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By  KV331 Audio

SynthMaster by KV331 is an award-winning ‘all-around’ semi-modular software synthesizer plugin available for Windows and MAC 32-bit & 64-bit (VST, AU Audio Units, RTAS). Find more below…

DOWNLOAD SIZE: 140 MB (WINDOWS .EXE) / 171.4 MB (MAC .DMG). available VERSION: SynthMaster 2.9.9
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all-around’ semi-modular software synthesizer

SynthMaster software synthesizer features different synthesis methods including VA, Additive, Wavetable, Wavescanning, Phase Modulation, Frequency Modulation, Pulse Width Modulation, Ring Modulation, Amplitude Modulation, Physical Modeling and SFZ Sample Playback synthesis. With its multi-synthesis oscillators, analog modelled/digital filters, flexible effects routing with 11 types of high-quality effects, and a massive modulation architecture with 95 separate modulation sources and 650+ modulation targets; SynthMaster is a ‘must-have’ for all synthesizer enthusiasts!

Synthmaster 2.9.9


Stereo Oscillators with Unison/Voice Stacking: Oscillators in SynthMaster have stereo output. Using the “voices”, “voices mix”, “detune curve”, “detune spread”, “pan stread”, “tone spread” and “phase spread” parameters, each basic/wavetable oscillator can generate a rich “supersaw” type sound.

Basic Oscillators

Basic oscillators in SynthMaster are capable of synthesizing many different types of waveforms: Sine, Square, Triangle, Sawtooth, Pulse, Noise, single cycle waveforms and multisampled WAV/AIFFs defined in SFZ files.

Each oscillator comes with 17 different algorithms in the following categories: Spectral (LP, HP, LS, HS, BP, BS), Bend (Bend+, Bend-, Bend+/-), Sync (Rect Window, Half Cos Window, Cos Window, Tri Window, Saw Window), Pulse (Pulse1, Pulse2) and Quantize.

  • Sine, Square, Triangle, Sawtooth, Pulse, Noise
  • Single cycle waveforms
  • Multisampled WAV/AIFFs defined in SFZ files

Wavetable Oscillators

A ‘Wavetable’ oscillator is similar to a basic oscillator, except that the waveform can be scanned (interpolated) through up to 256 different waveforms shapes. The position of the waveform can be adjusted using the ‘wave index’ parameter. Starting with version 2.9, SynthMaster now supports loading wavetables from wave files!

  • Contains many wavetables
  • You can import your own wavetables by drag and drop


Rich set of Effects: SynthMaster features 11 different effect types: Distortion, LoFi, Ensemble, Phaser, 6 Band EQ, Compressor, Vocoder, Delay, Chorus, Tremolo, Reverb.

11 types of effects

Distortion, LoFi, Ensemble, Phaser, 6 Band EQ, Compressor, Vocoder, Delay, Chorus, Tremolo, Reverb.

Flexible Effects Routing

Each of the 11 effect types can be inserted on any layer insert or on any of the 2 global effect bus inserts.

Before/Inside/After Filter Distortion

A distortion stage can be inserted before, after, or even inside the filters. For analog filters, the distortion is applied for each of the 4 filter stages in ‘inside’ mode.

Massive Modulation Architecture

SynthMaster has more hundreds of modulation targets and 48 modulation sources including ADSR Envelopes, 2D Envelopes, Multistage Envelopes, LFOs, KeyScalers, Easy Parameters, Vocoder Bands, MIDI Velocity, Aftertouch, Pitch Bend and MIDI CC. The modulation matrix, which has 64 available slots, has visual filtering as well so that targets for a specific source or sources for a specific target can be filtered and shown on the user interface.

  • ADSR Envelopes
  • 2D Envelopes
  • Multistage Envelopes
  • LFOs
  • KeyScalers
  • Vocoder Bands
  • MIDI Velocity
  • Aftertouch
  • Pitch Bend and MIDI CC

Additive and Vector Oscillators

An ‘Additive’ oscillator is actualy 8 ‘basic’ oscillators running together. Each ‘basic’ oscillator has its own detune, tone, phase/pulse width/algorithm parameter, frequency, waveform type and algorithm parameters.

A ‘Vector’ oscillator consists of 4 ‘basic’ oscillators, mixed at different ratios. The mix ratios are determined by 2 orthogonal parameters in 2 dimensions: ‘X Index’ and ‘Y index’.


  • Cross-platform VST, AU and AAX
  • 1800 Factory Presets
  • Stereo Oscillators with Improved Unison
  • Filters: Analog Filters, