Apple Opens AirPods Beta Firmware 9A5336b to Public Testers on 4 Models

Q: Is Apple's highly anticipated custom EQ feature actually a game-changer, or just a basic tool struggling to catch up with third-party apps?

Apple’s custom EQ looks more like a meaningful catch-up feature than a true game-changer. For AirPods users, it matters because Apple has long relied on automatic Adaptive EQ with no manual tuning at all. The new beta firmware finally adds direct control over bass, mids, and treble in the AirPods settings page, tied to iOS 27, iPadOS 27, and macOS Golden Gate. That is a real quality-of-life upgrade, especially for users who want modest bass boosts, clearer mids, or a quick way to tailor sound without extra apps. But the early evidence suggests Apple’s implementation is basic. Reports from beta testers describe a simple three-band EQ with limited precision, far behind rival headphone apps from Sony and others that offer much more detailed multi-band tuning. Some users say the new controls produce small improvements in clarity or low-end response, but not a dramatic transformation. That makes it more of a mainstream convenience feature than a serious audio tool for enthusiasts. Its biggest strength may be integration, not depth. Because it is built directly into Apple’s settings and works across supported H2-based AirPods models, it removes friction and gives ordinary users an easy, native way to personalize sound. For many buyers, that may be enough. So the feature is important for Apple’s ecosystem, but it does not appear to redefine AirPods audio. At least in beta, it is a welcome, overdue addition that narrows the gap with third-party apps rather than surpassing them.

3 articles · Updated · MacRumors · Aug 11

Build 9A5336b is now available to public beta testers for AirPods Pro 2, AirPods Pro 3, AirPods 4 and AirPods Max 2, matching the developer beta Apple released last week.
iOS 27, iPadOS 27 and macOS Golden Gate use the firmware to unlock a new AirPods interface, an Adaptive mode slider, custom EQ support and compatibility with the new Siri AI.
Devices running iOS 26, iPadOS 26 or macOS 26 or later show a beta firmware toggle in AirPods settings; users install the update by connecting the earbuds to an Apple device and power.
AirPods firmware still updates without a manual software-update button, so installation can take several hours as Apple broadens pre-release testing beyond developers.