Studio Application 1
Electronic, pop, and film composers who need distinctive hardware-inspired or wavetable tones without menu-diving through bloated libraries.
Fat Berry DSP / Synth plug-ins Buying Guide
Build the part the track actually needs.
Fat Berry DSP synthesizer plug-ins cover wavetable, subtractive, FM, and bass-focused synthesis in 64-bit VST3 and AU formats. Choose a deep multi-oscillator engine like 53,830 Waves for evolving sound design, or a focused voice architecture like FB-60 and Synth Berry for fast, mix-ready musical parts. Iron Curtain: A layered synth: Synth, Strings, Oddity and Wavetable under one Blok macro. Synth Berry: Build playable sounds with oscillators, a resonator and dual filters. 53,830 Waves: A wavetable synth with a second oscillator in seven models, from FM to Swarm. Choose the part you want to play before choosing a synthesis method. A bass needs a clear relationship with the kick, while a pad needs room around the vocal. Start with a preset close to that role, play a complete phrase and change one control at a time. Check the envelope against your song tempo. Save the patch with the session so you can return to the same sound when the arrangement changes. Start free with FB-60, which is free to keep.
Written & tested by Rory Browne (Founder & DSP Developer) · Last updated:
Compare 12 synth plug-ins
Use Cases & Fit
Who synth plug-ins are for — and how to choose
A good synthesizer choice is an arrangement decision first. A wide stereo pad, a phase-locked sub bass, and a percussive pluck occupy completely different spectral and stereo footprints. Pick the synth whose oscillator and filter topology gets you to the musical phrase fastest.
Studio Application 2
Mix-minded producers who want synthesizers voiced to sit cleanly beside acoustic drums, vocals, and electric bass.
Studio Application 3
Sound designers looking for free and affordable perpetual-licence VST3/AU instruments with built-in modulation and randomisation.
At the desk
How do you choose and dial in synth plug-ins?
Start with the arrangement role
For bass, prioritise a phase-consistent oscillator and a snappy filter envelope that leaves the kick drum room. For pads, look for wavetable scanning or chorus width. For leads, focus on oscillator sync, drive, and portamento response.
Choose a workflow you will finish
Deep wavetable and modulation matrices reward exploratory sound design, while compact six-to-ten-control instruments keep you focused on melody and harmony during a writing session.
Check the patch in the full mix context
Solo synth presets are often voiced with excessive stereo width, long reverb tails, and heavy sub-bass. Audition every patch against your kick, snare, and lead vocal, then trim filter cutoff and unison spread until it locks into its lane.
Evaluate velocity and automation response
A synth part comes alive when filter cutoff, envelope decay, or wave position responds to velocity and host automation across eight or sixteen bars.
Signal-chain placement
Run the synth instrument first, follow with a high-pass filter if it is not the primary bass element, and place rhythmic delay or bus reverb after any tonal EQ.
Side-by-side specifications
Synth plug-ins comparison table
The specifications below come from the published catalogue and release metadata. All licences are perpetual single-user licences (3 machine activations, 14-day full refund window).
| Plug-in | Price (USD) | Formats | OS Support | Best For / Sonic Role | Walkthrough |
|---|---|---|---|---|---|
| Iron Curtain | $19.99 | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 11.0 | A layered synth: Synth, Strings, Oddity and Wavetable under one Blok macro. | Watch demo ↗ |
| Synth Berry | $59.99 | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 11.0 | Build playable sounds with oscillators, a resonator and dual filters. | Watch demo ↗ |
| 53,830 Waves | $24.99 | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 11.0 | A wavetable synth with a second oscillator in seven models, from FM to Swarm. | Watch demo ↗ |
| LOW | $24.99 | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 11.0 | Seven bass flavours, direct macros and glide that follows the way you play. | Watch demo ↗ |
| FB-20 | $24.99 | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 11.0 | A two-oscillator instrument for biting basses, wiry leads and unruly modulation. | Watch demo ↗ |
| FB-2823 | $24.99 | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 11.0 | From pointed analogue-style bass to polyphonic textures with a moving stereo filter. | Watch demo ↗ |
| Work Horse | $49.99 | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 14.0 | A four-slot synth with ten engines, from Analog and FM to Granular and Spectral. | Watch demo ↗ |
| Frighten | $24.99 | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 11.0 | A sample-based synth for playable keys, layered textures and drum programs. | Audio & specs ↗ |
| FB-60 | Free ($0) | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 11.0 | A polyphonic analogue-style synth with classic chorus and effects built in. | Watch demo ↗ |
| Nana | $14.99 | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 11.0 | Two oscillators, a ladder filter and a virtual patch bay that invite hands-on playing. | Watch demo ↗ |
| FB-985 | Free ($0) | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 14.0 | A three-oscillator wavetable synth with two filters and four envelopes. | Audio & specs ↗ |
| FB-XD | Free ($0) | VST3, AU | Windows 10 or later, 64-bit (x86-64) · 11.0 | Analogue-style oscillators meet a digital MULTI engine, motion sequencing and stereo effects. | Watch demo ↗ |
How we test at -16 LUFS
Listening tests & common mix mistakes to avoid
Primary listening check
Play an eight-bar loop with the synth at normal level, muted, and dropped by 6 dB. If the hook disappears when dropped by 6 dB, adjust the filter resonance and octave register before turning the fader up.
