Monitor Outputs (1–2, 3–4, 5–6)
Name
You can name your stereo Monitor output pairs by
clicking in the box. The name appears in the Output Pair tabs in the Stereo Mix section. See “Output Pairs” on page 34.
Control Room Assignment
This drop-down menu assigns a Monitor output
pair (1–2, 3–4, 5–6) as a control room output.
Choose between the following options:
• None
• Speakers A (Green LED)
• Speakers B (Red LED)
Left Trim This knob trims the level of the Left (odd
numbered) output.
Right Trim This knob trims the level of the Right (even
numbered) output.
S/PDIF Outputs L/R
These outputs are not assignable as control room
outputs. You can assign a name to your stereo output pairs. The name appears in the Output Pair tabs
in the Stereo Mix section.
Headphone Outputs A and B
These outputs are not assignable as control room
outputs. You can assign a name to your stereo output pairs. The name appears in the Output Pair tabs
in the Stereo Mix section.
• Speakers C (Amber LED)
Let’s say that outputs 1–2 are set up to be Speakers
A, outputs 3–4 are set up to be Speakers B, and
outputs 5–6 are set up to be Speakers C. Pressing
Mbox Pro’s Speaker button lets you switch between the three pairs of speakers. (Only one control room output pair is active at any time in Stereo
mode.)
Flow
Clicking the Flow button opens a display showing
the signal flow from the inputs to the outputs of
Mbox Pro. This is a useful reference for understanding the path of an audio signal flowing
through Mbox Pro.
Master Vol
This option lets you choose which output pairs are
controlled by Mbox Pro’s Master Volume knob.
If you enable this option for the all three Monitor
output pairs, then the Master Volume knob controls all of them at once.
If an output pair is designated as a control
room speaker pair, this checkbox is automatically checked and cannot be unchecked.
Chapter 5: Using the Driver Control Panel
31
About
Stereo Mix Section
The About pop-up menu lets you view the firmware version of the Mbox Pro hardware, and the
package version of the Mbox Pro driver installer.
These 16-input, 2-output mixes allow you to create
up to six stereo mixes when running at a sample
rate at or below 96 kHz, and up to two stereo mixes
when running at a sample rate above 96 kHz.
This lets you set up near-zero latency cue mixes in
which the performers hear a “customized” mix
while recording.
Web links
Firmware and driver information
Accessing the Web Links
Along the bottom-right of the Driver Control Panel
you can easily access helpful online resources on
our Avid website (www.avid.com) by clicking on
the following pop-up menus:
• Manual
• Updates
• Support
• FAQs
• Register
Clicking on any of the “Web links” will open
your web browser. Your computer must have
Internet access for these pages to load.
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It is important to note that any changes made to the
stereo mix will only affect what is audible from the
mixer’s outputs—the stereo mix does not affect the
signals that are sent to your recording application.
For example, if you are recording a vocalist and
he/she tells you to turn up the vocal track so they
can hear themselves better, you can increase the
vocalist’s microphone channel in the stereo mix.
This will make the vocal part louder in the vocalist’s headphones, but it will still be recorded into
Pro Tools at the volume determined by the front
panel Gain Adjustment Knob.
The stereo mix is set up like a standard mixing console. There are 16 input channels (eight hardware
inputs from Mbox Pro, and eight software returns
from your recording application). Each input channel has its own volume fader, pan and aux send
knobs, solo, and mute buttons, as well as a master
output section with its own pair of faders and mute
buttons.
A pair of channels can be linked together by clicking the link icon between the two channels. Linking channels lets you adjust mute, solo, and fader
settings simultaneously by modifying parameters
on either one of the linked channels. However,
linking two channels will not have any effect on
their Pan controls, which are always made on a
per-channel basis.
The stereo mix features multi-segment meters to
show input channel levels (directly above each
channel) and main mixer output levels (at the top
right of the mixer). The pre/post fader metering operation can be set from the Setup Tab of the Control Panel. The clip indicators can be set to “stick”
by choosing Hold Clipping Indicators until Clicked
in the Setup pop-up menu, and reset by clicking on
the clip indicator itself.
