Apple Silicon & AU Plugins: Everything You Need to Know

Apple Silicon Macs — M1 through M4 — run macOS on ARM architecture. Most AU plugins were originally built for Intel x86. Here''s what that means for your studio setup, and how to know which plugins run natively vs under Rosetta 2.

Native vs Rosetta 2 — what''s the difference?

Native means the plugin was recompiled for Apple Silicon (ARM64). It runs directly on the M-series chip with no translation layer. Lower CPU usage, lower latency, and better battery life on MacBook. Rosetta 2 is Apple''s translation layer that runs Intel x86 code on Apple Silicon. Most Intel plugins "just work" under Rosetta, often with no noticeable performance difference. But there are exceptions:

• Some plugins fail to authorise under Rosetta
• A minority crash or produce audio glitches
• CPU usage is higher (typically 10–30% worse)
• Logic Pro requires you to launch in Rosetta mode to use non-native AUs

How to check if a plugin is Apple Silicon native

In the Finder, right-click the plugin file (usually in /Library/Audio/Plug-Ins/Components/) and choose Get Info. Look for "Kind: Audio Unit (Universal)" — Universal means it contains both ARM and Intel code. On Composer HQ, every plugin is tagged: ⚡ Apple Silicon Native if it runs natively, or Rosetta Only if it requires Rosetta 2. Filter by "Native" to find the best-performing plugins for your M-series Mac.

Should you worry about Rosetta 2 plugins?

In most cases, no. Rosetta 2 is remarkably capable and transparent. A session with 50 Rosetta plugins will typically work fine on an M2 MacBook Pro. Where it does matter:

• Logic Pro native mode. If you want to run Logic Pro natively, all plugins must be native.
• Large template sessions. If you''re running 100+ instruments with dense orchestral templates, native plugins give you more headroom.
• Live performance. Any latency reduction from native execution helps when monitoring through plugins in real time.

Key plugin developers who''ve gone fully native

Most major developers updated within the first year of Apple Silicon: FabFilter, iZotope, Waves (post v14), Plugin Alliance, Soundtoys, Native Instruments, Arturia, and UAD (Spark). If you use plugins from these developers, you''re likely already running natively. Check our Apple Silicon Native collection to see which plugins we''ve verified.