Knowledge Base


AudioBox VSL Headphone Routing with Mac OS X Audio MIDI Setup

Setting up your Headphone Routing for AudioBox VSL interface with Audio MIDI Setup in Mac OS X:

Step 1: Open up your Application Folder and then open up the Utilities Folder


Step 2: Once in the Utilities folder, run the "Audio MIDI Setup" Utility (icon looks like a single octave keyboard).



The Output Routing for the AudioBox 1818 is as follows:

Output Routing



Please Note that if you want to listen to Headphones or the Main Out on your AudioBox VSL interface you'll need to set your outputs as follows: 

Main Output Routing
Headphone Output Routing
AudioBox 1818 VSL Outputs 1 and 2 Outputs 7 and 8
AudioBox 44 VSL Outputs 1 and 2 Outputs 1 and 2
AudioBox 22 VSL Outputs 1 and 2 Outputs 1 and 2

For the AudioBox 44VSL and 22VSL, your default settings for Output will be Output 1 on Left and Output 2 on Right, so there is no need for any changes.

In the case of the AudioBox 1818VSL, the audio routing is hard wired such that: 

  • Ch 7 and 8 are headphone out. 
  • Ch 7 and 8 also mirror Main Outs.

This way you can use the Main Mix and Headphone Knobs on the front of the 1818VSL to control Main Output and Headphone volume levels independently.

To change the Outputs on the AudioBox 1818VSL to 7 and 8, click "Output", then click on "Configure Speakers", 



Per the chart above select A 7 as the Left Front Output. 



Per the chart above select A 8 as the Right Front Output. 



Your final Audio Device Output will look like this. 

Click "Apply", then Click "Done"


Then close Audio MIDI Setup.

For standard computer use such as iTunes, YouTube, Movie Watching, etc, may choose need to toggle your output based on your needs. 

Now you can adjust your headphone mix using the headphone volume knob on the front of your AudioBox.

However if you want to then route the main output of the computer back to the main speakers, you'll need to come back to this menu and set outputs to be 1 for Left Front and 2 for Right Front. 

Another option would be to connect your studio monitors to outputs 7 and 8 on the back of the 1818 VSL. This will render the "Main" knob ineffective for adjusting your monitors volume, but the volume fader in OSX will work correctly. This will allow simultaneous output from the headphone jack and your studio monitors.

If you're using a DAW such as Studio One, you can use the Mixer to route your headphone mix using a Cue Mix which can be assigned to Outputs 7 and 8, this you can setup in your Mix Routing in your song. 

To Learn more about how to do this, click here

If you've arrived at this tutorial and you're on Mac OS X 10.11 wondering why you're reading this, please review this article detailing AudioBox VSL software and Mac OS X 10.11

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