Hardware Inputs
The stereo mix section is located in the main view
of the Control Panel and is divided into five main
sections:
• Hardware Inputs
• Software Returns
• Output Pairs
• Master
• Effects
Software Returns
Master
Output
pairs
Signal Meter
Pan
Solo
Mute
Channel
Fader
Channel
Label
Channel
Link
Effects
Stereo Mix Section
Chapter 5: Using the Driver Control Panel
33
Hardware Inputs
The Hardware Inputs section is where the
Mic/Line, Instrument, and S/PDIF inputs of Mbox
Pro are monitored. Hardware Inputs 1–6 are the
analog inputs, and Hardware Inputs 7–8 are the
S/PDIF inputs.
Software Returns
The Software Returns section is where the audio
coming back from Pro Tools (or other audio application) is monitored.
Software Returns 1 and 2 are the default
stereo output from Pro Tools.
Output Pairs
For each Mbox Pro Monitor output pair (Monitor
outputs 1–2, 3–4, 5–6, S/PDIF Left and Right, or
Headphones A and B), there is a representative tab
in the output pair select view. The output pair select
view lets you choose the audio source for each
Monitor output pair, and where applicable, edit the
audio source.
Each output pair select tab includes a drop-down
menu where you can select the audio source you
want. The sources include:
• Stereo Mix 1
• Stereo Mix 2
• Stereo Mix 3 (Available only at sample rates at
or below 96 kHz)
• Stereo Mix 4 (Available only at sample rates at
or below 96 kHz)
• Stereo Mix 5 (Available only at sample rates at
or below 96 kHz)
• Stereo Mix 6 (Available only at sample rates at
or below 96 kHz)
• Software Returns 1–2
• Software Returns 3–4
• Software Returns 5–6
• Software Returns 7–8
• Hardware Inputs 1–2
• Hardware Inputs 3–4
• Hardware Inputs 5–6
• Hardware Inputs 7–8
The available output pair audio sources can be divided into two categories:
Stereo Mixes
Tabs representing each Mbox Pro hardware output
pair, output pair select view shown
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Avid Mbox Pro User Guide
A stereo mix lets you set up a custom stereo mix,
setting the desired level for each hardware input
and software return that is fed to the hardware output pair. See the Stereo Mix section below for details.
Direct Routes
Pan
A direct route means that the chosen signal is
passed directly to the hardware output pair. For example, if the source for output pair 1–2 were
“Hardware Inputs 1–2,” then the signal coming
into hardware inputs 1–2 of the Mbox Pro would
be fed directly to hardware outputs 1–2. Similarly,
if the source were “Software Returns 1–2,” the signal fed from an audio host software returns 1–2
would be fed directly to hardware outputs 1–2.
The Pan knobs control the position of a channel’s
audio signal in the stereo image of the stereo mix
(double-click the knob to return pan to center).
Notes:
• The source of the currently selected tab is displayed below the output pair select view. See
“Output Setup” on page 30.
• For Stereo Mix sources, a traditional mixer view
is displayed.
• For direct route sources, a view with meters is
displayed, and the input source and output destination are highlighted.
• You can drag and drop the tabs to reorder them if
you want.
Notes on output pairs that are designated as
control room outputs:
• If an output pair is a designated control room
output (see “Control Room Assignment” on
page 31), a speaker icon will appear in the upper
right corner of the tab. Click the speaker icon, or
double click the tab, to make the associated output pair the active control room speaker pair.
• Control room output pairs must have stereo
mixes as their source. This is enforced automatically by the software.
Solo
Each Solo button lets audio be monitored for the
channel of which it is a part, while simultaneously
muting all other Hardware Input channels and
Software Returns (except for those that also have
their Solo buttons activated).
Mute
The Mute buttons are used to individually turn off
audio monitoring for each channel in the stereo
mix.
Channel Faders
The Channel Faders control the monitoring volume level of each channel in the stereo mix.
Channel Labels
By default, the Channel Labels show the input
name of each channel (1–8), except for the Master
fader pair (which is labeled L/R by default).
