Mac audio output keeps changing? Here is how to keep it on your speakers.

Sound jumped to the monitor again, or your AirPods grabbed it from across the room. Device changes can alter the system output. Here are the settings to check and options for managing your preferred available device.

Guide by Yash Raj, published 7 September 2026. Tested on macOS 13 through macOS 26.

The short answer

macOS treats the default output the same way it treats the default microphone: a system-wide selection that can change when devices appear or disappear. A display or reconnecting headset may become the default. If the current output disconnects, macOS must use another available device.

There is no built-in way to say "prefer these speakers" or "never use the display." You can work around it by unplugging, by picking an output inside the app that is playing, or by running a utility that keeps a ranked list and switches back.

Why does my Mac keep switching audio output?

An external display with speakers. HDMI, DisplayPort, USB-C, and Thunderbolt displays expose an audio device. Connect one, wake the Mac, or reconnect a dock and macOS may route sound to it.
AirPods and Bluetooth headphones. Automatic connection can change the selected output or input. Check the actual device selected in macOS and your app.
Sleep, wake, and docks. A wake can change the set of available devices. A dock that drops and re-adds its audio chip looks to macOS like a brand new device.
Unplugging headphones. When the current output disappears, macOS chooses a replacement by its own rules, which are not your rules.

Apple's own support article describes the display case directly: selecting the display's speakers may revert to headphones or external speakers, and the fix is to unplug them first. That advice applies to the display/headphones case described in the article.

How to keep your Mac on the right speakers or headphones

Choose the output from the menu bar. Hold Option and click the Sound icon, or open Control Center, Sound, and pick the device. Then test whether it stays selected after your usual device changes.
Tame the display. If you never want display speakers, you cannot disable them in macOS, but you can avoid selecting them and keep real speakers connected. Some displays offer audio controls in their own menu; turning sound off may only mute it, so check whether the device remains available to macOS.
Stop AirPods auto-connecting. System Settings, Bluetooth, info button next to the AirPods, Connect to This Mac set to "When Last Connected to This Mac."
Use an app-level output. If the affected app offers an output-device selector, choosing a named device can bypass the system default for that app. Availability and reconnect behavior vary.
Run a priority list. Rank your outputs once. A priority utility can restore a preferred available default after device changes; behavior depends on its settings and the app using audio. Roadie also keeps a separate preference for speakers and headphones, so connecting headphones flips to them and disconnecting the last pair flips back to speakers.

How Roadie handles output

Roadie keeps two ranked lists, one for outputs and one for microphones, plus an avoid list that skips devices when a non-avoided option is available. An avoided device can still be a last-resort fallback. Display speakers are the usual first entry. Bluetooth devices get a settling window so a reconnect storm does not cause double switches, and every correction shows a notification with one-click undo.

If you deliberately pick a different output, Roadie respects it until your devices change. If something keeps fighting the correction, Roadie stops after three attempts and tells you rather than looping.

Try Roadie free for 7 days $9.99 once after that. No account, no audio access.

Quick answers

How do I stop my Mac from switching sound to the monitor?

macOS cannot ignore a display's speakers. Either turn audio off in the display's own menu if it offers that, reselect your speakers after each connect, or run a priority utility that puts display speakers on an avoid list and switches back automatically.

Why do my AirPods keep taking over my Mac's audio?

AirPods can connect automatically and may become the selected audio device, depending on your setup. Set Connect to This Mac to When Last Connected in Bluetooth settings, or rank them below your speakers in a priority utility.

Can macOS remember my preferred speakers?

System Settings selects the current output but does not provide a ranked preference list. Device changes can alter that selection; test the specific reconnect that affects your setup.

Does Roadie work with Bluetooth headphones and USB interfaces?

Roadie selects among audio devices exposed by macOS. It gives Bluetooth connections a settling window, but cannot repair connectivity or guarantee compatibility with every headset or interface. Test your setup during the trial.