MobilePre User Guide
Legal Notices
This guide is copyrighted ©2010 by Avid Technology, Inc., with
all rights reserved. Under copyright laws, this guide may not be
duplicated in whole or in part without the written consent of
Avid Technology, Inc.
Avid, Pro Tools, Pro Tools M-Powered, and M-Audio are either
trademarks or registered trademarks of Avid Technology, Inc.
All other trademarks contained herein are the property of their
respective owners.
Product features, specifications, system requirements, and
availability are subject to change without notice.
Guide Part Number 9329-65019-00 REV A 04/10
Documentation Feedback
At Avid, we are always looking for ways to improve our
documentation. If you have comments, corrections, or
suggestions regarding our documentation, email us at
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contents
Chapter 1. Introduction to MobilePre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
MobilePre Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Conventions Used in This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Chapter 2. Controls and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Top Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 3. MobilePre Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installing MobilePre Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hardware Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 4. MobilePre Software Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Accessing the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Latency Tab (Windows) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Sample Rate Tab (Windows) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
About Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Adjusting the Bit Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 5. Using MobilePre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Setting the Output Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Recording Microphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Recording Instruments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Setting Your Recording Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Direct Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Sample Rate and Bit Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Contents iii
Chapter 6. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Check Your Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Check the MobilePre Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Before Updating Your System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Music Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Appendix A. Compliance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Environmental Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
EMC (Electromagnetic Compliance) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Safety Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
MobilePre User Guideiv
chapter 1
Introduction to MobilePre
Congratulations on your purchase of M-Audio®
MobilePre™. This audio interface is powered by
a single USB connection to a computer, and
works with your favorite music software to deliver professional-quality recordings. You can
use it to capture your guitar and vocal performances, voice-overs, podcasts, or anything else
you need to record.
Furthermore, its lightweight compact design
allows you to take MobilePre anywhere.
Please take the time to read this User Guide. It
will explain how to get the best performance out
of your MobilePre audio interface.
MobilePre Features
•2 inputs, 2 outputs
• 24-bit, 48 kHz operation
• 2 front panel “Combo” input connectors (Mic
or Instrument)
• 48V Phantom power for condenser microphones
• 2 “Front/Back” input selector switches
• Direct Monitor button
• 2 front panel Signal/Clip indicators
• 1/4-inch stereo headphone output with dedicated volume control
• 2 back panel 1/4-inch TRS line-level inputs
• 2 back panel 1/4-inch TRS Balanced line outputs with dedicated output volume control
• USB bus powered operation
• Class compliant operation
• Pro Tools® M-Powered™ compatible
Chapter 1: Introduction to MobilePre 1
System Requirements
Minimum system requirements and product
specifications can be found on the M-Audio
website at www.avid.com.
Registration
Conventions Used in This Guide
The following symbols are used to highlight important information:
User Tips are helpful hints for getting the
most from your system.
Review the enclosed Registration Information
Card and follow the instructions on it to quickly
register your purchase online. By registering,
you become eligible to receive the following:
• Technical support information
• Software update and upgrade notices
• Hardware warranty information
Important Notices include information that
could affect your data or the performance of
your system.
Cross References point to related sections in
this guide.
MobilePre User Guide2
chapter 2
2 3 4 5 61 7
Controls and Connectors
Front Panel
1 Phantom Power Indicator (48V) This red LED
illuminates when the Phantom Power switch
(back panel) is set to the “on” position.
Although phantom power can be used
safely with most microphones, it may damage some ribbon microphones. Always turn
off phantom power and wait at least ten
seconds before connecting a ribbon microphone.
2 Microphone/Instrument Inputs These con-
nectors accept either a standard XLR microphone cable, or high-impedance 1/4-inch TS
instrument cable.
3 Signal/Clip Indicators The green LED indi-
cates the presence of a signal at the corresponding input. The red LED indicates “clipping” or
distortion.
For more information, refer to “Setting Your
Recording Levels” on page 12.
4 Front/Back Input Buttons These buttons al-
low selection of the front or back panel inputs
for their corresponding channels.
5 Direct Monitor Button This button switches
Direct Monitoring on and off, which provides a
latency-free mix of the input signal and the output of your music software. When Direct
Monitoring is switched off, you must use the
monitoring option in your music software.
For more information, refer to “Direct Monitoring” on page 12
6 Headphone Output Connect your stereo head-
phones to this 1/4-inch output. Set the volume
using the top panel Headphone control knob.
7 Power Indicator This blue LED indicates that
MobilePre is receiving power from the USB port
on the host computer.
Chapter 2: Controls and Connectors 3
Top Panel
8
8 9 10
8 Channel Gain Knobs These knobs control the
input volume for their corresponding channels
when setting recording levels.
For more information, refer to “Setting Your
Recording Levels” on page 12
MobilePre User Guide4
9 Headphone Volume Knob This knob controls
the level of the Headphone output signal
10 Line Output Knob This knob controls the
output level for both back panel Line Outputs.
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