Serum 2.1.5 — macOS

Serum 2 runs on macOS 10.13 and later, Intel and Apple Silicon both supported. The build label on this release is Xfer Records Serum 2.0.24 (Team V.R, Update only). Before you install, here are the practical questions people ask.

Common questions about Serum 2 on macOS

• Works on both Intel and M-series Macs.
• Is it the full version? This is Serum 2.0.24, a complete wavetable synthesizer. It includes flangers, phasers, comb filters that track the played note, and sample-rate reduction as a filter process.
• Can I edit wavetables in real time? Yes — creating, importing, editing, transforming, and modulating wavetables is built in. You can also stack one oscillator to use up to 16 voices.
• What filter types are included? The same filter types found in LFOTool plus new ones.

About the installation

The standard installation procedure applies. After that, apply the patch, then follow the included installation and activation instructions file. Open the VR.nfo file for the full instructions. As always, make a backup of your current VST or Audio Units folder before making changes.

Once the installation is done and you've confirmed Serum shows up in your DAW's plugin list, the first few sessions are about getting comfortable with where everything lives. Here's what I've found useful when setting up a new synth like this one.

Start by loading a single wavetable oscillator

Start by loading a single wavetable oscillator and playing with the Unison WT Pos parameter. It assigns a different waveform to each unison voice, which can give you a thick, evolving sound without touching the modulation matrix. It's one of those features that makes more sense when you hear it than when you read about it.

Try the Stack setting next. Stacking one oscillator to use up to 16 voices lets you layer notes such as octaves, so a single pressed note sounds fuller. Start with a simple saw wave, add a couple of stacked octaves, and you'll hear the difference immediately. From there, experiment with the advanced unison parameters on each oscillator — they control how detuned and spread the voices are.

Spend a little time with the dual filter types. You can switch between two filter types or blend them, which gives you more tonal variety than a single filter section usually allows. The flangers, phasers, and comb filters that track the played note are worth trying early, too — they behave differently from standard synth effects because they follow your pitch.

Sample-rate reduction as a filter process is another thing to test in those first days. It's not a typical filter; it adds a lo-fi character that can sit nicely on top of a wavetable or underneath a clean pad. Try it on a bass patch with the cutoff moving slowly.

Unison Warp creates a stereo spread

A few things in Serum 2 don't jump out at you from the interface but are worth knowing about. The Unison Warp parameter sets the unison voices differently from each other, so you can get a stereo spread that changes texture across the keyboard. It's tucked into the unison controls but it's not the same as standard detune.

The ability to import and edit your own wavetables is straightforward once you find the right menu. You can transform an existing wavetable or build one from scratch and modulate it in real time. If you work with samples, this is where Serum 2 becomes more than a preset machine.

The modulation system itself is deep, but you don't need to route everything manually. Some parameters are pre-assigned to common modulation sources, and you can see those assignments at a glance. Changing a modulation amount is as simple as clicking and dragging in the modulation window.

One more thing: the filter types from LFOTool are here, but so are new ones. Don't assume you know them all from the name. Some of the new filters respond differently to envelope and LFO modulation, so auditioning each one with a simple saw wave is worth the few minutes.

Begin with a raw waveform then add unison

I start a session by loading a basic wavetable — something like a digital saw or a vocal formant. I set the first oscillator to a single voice with no unison at first, just to hear the raw waveform. Then I add a second oscillator, stacked with an octave down, and set its unison to 4 voices with the WT Pos spread a little.

Next, I go to the filter section. I pick a low-pass filter from the LFOTool family and set the cutoff around halfway. The dual filter mode lets me add a high-pass on top, so I switch between them using an LFO to get a sweeping effect. I adjust the filter envelope attack and release until the sound breathes the way I want.

For modulation, I assign an LFO to the wavetable position on oscillator one. That's where Serum 2's real-time wavetable modulation comes in — the waveform morphs as the LFO cycles. I set the LFO rate to match the tempo and adjust the depth until the movement is subtle but audible.

I add a comb filter that tracks the note I'm playing, which gives the sound a metallic resonance that follows the melody. Then I dial in a little flanger on the effects section, keeping the mix low so it doesn't overwhelm the wavetable motion.

Toward the end of the session, I go back and adjust the Stack settings. I add a third octave layer on the second oscillator, bringing the total voices to around 12. The sound gets fuller, but because the unison parameters are spread, it stays wide without getting muddy. I save the preset and move on to the next patch.

Wavetable editing is more hands-on than Massive

If you've used Serum before, you know it sits in a particular spot between pure wavetable synths and more modular instruments. Compared to Native Instruments Massive, Serum 2's wavetable editing is more hands-on — you can import and edit your own waveforms in the plugin itself, whereas Massive relies more on its included wavetables and modulation routing. Both have powerful unison and filter sections, but Serum 2's dual filter types and note-tracking comb filters give it a different character for sound design.

Against Arturia Pigments, Serum 2 is more focused on wavetable manipulation as a core workflow. Pigments offers multiple synthesis engines (analog, wavetable, granular, and sample) in one interface, so it's broader in scope. But if wavetable synthesis is your main interest, Serum 2's dedicated approach to real-time waveform transformation and its advanced unison parameters feel more direct and less menu-driven.

Compared to u-he (often called Serum 2's spiritual cousin for sound design), Serum 2 has a more traditional layout with a clear signal flow. U-he synths like Hive or Zebra offer deep modulation matrices and unique filter types, but their interfaces can take longer to learn. Serum 2's filter types from LFOTool plus its new filters, combined with the stack and unison controls, give you a lot of control without requiring you to patch every connection manually.

None of these are better or worse — they're different approaches to synthesis. Serum 2's strength is that it keeps wavetable manipulation and modulation visible and adjustable without burying features in submenus. For macOS users running 10.13 or later on either Intel or Apple Silicon, it's a solid choice if you spend most of your time shaping wavetables and want unison controls that go beyond simple detune.

• macOS 10.13 or later
• Intel or Apple Silicon
• Interface language: English