M-Audio Duo quick start Using the Input and Output Level Switches

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Using the Input and Output Level Switches

speakers, or a headphone amplifier, or to the inputs of a mixing console. Again, check your device’s documentation for information on its operating line level, and see the section, “Using the Input and Output Level Switches.” The Duo’s S/PDIF Out can be connected to any S/PDIF capable device, such as a DAT or MiniDisc with coaxial S/PDIF inputs.

The diagrams below illustrate two scenarios, intended as examples of how the Duo might be used. Typical Setup #1 shows the Duo with a microphone plugged

into the Mic input on Channel 1, and an electric guitar with direct box plugged into the Mic input on Channel 2. The main outputs (Line Out) of the Duo are plugged into a monitoring system, with the S/PDIF Out connected to the S/PDIF input of a DAT recorder (as you would if you were mixing down). Typical Setup

#2 shows a CD player plugged into the Line Input on Channels 1&2, with Outputs 1/2 plugged into a monitoring system.

Using the Input and Output Level Switches

Using the front panel Input Level and/or the back panel Output Level switches, you may change the operating line level for each of the Duo’s stereo pair Line Level Inputs or Outputs. In the “out” position, the Duo is set to a +4dBu line level. Pressing the input level switch and locking it to the “in” position changes the operating line level to a -10dBV setting.

You can, in fact, have the input set to one line level and the output set to another, depending on your needs. This will depend on the operating line level of the device that is attached to that particular input or output. Your goal is to match the Duo’s input or output line level to the line level of your source or target device.

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” tip-ring-sleeve

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Contents Users Manuual TroubleshootingDUOTM 9V AC 1 Amp “Wall Wart” power supply IntroductionWhat’s in the Box? Quick Start GuideMacintosh Duo FeaturesMinimum System Requirements Performance SpecsFront Panel Back Panel The Duo is a Bottom of UnitBasic Theory of Operation FROMCubase Hardware & Software Installation on the PCWindows XP Installation Windows 2000 InstallationWindows 98 Second Edition Installation Windows ME InstallationHardware & Software Installation on the Mac Hooking up your USB Audio Duo Using the Input and Output Level Switches Setting the Gain Using the Mic InputsOperating the Duo in Standalone mode will give you three options Phantom PowerUsing the Pad Switch Standalone ModeDuo Operation on the PC The USB Audio Configuration ManagerThe Duo and the Windows Sound System the latest software technology The Duo, MME, and Your Music ProgramASIO/EASI Operation ASIO/EASI Control Panel and Operating Modes on the PC within your music program driver versions currently in use by the USB Audio Duopanel is set to 16-bits, or when more than one stereo pair is selected for input or The Macintosh Sound Manager Duo Operation on the MacintoshAdvanced Tab ASIO Control Panel and Operating Modes on the Mac ASIO Operation on the MacintoshPage Optimizing Your System for USB Audio Problem No sound TroubleshootingGather Important Information Use Midiman/M-Audio ResourcesDigital Audio Appendix A - Technical SpecificationsAnalog Audio DUO-010802 Limited Lifetime Warranty