Four-step studio audition checklist
- Test note-on phase consistency across 16 repeated sixteenth notes at 120 BPM to ensure bass and pluck attacks stay solid.
- Sweep the main filter cutoff slowly while playing a high MIDI note to check for stepping or aliasing.
- Collapse the master bus to mono and confirm that unison or stereo chorus patches do not vanish or phase-cancel.
- Verify CPU load under 8-voice polyphony with release tails overlapping at your session buffer size.
Common mistakes when using synth plug-ins
- Stacking three wide unison synth layers in the same 250–600 Hz octave register.
- Leaving long amp-envelope release tails on bass patches so notes blur harmonic changes.
- Over-compressing a synth part that simply needed consistent MIDI velocity or envelope shaping.
The tools
Synth plug-ins, made by Fat Berry.
Each card links to current formats, controls, demos and the live price on its product page.
Synth
Iron Curtain
A layered synth: Synth, Strings, Oddity and Wavetable under one Blok macro.
Hear and inspect Iron Curtain ↗
Synth
Synth Berry
Build playable sounds with oscillators, a resonator and dual filters.
Hear and inspect Synth Berry ↗
Synth
53,830 Waves
A wavetable synth with a second oscillator in seven models, from FM to Swarm.
Hear and inspect 53,830 Waves ↗
Synth
LOW
Seven bass flavours, direct macros and glide that follows the way you play.
Hear and inspect LOW ↗
Synth
FB-20
A two-oscillator instrument for biting basses, wiry leads and unruly modulation.
Hear and inspect FB-20 ↗
Synth
FB-2823
From pointed analogue-style bass to polyphonic textures with a moving stereo filter.
Hear and inspect FB-2823 ↗
Synth
Work Horse
A four-slot synth with ten engines, from Analog and FM to Granular and Spectral.
Hear and inspect Work Horse ↗
Synth
Frighten
A sample-based synth for playable keys, layered textures and drum programs.
Hear and inspect Frighten ↗
Synth
FB-60
A polyphonic analogue-style synth with classic chorus and effects built in.
Hear and inspect FB-60 ↗
Synth
Nana
Two oscillators, a ladder filter and a virtual patch bay that invite hands-on playing.
Hear and inspect Nana ↗
Synth
FB-985
A three-oscillator wavetable synth with two filters and four envelopes.
Hear and inspect FB-985 ↗
Synth
FB-XD
Analogue-style oscillators meet a digital MULTI engine, motion sequencing and stereo effects.
Hear and inspect FB-XD ↗In-depth technical guides
Related production & mixing guides
Studio notes
Read it, then hear it.
Frequently Asked Questions
Synth plug-ins FAQ
Which Fat Berry DSP synth plug-ins are completely free?
FB-60, FB-985 and FB-XD are available free ($0 USD) in the Free Pickings collection with full Windows VST3 and Mac VST3 / AU installers.
Can I automate synth parameters in Ableton Live, Logic Pro, and Reaper?
Yes. Every exposed control on our synth plug-ins is registered with the host parameter tree for sample-accurate DAW automation and controller mapping.
Do Fat Berry DSP synths include factory presets and randomisation?
Yes. Each synth includes curated factory presets plus our header preset randomiser for instant patch variations.