Introduction; Quattro Features; What's In The Box; Minimum System Requirements - M-Audio Quattro USB User Manual

Introduction

Thank you for purchasing the USB Audio 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 PC or
Macintosh computer. High performance, 24-bit/96kHz audio is now possible in
a compact, portable package. All audio inputs and outputs are switch-able
between balanced (+4dBu) and unbalanced (-10dBV) operation to accommodate
any audio need.
The USB port is a convenient, high-speed connection that requires no tools to
install, no IRQ or additional resources, with no need to open or reconfigure your
computer. By following the instructions in this manual, you will be up and
running in no time.

Quattro Features

• Four (4) analog audio inputs on 1/4" TRS jacks.
• High performance, 24-bit/96kHz A/D and D/A converters, with
101dB dynamic range on input and 104dB on output.
• ASIO 2.0 drivers included.
• Input Level switch for +4/-10 input line level settings (one for each
stereo pair, 1/2 & 3/4).
• Output Level switch for +4/-10 output line level settings (one for each
stereo pair, 1/2 & 3/4).
• Direct Monitor switch for computer bypass monitoring option (one
for each stereo pair, 1/2 & 3/4).
• One (1) MIDI Input and one (1) MIDI Output on front panel.
• Expansion jack for connection to the Omni I/O Desktop System by
M-Audio.

What's in the Box?

Your Quattro USB Audio Interface box contains:
• This manual.
• The Quattro USB Audio Interface.
• One (1) USB cable.
• One (1) 9vAC 1,000mA wall-wart power supply.
• One (1) driver disk containing drivers and additional software.
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Minimum System Requirements

Windows

• Windows 98 SE, Windows ME or Windows 2000, Windows XP.
• Pentium III 500MHz for 96kHz operation. Pentium II 400MHz for
48kHz or less.
• 128 MB or more of RAM for 96kHz operation. 64MB RAM for 48kHz
or less.

Macintosh

• Mac OS 9.1 minimum.
• Mac G3 with onboard USB.
• 128 MB RAM for 96kHz operation, 64MB RAM 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
+4dBu line level operation. Pressing in and engaging this switch sets the these inputs to
-10dBV line level.
2. 1/2 "Output Level" switch: In the 'out' position, the Quattro Outputs 1 & 2 are set to
+4dBu line level operation. Pressing in and engaging this switch sets these outputs to
-10dBV line level.
3. 1/2 "Direct Monitor" switch: In the 'out' position, Quattro Outputs 1 & 2 are fed from
the computer for monitoring. Pressing in and engaging this switch connects Inputs 1/2
directly to the Quattro Outputs 1/2.
4. 3/4 "Input Level" switch: In the 'out' position, the Quattro Inputs 3 & 4 are set to
+4dBu line level operation. Pressing in and engaging this switch sets the these inputs to
-10dBV line level.
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