Dual Audio Output on OS X Using USB Headphones

Dual Output via USB on Mac OS X

This tutorial will show you how to change the settings on your Mac so it will output sound to two USB audio devices at the same time.

Open the spotlight menu by pressing Command and the Space Bar

Open the spotlight menu by pressing Command and the Space Bar

Type “midi” and then click on “Audio MIDI Setup”

Type "midi" and then click on "Audio MIDI Setup"

Click “+” and select “Create Aggregate Device”

Click "+" and select "Create Aggregate Device"

Check the boxes next to the headsets

Check the boxes next to the headsets

Click the triangle to the left of the Aggregate Device to expand the menu

Click the triangle to the left of the Aggregate Device to expand the menu

Click on the first headset, make sure it is set to “1ch-16bit Integer” and that the Volume slider is to the right

Repeat this step for the second device!

Click on the first headset, make sure it is set to "1ch-16bit Integer" and that the Volume slider is to the right

Make sure that you repeated the previous step for each device.

Seriously, it might not work if you skipped it.

Make sure that you repeated the previous step for each device.

Right-click on the “Aggregate Device” option and select “Use this device for sound output”

Right-click on the "Aggregate Device" option and select "Use this device for sound output"

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