
Make sure it sits all the way to the right.
Increase Output Volume as Much as Possible - Here’s yet another very important slider. That way your MacBook will emit sound evenly from both speakers. Check the Balance Slider - Make sure the slider is set in the middle. Here’s another specific detail worth keeping in mind: if your main output device (like a set of speakers, for instance) is connected to your MacBook through its 3,5mm headphone port, make sure to select the “Headphones” option for the main source. Is the right sound output source selected and highlighted? That’s the most important question. CalDigit Thunderbolt 3 dock which, while not currently used for sound output is still connected to the MacBook and can definitely take on that role should the user so desire. L24q-10 is the monitor to which the 3,5mm jack (AUX) is connected in this particular case. In the attached image, you can see a vast array of options: This includes its internal speakers along with any other devices that might be plugged in through its headphone port or connected via AirPlay. Make Sure the Right Sound Output Source is Selected - You are now presented with the full list of sound output devices that are available to your MacBook. Sound settings from MacBook’s System Preferences
Here you’ll have three tabs: Sound Effects, Output, and Input. Open up your System Preferences and then click on Sound. The first thing you need to do is check whether the right Output source is selected in your macOS settings. You came here searching for answers so here we go: How to Fix Low MacBook Volume The “troubleshooting process” down below is written in a very particular way, so start off at the beginning the fixes become more and more layered and comprehensive the further down the list you go. In fact, more often than not it can be solved within mere seconds! If your MacBook isn’t emitting any sound - or its volume happens to be too low and barely audible - you’ll be happy to know that fixing such an issue is neither complicated nor overly time-consuming! If Nothing Else Works, Reset Your NVRAM.
Low MacBook Volume | Try Resetting Your Core Audio.