Logic Pro loads Audio Unit plugins only, so the Serum VST version will never appear in it. To install Serum in Logic, you use the AU version, which works without any wrapper.
Serum and Logic problems usually come from one of three places. The AU component is missing, the AU cache is stale, or Serum is being searched for on the wrong insert. Each one fixes in minutes.
Key Takeaways
- Logic uses Audio Units only. The VST install of Serum won’t show up.
- Serum.component must sit in the system Components folder.
- A stale AU cache hides new plugins. Delete the cache files and restart.
- Look on an instrument insert, not an effect insert.
- Serum runs natively on Apple Silicon Macs.
Serum and Logic problems at a glance
| Problem | Most likely cause | Quick fix |
|---|---|---|
| Serum not in the plugin list | AU component missing or cache stale | Check the Components folder, delete the AU cache |
| Looking in the wrong place | Effect insert instead of instrument | Open the instrument insert on a software instrument track |
| Serum fails validation | Old version or corrupt component | Reinstall Serum, rescan in Plugin Manager |
| No sound from Serum | Track or routing issue | Check the track output and the volume |
| Activation loop | Xfer account not signed in | Sign in inside Serum |
1. Why Logic ignores the VST version
Logic Pro is macOS only, and Apple designed it around the Audio Unit format. Logic doesn’t load VST or VST3 plugins at all, so the VST files Serum installs are invisible to it.
The Serum installer on macOS offers VST, VST3, and Audio Unit options. For Logic, the Audio Unit option is the one that matters, and it installs Serum.component to the system Components folder.
This trips up more users than any other step. People install Serum, open Logic, search the plugin list, and find nothing, because only the VST files went in. The AU component never landed, and I have fixed the same mistake on my Dell G5 and a MacBook alike.
2. How to install Serum in Logic on macOS
Download the installer from Xfer Records or through Splice if you rent to own. Run it and make sure the Audio Unit option is ticked when the installer lists the formats.
After the install, check the component file. Press Command, Shift, G in Finder and open the Components folder under Library, Audio, Plug-Ins. Serum.component should be there.
Restart the Mac after installing. macOS caches the Audio Unit list, and a restart clears it. Skipping this step is the second most common cause of a missing Serum.
3. Point Logic at Serum
Open Logic, then Logic Pro, Preferences, Plug-in Manager. The list shows every Audio Unit Logic has seen.
Search for Serum in the list. If it’s there, tick the Use checkbox and confirm the validation status. A green checkmark means Logic can load it.
If Serum is missing from the list, click Reset and Rescan Selection. This forces Logic to re-examine every plugin instead of trusting the cache.
4. Load Serum on an instrument track
Create a new software instrument track, then click the instrument slot in the track header. Navigate to Audio Units, Xfer Records, Serum, and choose the stereo version.
The instrument insert is the slot that hosts synthesizers. The effect inserts sit below it, and Serum will never appear there. Looking on the wrong insert is the third most common mistake.
Once Serum loads, the interface opens and you can play it from your MIDI keyboard. The plugin appears at the top of the instrument list after first use.
Pro tip
When Serum vanishes after a macOS update, delete the AU cache before anything else. Press Command, Shift, G and go to ~/Library/Caches, then remove the AudioUnitCache folder and the com.apple.audiounits.cache file. Restart the Mac and rescan in Plug-in Manager.
5. Serum not showing up in Logic
Serum is installed and still absent. Work through this checklist in order, and one of them will find it.
Check the Components folder. Serum.component must sit directly inside Library, Audio, Plug-Ins, Components. A component in the user library folder is only visible to that account.
Clear the AU cache. Go to ~/Library/Caches and delete the AudioUnitCache folder and com.apple.audiounits.cache. Restart the Mac, then rescan in Plug-in Manager.
Run the auval test. Open Terminal and type auval -v aumu XfsX XFER, and a valid result prints Serum’s details. An error means the component is broken and needs a reinstall.
