It’s Surprisingly Simple to Connect Your Mac to Multiple Bluetooth Speakers

Whether you're hosting a party or just cleaning the house, sometimes it's nice to have audio in multiple rooms. You could do that by running wires through your house, or by purchasing a multi-room audio system, but if you have a Mac you don't have to do any of that.

There's a feature that makes it possible to send your Mac's audio to multiple speakers, including Bluetooth ones. The feature is a little obscure, though—you won't find it in System Settings, or anywhere obvious.

No, to send audio to multiple devices on your Mac you need to open an application called Audio MIDI Setup, which you can find using Spotlight or by browsing to Applications > Utilities in Finder.

Credit: Justin Pot

Open the application and click the + button in the bottom-left corner, then click Create Multi-Output Device. You will see a list of all audio devices, including the built-in speakers, any wired audio outputs that are connected, any Airplay-compatible devices on your network, and any Bluetooth devices that support audio.

Credit: Justin Pot

Check as many of these as you like. You can give a name to your combined audio device, if you like, by clicking and holding the current name in the left-hand sidebar. Then you can switch to your new combined audio device by clicking the audio icon in your menu bar and selecting it.

I recommend putting on some music and testing things out, adding or removing devices. I had the best results by checking one device connected to my Mac using a wired and another that is connected by Bluetooth. Multiple Bluetooth devices tended to get out of sync quickly, though you can alleviate the syncing issues by checking the Drift Correction box for your wireless devices.

This isn't a perfect replacement for a proper multi-room audio system, but it works surprisingly well without the need to buy anything, run wires in your walls, or even purchase any software. Try it out the next time you feel like walking around your house listening to music.

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