Clicking on a Channel Label gives you a cursor, allowing you to type in your own custom channel
name (such as “guitar,” “vocals,” etc.).
The Channel Labels also display the signal level
(in dB) while a fader is being adjusted.
• In most cases, you will want to use the same stereo mixer (for example, Stereo Mix 1) for all
designated control room output pairs. This is not
enforced by the software, because there are
cases in which varying sources for control room
output pairs would be desirable.
Chapter 5: Using the Driver Control Panel
35
Link
FX Returns
The Link buttons connect stereo pairs of knobs or
faders (and also links the corresponding FX Send
knobs), so that adjusting either channel (left/right)
adjusts the other side identically.
These knobs control how much of the Effect audio
output will be mixed in with the monitor signal
Master L/R outputs. Unlike sends, FX Returns are
individually adjustable for each stereo mix.
Links buttons
Master section
FX Returns section
Pan controls are unaffected by linking two
channels.
Hardware Input FX Sends
FX Sends are shared by all Stereo Mixes, unless
“Post-Fader Stereo Mix 1” is chosen in the Setup
pop-up menu.
Software Return FX Sends
FX Sends are shared by all Stereo Mixes, unless
“Post-Fader Stereo Mix 1” is chosen in the Setup
pop-up menu.
FX Returns (below Master section)
The Clip LED will show clipping if the input to the
FX is clipping and if the output is clipping (the rest
of the meter is just output).
Effect
The Effect drop-down menu is used to select the
effect to be applied to the Hardware Inputs and/or
Software Returns (effects are not available if the
sample rate is > 96 kHz). There are five available
reverb types: Three room reverbs and two hall reverbs, delay, and echo. These effects can be customized by using the following three controls:
Duration This knob controls decay time (for the re-
verbs) or delay time (for delay and echo).
Feedback This knob controls the number of repeats for the delay and echo effects. It does not affect the reverbs.
Volume This knob controls the effects output level
being sent to the FX Returns
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Master
The Master section lets you control the main mixer
output. This output can be routed to any hardware
output. Each Stereo Mix includes a master section
with several controls:
Master fader
Stereo Mix Copy
pull-down
Balance knob
Link Button Links the FX Returns section and the
mute buttons.
Master Meters Lets you have a visual representation of the audio signal being fed to the associated
hardware output pair.
Stereo Mix Copy Lets you copy the settings of the
current stereo mix to one of the other stereo mixes.
Mono Button The Mono button is available only
under the following circumstances:
Width knob
Mute button (L)
• At least one output pair is assigned as a control room output pair.
Mute button (R)
Swap button
• The currently displayed stereo mix is the stereo mix used by the current control room output pair.
Channel Fader
Status Indicators
Along the bottom-left of the Driver Control Panel
are the following status indicators:
Hardware Connected
Mono button
Link button
FX Returns
section
Master section of the Driver Control Panel
This tells you the status of the hardware; if a properly installed, powered-on Mbox Pro is connected
to the computer.
Master Fader Adjusts the overall level of the stereo
mix.
Balance Knob Adjusts the left/right balance of the
stereo mix (double-click the knob to return it to
center).
Status indicators
Width Knob Adjusts the width of the stereo image,
where fully counter-clockwise is mono, and fully
clockwise is full stereo (double-click the knob to
return it to center).
Mute Buttons Mutes the left and/or right side of the
stereo mix.
Streaming
This indicates if audio from a Digital Audio Workstation or a media player (such as Pro Tools or
Windows Media Player) is currently streaming audio to the Mbox Pro.
Swap Button Swaps the stereo image, making the
left channel play out the Right output, and the right
channel play out the Left output.
Chapter 5: Using the Driver Control Panel
37
Host Control Enabled
If an application such as Pro Tools has control over
the Driver Control Panel, then “Host Control Enabled” displays.
Presets
The Preset view lets you load and save Mbox Pro
Settings files. This is useful if you'd like to save
various configurations of the Control Panel so that
you do not have to manually reconfigure your system each time you work on a different type of project.
