Apple intentionally caps macOS volume at 100% for two reasons: hearing protection and hardware design. Macs are designed with quality audio in mind, and Apple engineers determined that the hardware can safely reproduce maximum volume at the 100% system level.
But real-world usage reveals the problem: some content is recorded at low levels, headphones vary in efficiency, and users have different hearing sensitivities. So even though Apple's math says 100% should be enough, many Mac users find their audio frustratingly quiet.
The good news: there are legitimate ways to push past this limit. Let's go through them.
If your audio problem is specific to browser content — YouTube, Netflix, Spotify, online calls — the fastest solution is a browser extension.
Sound Booster extension for Chrome amplifies any browser tab up to 5x, independently of your Mac's system volume. This works on Mac just as well as on Windows.
Why use this instead of increasing system volume?
How to install:
This solves 80% of Mac audio complaints in 30 seconds. If you only need louder browser audio, you're done.
macOS allows you to set individual volume levels for each app. Sometimes one app's low volume affects overall perceived loudness.
Steps for macOS 12 and later:
On Mac, per-app volume control is more limited than on Windows. Your best bet is to ensure your chosen output device (speakers, headphones, etc.) is selected and set to maximum.
Pro tip: Some apps like Spotify and Apple Music have their own volume controls. Make sure those are also at 100%.
If you need system-wide volume boosting (not just browser), Mac has dedicated audio enhancement software that can increase volume beyond the system cap. For comparison with other audio tools, check our Windows equalizer apps guide and online amplification solutions.
Boom 3D ($40, 7-day free trial)
Boom 3D is one of the most popular audio enhancement apps for Mac. It amplifies your system audio, adds equalizer controls, and includes spatial audio effects.
Silenz (Freemium)
Silenz is a lighter, free alternative focused on volume control.
These apps sit between your audio output and speakers/headphones, allowing them to amplify and process sound before it reaches your hardware. They effectively push past macOS's 100% limit.
A Digital-to-Analog Converter (DAC) is a small device that converts digital audio (from your Mac) into analog sound with higher amplification than your Mac's built-in audio.
What it is: A USB device that connects to your Mac and acts as a more powerful audio output. You then connect your speakers or headphones to it.
Popular options:
Why this works: Your Mac's built-in audio hardware has inherent amplification limits. An external DAC/amp bypasses these limits and provides true amplification, giving you much louder, cleaner audio.
This is the most expensive option but also the highest quality. It's ideal if you care about audio quality and want a permanent solution.
Sometimes your Mac is outputting audio to a device with low volume capability, and you don't realize it.
Steps:
Common issue: Your Mac might be set to output to AirPods or a Bluetooth speaker with low individual volume, while your built-in speakers could be louder. Try switching outputs and testing.
Also check if your headphones or speakers have physical volume knobs — sometimes they're accidentally turned down.
Mac and Windows handle audio slightly differently:
The point: Windows users have more system-level options, but Mac users have excellent third-party software. Neither is objectively better — they're just different.
If you need louder audio on Spotify: Try Spotify louder on Mac — includes Spotify-specific tips plus general Mac boosting methods.
If you use AirPods: See our guide on how to increase volume on AirPods — addresses limitations specific to AirPods.
If you want to boost browser audio: Sound Booster extension is your best bet for Chrome and Edge. Safari doesn't support extensions, so you'd need system-level boosting (Boom 3D) instead. For headphone usage, check our cross-platform guide.
Sound Booster is a Chrome/Edge extension and doesn't work in Safari. If you primarily use Safari, you have two options:
Safari is Apple's browser and doesn't support most extensions, so this is a structural limitation, not a Sound Booster issue.
For YouTube, Netflix, Spotify, and other browser content, Sound Booster boosts volume up to 5x instantly. Works on Mac, Windows, and Linux.
Install Sound Booster — FreeIf you also use Windows, check our Windows sound boosting guide. iPhone users and Android users have their own platform-specific solutions. For gaming, see our gaming audio guide.