Duet (FireWire): Troubleshooting

• Open Maestro 2 (found in your Mac's application folder) and click on the “Apogee Maestro 2″ menu in the upper left-hand corner of the desktop menu bar
• select “About Maestro 2″. This will bring up a window showing you which version you have installed (see example below)

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Symptom: When opening any Cubase session or selecting Apogee as the audio device, the output goes to full volume every time. Solution: In Cubase, go to Devices > Device Setup > Control Panel > Core Audio Device Settings. Under Options, verify that set device attenuation to 0 dB is unchecked.

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Using the low latency mixer found in the Apogee Maestro 2 application may help. Click on the mixer tab to configure it to your desired settings. Be sure to set your desired output to "mixer" on the output page.

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Symptom: Error on launch of Pro Tools 9: ''Pro Tools could not initialize the current playback device. Please make sure that the device has been configured correctly.'' [381131] Resolution: This could be an issue with the Current Engine setting in the Pro Tools Playback Engine. This has been resolved in some scenarios by picking a different Playback Engine:

• Launch Pro Tools 9
• When the splash screen appears on the screen, hold down the "n" key on your keyboard, which will eventually open the Playback Engine dialog for Pro Tools.
• At the top of this window, you will see the 'Current Engine' drop-down menu.
• Choose a different Engine (such as Pro Tools Aggregate I/O)
• Click OK.
• This should allow Pro Tools to launch.

If the solution above fails, you can try deleting the "com.apple.audio.AggregateDevices.plist" preference on Mac OS X. You can find this preference file in the following location: Macintosh HD > Library > Preferences

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Symptom: When using Mac OS X 10.7 or greater, the Duet FireWire's OUT LED flashes and the device is not recognized by the mac. Solution: Please run the Duet uninstaller before installing the latest software package.   Step 1: Duet Uninstaller Step 2: Duet FireWire Software Installer Mac OS X Lion

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If you have the input gain turned up with nothing connected to that input on Duet's breakout cable, then you may experience some noise. If you are just listening to Duet's output and do not have any microphones or instruments connected, make sure you turn the input gain all the way down.

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The headphone and line outputs are always controlled simultaneously. To set the balance between headphones and speakers connected to the line outputs, set the speaker’s amplifier accordingly. It is possible to mute the headphones and line outputs independently.

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It is normal for the OUT LED to flash when you shut down the Mac and leave the Duet connected to the FireWire port. If you would like to prevent the OUT LED from flashing, simply remove the FireWire cable from the Duet after shutting down your Mac.

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To reset Duet, press and hold the encoder until all of the LEDs on the unit are lit. All settings will return to their factory default.

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Tip - When experiencing clicks and pops on a Mac, try raising the buffer size in the audio app. In Logic, for example, choose Logic Pro > Preferences > Audio, click the Devices tab, then the Core Audio tab, and set the I/O Buffer Size to the next highest number.

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