Layouts
The Layout drop-down menu lets you choose what
information you would like the Driver Control
Panel to show, and how you would like that information to be displayed. There are four layouts to
select from:
Horizontal
The Horizontal layout is the default layout. It
shows all knobs, faders, meters and buttons in a
layout similar to that of a mixing console. The Horizontal layout is used for all the screen captures in
this chapter.
For example, you could save the following presets:
• A preset for live tracking, in stereo (low-latency/direct monitoring, and/or for discrete
headphone mixes).
• A preset for mixing in stereo (alternate speakers,
etc.).
Horizontal (Meters Only)
The Meters Only layout emphasizes pre-fader
hardware input and software return metering, but
does not provide access to the stereo mixers.
• A preset for working in multi-channel/surround.
Load Button
The Load Button opens a file browser that lets you
load a previously saved Settings file.
Save As...
The Save As button opens a file browser that lets
you save the current settings of the Driver Control
Panel to a Settings file.
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Mbox Pro Driver Control Panel, Horizontal (Meters
Only) shown
Vertical
Vertical (Meters Only)
The Meters Only layout emphasizes pre-fader
hardware input and software return metering, but
does not provide access to the stereo mixers.
Mbox Pro Driver Control Panel, Vertical shown
The Vertical layout provides access to all controls
and meters in a vertical window. The Vertical layout was designed for compact operation, which is
convenient if you want to run it along with Pro
Tools (uses far less screen real estate, but provides
full functionality).
Mbox Pro Driver Control Panel, Vertical (Meters Only)
shown
Chapter 5: Using the Driver Control Panel
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Chapter 6: Using the Multi Button
The Multi button on the front panel of the Mbox
Pro can be assigned to easily execute several functions in Pro Tools including (but not limited to):
• Add Track
• Start/Stop Record
• Tap Tempo
• Locating to Next/Previous Marker
• Save Session
Using the Multi Button
In the Hardware Setup dialog, Pro Tools lets you
set three Multi button parameters for your
Mbox Pro using the “Multi Button Function” pane.
(You can also launch the Driver Control Panel
from here).
For more information on the Driver Control
Panel, see Chapter 5, “Using the Driver
Control Panel.”.
The Multi Button Function includes the following
options:
Press and Release Displays the options available
for Press and Release mode.
Press and Hold Displays the options available for
Press and Hold mode.
Mbox Pro (Multi button shown)
You can use the Multi button to do these and other
common tasks with a single button instead of using
on-screen menu commands. By pressing the Multi
button two different ways (Press and Release,
Press and Hold) you can perform two functions
with one button.
Duration Gives four time duration options for
Press and Hold button.
Launch Control Panel Launches Driver Control
Panel.
Chapter 6: Using the Multi Button
41
To use the Multi Button Function pane and
configure its parameters (example):
1
Launch Pro Tools.
2
Choose Track > New and create 1 Mono audio
track.
You need to have at least one track available
in a session to use the Add Last Track and
Add Selected Track functions.
3
Choose Setup > Hardware.
4
From the Press and Release list, select
Start/Stop Record (the default).
5
From the Press and Hold list, select Add Selected Tracks (the default).
6
From the Hold Duration list, select 500 msec
(the default).
Press and Release Options
When you click on the Press and Release list, a
pop-up menu provides access to the following options:
None No function is selected in this mode.
Add Last Track Adds the last track type that you
created in the session. Say you have created two
Audio tracks in a session. It will add another mono
Audio track.
Add Selected Track Adds whatever tracks that
you have selected in a session. Say you have selected two Audio tracks in a session. It will add another two Audio tracks.
Cursor to Next Marker Each time the button is
pressed and released, the transport will locate to
the next marker location.
Cursor to Previous Marker Each time the button is
pressed and released, the transport will locate to
the previous marker location.
Multi Button Function pane (Shown in Hardware Setup
dialog)
Start/Stop Playback Each time the button is
pressed and released, it starts/stops playing back
the session.
Start/Stop Record Each time the button is pressed
and released, it starts/stops recording.
7
Go to the Edit Window and select the track you
just created.
