Звуковая карта M-AUDIO Duo USB. Инструкция на английском языке

DUO             TM
AUDIO                 Users Manuual
TM
Introduction   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
What’s in the Box?  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Quick Start Guide  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Duo Features   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Minimum System Requirements    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Front Panel:   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Back Panel:   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Bottom of Unit:   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Basic Theory of Operation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Hardware & Software Installation on the PC   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Windows XP Installation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Windows 2000 Installation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Windows ME Installation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Hardware & Software Installation on the Mac   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Hooking up your USB Audio Duo   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Using the Input and Output Level Switches   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Using the Mic Inputs   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Setting the Gain   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Phantom Power   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Using the Pad Switch   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Standalone Mode   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Duo Operation on the PC   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
The USB Audio Configuration Manager   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
The Duo and the Windows Sound System  . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
The Duo, MME, and Your Music Program   . . . . . . . . . . . . . . . . . . . . . . . . . . .16
ASIO/EASI Operation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
ASIO/EASI Control Panel and Operating Modes on the PC   . . . . . . . . . . . . . .17
Advanced Tab  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Duo Operation on the Macintosh   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
The Macintosh Sound Manager  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
ASIO Operation on the Macintosh    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
ASIO Control Panel and Operating Modes on the Mac   . . . . . . . . . . . . . . . . . .21
Optimizing Your System for USB Audio   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Troubleshooting:  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Before You Call Midiman/M-Audio Technical Support   . . . . . . . . . . . . . . . . . .25
Limited Lifetime Warranty   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Introduction
Congratulations  on  your  purchase  of  the  Duo,  designed  and  manufactured  by
M-Audio. The Duo is a complete USB audio solution for your PC or Macintosh
computer.  With  two  inputs  and  two  outputs  of  24-bit  audio  and  up  to  96kHz
sampling frequencies, coupled with two high quality mic preamps, the Duo utilizes
the power and convenience of USB audio in a convenient half-rack size unit.
The Duo lets you operate its analog inputs and outputs at either +4 or -10 line
levels,  gives  you  a  S/PDIF  output,  plus  a  headphone  output  for  personal
monitoring. Additionally, the Duo has a “Standalone” mode that lets you operate
it as a mic preamp or A/D converter independent of your computer.
Please take the time to read this manual. It contains important information that
will help you get the most out of your Duo.
What’s in the Box?
Your Duo box contains:
• This Manual.
• The Duo.
• One (1) Standard USB cable.
• 9V AC 1 Amp “Wall Wart” power supply.
Quick Start Guide
The USB Audio Duo is a powerful little device that you will find easy to use once
you familiarize yourself with its many features. The many aspects of the Duo are
detailed in this manual, and for that reason we suggest giving it a good read through.
Here is a basic outline of the steps you will need to take to get your Duo up and running:
1.  Install the drivers, following the instructions for your particular platform and
operating system (see “Hardware and Software Installation” sections).
2.  Hook up your microphone and/or other audio gear to the Duo inputs, and
connect the output(s) to your sound system, mix deck, or headphones (see
section, “Hooking Up Your USB Audio Duo”).
3.  Configure your music software to utilize the Duo as its audio interface.
4.  Make music.
Whether your music program uses ASIO drivers, EASI drivers, Windows MME
or Macintosh Sound Manager, will determine how you configure the Duo in your
music program. There are entire sections devoted to using your Duo either on the
PC or on the Mac.
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Other  aspects  of  the  Duo,  including  use  of  the  +4/-10  line  level  switches,
phantom power, etc., are also covered in depth. Also, be sure and check out the
section, “Optimizing Your Sytem for USB Audio,“ later in the manual. So, please
read on, and enjoy your Duo.
Duo Features
•   2 critically acclaimed DMP2 mic preamps with individual gain controls.
•   Balanced/unbalanced line outputs on 1/4” TRS, unbalanced line
inputs on 1/4” TS.
•   Preamps have maximum gain of 60dB with signal and clip indicator
LEDs per channel.
•   S/PDIF digital output on gold-plated RCA jack.
•   Headphone output with level control.
•   48V global phantom power with switch and indicator LED.
•   20dB pad available for each microphone input.
•   Multitrack recording and mixing using the convenience of your USB port.
•   PC drivers include Windows XP, 2000, ME and 98SE, ASIO, EASI
and WDM.
•   Mac drivers include OS 9.1 and higher, Sound Manager, and ASIO.
Performance Specs:
• Dynamic Range (Direct Line In to Line Out): 105dB
• THD+N (Direct Line In to Line Out): <0.002%
• Dynamic Range (Mic In to Line Out): 107dB
• THD+N (Mic In to Line Out): <0.002%
Minimum System Requirements
Macintosh
• USB (native) equipped Mac G3.
• Mac OS 9.1 minimum.
• 64M available RAM for 44.1 or 48k operation, 128 recommended.
128M available RAM for 96k operation, 256M recommended.
Windows
• USB equipped Pentium.
• Windows 98SE or higher.
• 64M available RAM for 44.1k or 48k operation, 128 recommended.
Pentium 266  MHz MMX.
• 128M available RAM for 96k operation, 256M recommended.
Pentium II, 333 MHz.
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