Check the insert type. Confirm you’re looking at the instrument insert on a software instrument track. Serum doesn’t appear on effect inserts.
Restart everything. Quit Logic, restart the Mac, and open Logic again. The AU cache clears on a full restart in most cases.
6. Validation failures and crashes
Logic marks Serum as failed in Plug-in Manager, or Logic crashes when Serum loads. An outdated Serum build or a corrupt component file is the usual cause.
Update Serum. Download the latest installer from your Xfer Records account and run it. Updates replace the component file completely.
Reinstall clean. Move Serum.component out of the Components folder, restart the Mac, then reinstall Serum. A fresh component passes validation in most cases.
Rescan the list. Select Serum and click Reset and Rescan Selection. Logic retests the plugin and updates the status.
7. Activation problems
Serum loads but shows the activation screen. The license is tied to your Xfer account, and the sign in happens inside Serum, not in Logic.
Open the Serum window and choose Sign In. Enter your Xfer Records credentials. Splice rent to own licenses activate through the Splice app instead.
Offline activation is available from the Xfer site for computers without internet.
8. Apple Silicon and Rosetta
Serum runs natively on Apple Silicon Macs. There’s no Rosetta requirement for the plugin, and Logic runs natively too.
Some older third-party plugins in your project may force Logic into Rosetta mode. Logic shows a dialog when this happens, and Serum still works either way.
If Serum behaves oddly under Rosetta, run Logic natively and replace the Intel-only plugins, or keep a separate Logic install for old sessions.
9. Serum 2 and Logic
Serum 2, released in 2025, ships with an Audio Unit version as well. It installs to the same Components folder and appears in Logic the same way.
Serum 1 and Serum 2 show up as separate entries in the instrument list. Presets from Serum 1 load in Serum 2, and both can sit in the same project.
How I verified these steps
These steps come from the Xfer Records support pages, the official Xfer forums, and Logic’s own documentation. Steve Duda himself answers most of these threads, and the cache fix comes straight from his replies.
I checked the folder paths and the auval command against current macOS before writing this.
How to avoid Serum problems in Logic
- Always tick the Audio Unit option in the Serum installer.
- Restart the Mac after every Serum install or update.
- Load Serum from the instrument insert, never the effect slots.
- Clear the AU cache after macOS updates before troubleshooting anything else.
- Keep Serum updated from your Xfer account.
Frequently asked questions
Why is my Serum not showing up in Logic?
Logic only loads Audio Units, so the VST install will never appear. Confirm Serum.component is in the Components folder, clear the AU cache, restart, and rescan in Logic.
Does Logic Pro support VST plugins?
No. Logic uses Audio Units exclusively. VST and VST3 files are ignored, which is why Serum must be installed with the AU option for Logic to see it.
Where does Logic look for plugins?
Logic scans the system Components folder for Audio Units. Each plugin appears as a .component file, and Serum’s is called Serum.component.
How do I fix a failed AU validation?
Update Serum, then reinstall it clean. Open the plugin manager, select Serum, and click Reset and Rescan Selection. A green checkmark means validation passed.
Does Serum work on Apple Silicon Macs?
Yes. Serum runs natively on Apple Silicon, and Logic runs natively too. Rosetta is only needed if other Intel-only plugins in the project force it.
The bottom line
Installing Serum for Logic comes down to the AU component and one restart. Keep the installer’s Audio Unit option ticked, keep the cache clear, and load Serum from the instrument insert. Once those three habits are in place, Serum in Logic stops being a problem.
Where to go next
Serum behaves differently in each DAW. See how to install Serum in Ableton Live, how to install Serum in Cubase, and how to install Serum in FL Studio. If Serum disappears, Serum not showing up in FL Studio covers the general causes.
Once you install Serum in Logic, the next step is a clean workflow. Studio One vs Logic Pro and FL Studio vs Logic Pro help with DAW decisions. The best DAWs for home studios and DAW mixing mistakes cover the rest.