8
Press and hold the Multi button for 500 msec,
then release. A new track is added in Record
Enable mode.
pressed and released, the Loop Playback mode is
toggled between enabled and disabled.
9
Press and immediately release the Multi button.
The track begins recording.
Undo Each time the button is pressed and released,
it: undoes that last operation you performed in Pro
Tools. (Same as the Undo command from the Pro
Tools menu)
Loop Playback Toggle Each time the button is
This is just one example of how easy it is to use the
Multi button if you want to quickly throw down
tracks and record. But you can personalize the
Multi button settings to fit any audio workflow that
works for you.
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Save Session Each time the Multi button is
pressed and released, it saves the session.
Tap Tempo The Multi button can be tapped to adjust the session tempo. Tapping tempo will cause
Pro Tools to come out of Conductor mode and
match its tempo to the tapped tempo. If Pro Tools
is already in Manual Tempo mode, the session will
automatically adjust its tempo to match the value
created by the Tap Tempo function.
Undo Each time the button is held and released, it
undoes that last operation you performed in Pro
Tools. (Same as the Undo command from the Pro
Tools menu)
Save Session Each time the Multi button is held
and released, it saves the session.
Press and Hold Options
Hold Duration Options
When you click on the Press and Hold list, a popup menu provides access to the following options:
When you click on the Hold Duration list, a dropdown menu provides access to the following options:
None No function is selected in this mode.
Add Last Track Adds the last track type that you
created in the session. Say you have created two
Audio tracks in a session. It will add another mono
Audio track.
Hold Duration There are four choices of Hold Duration (250 msec, 500 msec, 750 msec, and 1 sec),
which is the amount of time you choose to hold the
Multi button down in Press and Hold mode.
The default is 500 msec.
Add Selected Track Adds whatever tracks that
you have selected in a session. Say you have selected two Audio tracks in a session. It will add another two Audio tracks.
Cursor to Next Marker Each time the button is
held and released, the transport will locate to the
next marker location.
Cursor to Previous Marker Each time the button is
held and released, the transport will locate to the
previous marker location.
Start/Stop Playback Each time the button is held
and released, it starts/stops playing back the session.
Start/Stop Record Each time the button is held and
released, it starts/stops recording.
Loop Playback Toggle Each time the button is
held and released, the Loop Playback mode is toggled between enabled and disabled.
Chapter 6: Using the Multi Button
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Appendix A: Using CoreAudio- and ASIOCompliant Applications
The Mbox Pro hardware drivers let you use CoreAudio (Mac) or ASIO (Windows) compliant applications with your Mbox Pro.
For driver installation instructions, see
Chapter 3, “Installing and Connecting
Mbox Pro.”
Configuring Mbox Pro for
Third-Party Applications
When using Mbox Pro with an application other
than Pro Tools (such as Apple GarageBand), you
may be able configure hardware settings through
the audio preference settings available in that application.
You can also configure your hardware using the
Control Panel. See “Using the Driver Control
Panel” on page 25.
Configuring the Apple Sound
Preferences
(Mac Only–Required for Using Qualified
Pro Tools Interface with Apple iTunes or
QuickTime Player)
To use your Mbox Pro with certain CoreAudiocompatible playback applications (such as Apple
iTunes or QuickTime Player), you will need to
configure either Sound Preferences or Audio MIDI
Setup.
To configure the Apple Sound Preferences:
1
Launch System Preferences (Apple menu >
System Preferences)
2
Click Sound.
3
Click Output and select your Pro Tools hardware as the device for sound output.
4
Click Input and select your Pro Tools hardware
as the device for sound input.
5
Quit System Preferences.
Appendix A: Using CoreAudio- and ASIO-Compliant Applications
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Appendix B: Compliance Information
Environmental Compliance
Disposal of Waste Equipment by Users
in the European Union
Proposition 65 Warning
This product contains chemicals, including
lead, known to the State of California to cause
cancer and birth defects or other reproductive
harm. Wash hands after handling.
