SynthMaster 3
SynthMaster 3 is a modular software synthesizer for Windows and macOS, available as a plug-in and standalone app.
What SynthMaster 3 is
SynthMaster 3 is a modular software synthesizer for Windows and macOS, available as a plug-in and standalone app. Its sound-generation methods include VAnalog, additive, vector, wavetable, granular, phase and frequency modulation, phase distortion, pulse width and ring modulation, physical modeling, and SFZ sample playback. It includes 3150 factory presets. An instance can contain up to 16 layers, each with up to 16 modules and 32 modulation sources. Waveform, wavetable, and multi-sample editors are included; multi-samples can be imported from WAV or AIFF files and exported in SFZ format. Each layer has a separate MIDI output channel for routing arpeggiator or sequencer MIDI to different DAW tracks. Plug-in formats are VST2, VST3, AudioUnits, and AAX. SynthMaster 3 costs $99, paid once and includes 6 free expansions. A Free Player is available, and the demo stops after 30 minutes, emits noise every minute, and disables WAV wavetable and SFZ multi-sample export. Demo presets can only be opened in the paid plug-in.
Good
- Includes 3150 factory presets.
- Each instance supports up to 16 layers.
- Imports WAV and AIFF multi-samples.
- Available as a standalone app and plug-in.
- Includes 6 free expansions.
Watch out
- The demo stops after 30 minutes.
- The demo emits noise every minute.
- Demo export options are restricted.
Who it suits
SynthMaster 3 suits music makers seeking a modular synthesizer with multiple synthesis methods, editing tools, and DAW routing options. Its standalone app and plug-in formats support Windows and macOS workflows.
Verdict
SynthMaster 3 combines a modular architecture with extensive synthesis methods, preset content, and multi-sample editing. The demo has notable restrictions, while the full product costs $99, paid once.
Plans and prices
From SynthMaster 3's own pricing page, checked 15 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| SynthMaster 3 | $99, paid once | Includes 6 free expansions · VST2/VST3/AudioUnits/AAX · Regular Price: $99.00 |
| SynthMaster 3 Free Beta | Free | One layer · one oscillator/filter/waveshaper · 4 modulation sources · 16-voice polyphony · SFZ/WAV export disabled |
| Upgrade from SynthMaster 2 | $29, paid once | For SynthMaster 2 owners |
| SynthMaster 3 upgrade from SynthMaster 2 | $29, paid once | Requires SynthMaster 2 license · Upgrade price: $29.00 |
| Upgrade from SynthMaster One | $49, paid once | For SynthMaster One owners |
| SynthMaster 3 upgrade from SynthMaster 3 Player | $49, paid once | Requires SynthMaster 3 Player license · Upgrade price: $49.00 |
| SynthMaster 3 upgrade from SynthMaster One | $49, paid once | Requires SynthMaster One license · Upgrade price: $49.00 |
| Upgrade from SynthMaster 3 Player | $49, paid once | For SynthMaster 3 Player owners |
| Everything Bundle | $249, paid once | SynthMaster One, 2 and 3 · 60+ expansion banks · 8,000+ presets · current and future banks · Regular price: $249 |
The facts
Each one read from SynthMaster 3's own pages, with the date it was checked.
What it does
- API and SDK
- The inspected official product, download and FAQ pages document plug-in formats and user installation but provide no public API or SDK documentation.checked 15 Oct 2026
- Arpeggiator and sequencer
- Every layer has its own arpeggiator and sequencer with randomized trigger, hold and slide values and a separate MIDI output channel for DAW routing.checked 15 Oct 2026
- DAW routing
- Each layer has its own MIDI output channel so arpeggiator or sequencer MIDI can be routed to different DAW tracks.checked 4 Oct 2026
- Demo limits
- The paid-feature demo stops after 30 minutes, adds noise every minute, restricts reopening saved presets to paid instances, disables SFZ/WAV exports and uses 13-bit factory samples.checked 15 Oct 2026
- Documentation depth
- KV331’s downloads page exposes a SynthMaster 2.8 manual, while an independent 2026 report says written SynthMaster 3 documentation was absent and an unofficial manual was created.checked 15 Oct 2026
- Editing views
- Layer, Track and Mix views provide single-layer editing, multi-layer performance sequencing and effects mixing.checked 15 Oct 2026
- Editors
- Waveform, wavetable and multisample editors support freehand or curve editing, WAV wavetable export and SFZ multisample export.checked 15 Oct 2026
- Factory content
- The current official product page lists 3,150 factory presets created by named sound designers.checked 15 Oct 2026
- Factory presets
- The product page says SynthMaster 3 includes 3150 factory presets.checked 4 Oct 2026
- Formats
- Desktop plug-in formats are VST2, VST3, AudioUnits and AAX.checked 15 Oct 2026
- Granular oscillator
- The granular oscillator reaches 16 voices with up to 32 grains per voice, or 512 grains per oscillator, with per-voice spreading and randomization.checked 15 Oct 2026
- Installation footprint
- The June 2026 demo downloads are about 1.0 GB for Windows and 1.1 GB for macOS.checked 15 Oct 2026
- Installation limit
- The FAQ says SynthMaster may be installed on up to five machines at a time.checked 4 Oct 2026
- Layering
- Each instance supports up to 16 layers, and every layer can contain up to 16 modules.checked 15 Oct 2026
- Licence
- The EULA grants a proprietary, nonexclusive licence for one user and prohibits reverse engineering, decompilation and derivative works.checked 15 Oct 2026
- Limit: effects quality
- Bonedo found the effects serviceable but less impressive than the synthesis engine and described them as mostly standard.checked 15 Oct 2026
The company
- Company founding
- KV331’s About page says Bulent Biyikoglu founded KV331 Audio in 2004.checked 15 Oct 2026
- Company headquarters and size
- LinkedIn lists KV331 Audio as privately held, headquartered in Çankaya, Ankara, with 2–10 employees and a 2012 founding date.checked 15 Oct 2026
- Company legal name
- The official footer and EULA identify the company as KV331 Yazilim Limited Sirketi, also rendered as KV331 Yazilim Ltd. Sti.checked 15 Oct 2026
- Founded
- 2004checked 28 Sep 2026
Money
- Free beta limits
- The October 2026 Free Beta is limited to one layer, one oscillator/filter/waveshaper, two mods, one operator, four modulation sources, 16 matrix entries, 16 voices and eight-voice unison.checked 15 Oct 2026
- Free demo
- The demo stops after 30 minutes, emits noise every minute, and disables WAV wavetable and SFZ multi-sample export; demo presets can only be opened in the paid plug-in.checked 4 Oct 2026
- Free Player
- KV331 Audio provides SynthMaster 3 Free Player downloads for Windows and macOS.checked 4 Oct 2026
Where it runs
- Limit: iOS editing
- The iOS Player cannot edit layer modules or modulation sources, functioning mainly as a preset player and layer-performance editor.checked 15 Oct 2026
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