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Audiosport Quattro Mac
Users Guide
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Quattro Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
What's in the Box? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Minimum System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Quattro Front Panel: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Quattro Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Hardware & Software Installation on the Mac . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Configuring OMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Hooking up your AudioSport Quattro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
The Quattro and the Macintosh Sound Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
ASIO Operation on the Macintosh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Using the Input and Output Level Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Using Direct Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
MIDI Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Optimizing Your System for Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Technical Specs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Limited Lifetime Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
QuattroMac-072601
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Summary of Contents for M-Audio Audiosport Quattro Mac

  • Page 1: Table Of Contents

    Audiosport Quattro Mac Users Guide Introduction ............2 Quattro Features .
  • Page 2: Introduction

    Introduction Thank you for purchasing the AudioSport Quattro USB Audio Interface, designed and manufactured by M Audio. The Quattro provides four audio inputs and four audio outputs, plus a 1x1 MIDI port on your USB equipped Macintosh computer. High performance, 24-bit/96kHz audio is now possible in a compact, portable package.
  • Page 3: Minimum System Requirements

    Minimum System Requirements • Mac OS 9.1 minimum • Mac G3 with onboard USB • 128 MB RAM for 96kHz operation, 64MB for 48kHz or less. • Opcode’s OMS required for MIDI operation Quattro Front Panel: 1. 1/2 “Input Level” switch: In the ‘out’ position, the Quattro Inputs 1 & 2 are set to -10dBV line level operation.
  • Page 4: Quattro Quick Start

    Quattro Rear Panel: 1. “9VAC” power jack: This jack accepts the wall-wart power supply that came with the unit. Only the proper power-rated supply should be used. 2. “To Omni I/O” connector: This 15-pin DB connector accepts the female end of the Omni I/O connection cable (supplied with the Omni I/O).
  • Page 5: Theory Of Operation

    Theory of Operation The USB port provides a high-speed connection to your computer. Devices can be “hot-plugged” into the USB port with no need to power down the computer. Additionally, there’s no need to open the computer, no tools are required, nor is it necessary to configure the device other than plugging it in to the USB port and installing the drivers.
  • Page 6: Hardware & Software Installation On The Mac

    “Using Direct Monitoring). Additionally, the AudioSport Quattro can be used in conjunction with the Omni I/O Desktop Recording System by M-Audio. The Omni will add two microphone/instrument preamps to the Quattro inputs, plus add a mixer to the Quattro outputs. This Omni mixer will allow you to blend MIDI keyboards with audio tracks, add effects to the Quattro outputs, control monitor and headphone levels while separately mixing down.
  • Page 7: Configuring Oms

    creates an “AudioSport QUATTRO Asio” folder on your desktop, containing the Quattro’s ASIO driver. 2. If you are using a music software program that utilizes ASIO drivers, then locate the program’s ASIO folder (it will be found within the program’s folder on your Macintosh HD).
  • Page 8: Hooking Up Your Audiosport Quattro

    You can run the OMS ‘Test Studio’ utility by going to the ‘Studio’ menu and releasing the mouse on “Test Studio”. Playing a note on your keyboard will give you an audio message from your computer, “MIDI received,” while the arrow pointing to the keyboard icon flashes.
  • Page 9: The Quattro And The Macintosh Sound Manager

    MIDI Sound Module The Quattro and the Macintosh Sound Manager The Macintosh Sound Manager will allow you to select the AudioSport Quattro as the system’s audio input and output device. However, if you are using the Quattro ASIO driver, you should leave the Sound control panel set to “built-in.” Open the Apple menu, then select “Sound”...
  • Page 10: Asio Operation On The Macintosh

    ASIO Operation on the Macintosh If your Macintosh music program is ASIO compliant, you may install and use the AudioSport ASIO driver with your Quattro. Open your Macintosh HD folder and locate your music program. Within the program’s folder you should find an ASIO folder.
  • Page 11 With all four stereo pairs enabled, i.e., Inputs 1&2, 3&4 and Outputs 1&2, 3&4, the Quattro behaves as a “4x4” audio device at 16-bits, and at sample rates of 48kHz and below (that is, 48kHz or 44.1kHz). These two sampling rate options as well as bit depth will be selectable from within your music program.
  • Page 12: Using The Input And Output Level Switches

    The Quattro will perform at 96kHz sampling rate with any one of the stereo pairs enabled, and with the 24-bit Sample Depth selected. The Quattro will not operate at 96kHz when the control panel is set to 16-bits. In the example below, Output 1&2 is enabled and 24-bit Sample Depth is selected, with the Maximum sample rate showing 96kHz.
  • Page 13: Using Direct Monitoring

    Generally speaking, a device that runs at a -10dB line level will have outputs or inputs that are single conductor with a ground, such as RCA jacks, or 1/4” tip-sleeve phone jacks. Devices that run at a +4dB line level will have outputs or inputs that are two conductor with a ground, such as XLR or 1/4”...
  • Page 14: Optimizing Your System For Audio

    Optimizing Your System for Audio Network cards and devices such as print monitors can cause interference with USB audio, the resulting effect being clicks and pops in your audio performance. As stated in the “Theory of Operation” section, the AudioSport Quattro requires all of the USB bandwidth, so definitely do not have any active USB devices attached when using the Quattro.
  • Page 15: Technical Specs

    Technical Specs Analog Audio Peak Analog Input Signal: +19.6dBu (+4dBu setting), +2.1dBV (-10dBV setting) Peak Analog Output Signal: +20.0dBu (+4dBu setting), +2.0dBV (-10dBV setting) Dynamic Range: Outputs: 104dB (a-weighted), Inputs: 101dB (a-weighted) THD (at 0dBFS): Outputs: less than 0.002%, Inputs: less than 0.002% Frequency Response: 22Hz - 22kHz, -0.3,-0.2dB...
  • Page 16: Limited Lifetime Warranty

    Limited Lifetime Warranty MIDIMAN warrants that this product is free of defects in materials and workmanship under normal use so long as the product is: owned by the original purchaser; the original purchaser has proof of purchase from an authorized MIDIMAN dealer;...

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