Perchlorate Notice
This product may contain a lithium coin battery. The State of
California requires the following disclosure statement:
“Perchlorate Material – special handling may apply, See
www.dtsc.ca.gov/hazardouswaste/perchlorate.”
This symbol on the product or its packaging indicates that this
product must not be disposed of with other waste. Instead, it
is your responsibility to dispose of your waste equipment by
handing it over to a designated collection point for the
recycling of waste electrical and electronic equipment. The
separate collection and recycling of your waste equipment at
the time of disposal will help conserve natural resources and
ensure that it is recycled in a manner that protects human
health and the environment. For more information about
where you can drop off your waste equipment for recycling,
please contact your local city recycling office or the dealer
from whom you purchased the product.
Recycling Notice
Appendix B: Compliance Information
47
EMC (Electromagnetic
Compliance)
Avid declares that this product complies with the following
standards regulating emissions and immunity:
• FCC Part 15 Class A
• EN 55022 Class A
• EN 55024 Class A
• AS/NZS CISPR 22 Class A
• CISPR 22 Class A
Argentine Compliance
RE
PUBLICA
AR
GENTINA
TÜV
Rheinland
Argentina S. A.
Australian Compliance
FCC Compliance for United States
Communication Statement
Note: 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 his own expense.
N1709
Canadian Compliance
This Class A digital apparatus meets all requirements of the
Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les
exigences du Règlement sur le material brouilleur du Canada.
CE Compliance
(EMC and Safety)
Any modifications to the unit, unless expressly approved by
Avid, could void the user's authority to operate the
equipment.
Avid is authorized to apply the CE (Conformité Europénne)
mark on this compliant equipment thereby declaring
conformity to EMC Directive 2004/108/EC and Low Voltage
Directive 2006/95/EC.
Korean EMC Regulations
Japan VCCI Compliance
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Avid Mbox Pro User Guide
Safety Compliance
Safety Statement
This equipment has been tested to comply with USA and
Canadian safety certification in accordance with the
specifications of UL Standard UL 60950-1 2nd edition IEC
60950-1 2nd edition, and Canadian CAN/CSA C22.2 609501-07 2nd edition. Avid Technology, Inc., has been authorized
to apply the appropriate TUV & cTUV marks on its compliant
equipment.
Warning
12) For products that are not rack-mountable: Use only with a
cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the equipment. When a cart is
used, use caution when moving the cart/equipment
combination to avoid injury from tip-over.
13) Unplug this equipment during lightning storms or when
unused for long periods of time.
14) Refer all servicing to qualified service personnel. Servicing
is required when the equipment has been damaged in any
way, such as power-supply cord or plug is damaged, liquid
has been spilled or objects have fallen into the equipment, the
equipment has been exposed to rain or moisture, does not
operate normally, or has been dropped.
15) For products that are a Mains powered device:
The equipment shall not be exposed to dripping or splashing
and no objects filled with liquids (such as vases) shall be
placed on the equipment.
Warning! To reduce the risk of fire or electric shock, do not
expose this equipment to rain or moisture.
Important Safety Instructions
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
16) For products containing a lithium battery:
CAUTION! Danger of explosion if battery is incorrectly
replaced. Replace only with the same or equivalent type.
17) For products with a power switch:
The main power switch is located on the front panel of the
Mbox Pro. It should remain accessible after installation.
18) The equipment shall be used at a maximum ambient
temperature of 40° C
4) Follow all instructions.
5) Do not use this equipment near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in accordance
with the manufacturer’s instructions.
8) Do not install near any heat sources such as radiators, heat
registers, stoves, or other equipment (including amplifiers)
that produce heat.
9) Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades with one
wider than the other. A grounding type plug has two blades
and a third grounding prong. The wide blade or the third prong
are 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 power cords from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the equipment.
11) Only use attachments/accessories specified by the
manufacturer.
Appendix B: Compliance Information
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Avid Mbox Pro User Guide
Avid
Technical Support (USA)
Product Information
2001 Junipero Serra Boulevard
Daly City, CA 94014-3886 USA
Visit the Online Support Center at
www.avid.com/support
For company and product information,
visit us on the web at www.avid.com