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I used to be able to make music play out both my laptop speakers and also my monitor speakers.

I did this in the System Preferences and "creating" a new audio device that composed of both my laptop and my monitor. However sometime later I'm unable to find or locate the setting to create a new audio device that allows for this.

How do I re-enable sound out both my laptop and monitor speakers?

The only changes I made since I did this include: Install Logix, Install (and remove) Boom audio boost, and normal system updates.

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up vote 3 down vote accepted

Try multi-output devices in /Applications/Utilities/Audio Midi

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Please rate the answer up if it meets your requirement. – AMomchilov Jul 21 '13 at 3:29

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