![](https://help.apple.com/assets/6530581E577F6CB65B0199C5/653058271F7AFB604A0046B7/en_GB/4b2fc2149b381964a1e2f597ea68882e.png)
![The Configure Speakers window showing an aggregate device in the 3D Isometric View. In the list of six speakers at the bottom of the window appear the channels assigned to each speaker.](https://help.apple.com/assets/6530581E577F6CB65B0199C5/653058271F7AFB604A0046B7/en_GB/1429a1c024a0c48f31e67a78cbbb271d.png)
Create a surround sound environment
Connect external speakers to your Mac or other attached audio output device to create a surround sound environment in any room of your home.
![The MIDI Studio window showing various MIDI devices in Hierarchical View.](https://help.apple.com/assets/6530581E577F6CB65B0199C5/653058271F7AFB604A0046B7/en_GB/084195398b37653c804676fa7df7b75f.png)
Visually describe your MIDI device configuration
After you connect your MIDI devices — for example, keyboards and sequencers — use MIDI Studio to lay out and show the connections between them.
To explore the Audio MIDI Setup User Guide, click Table of Contents at the top of the page, or enter a word or phrase in the search field.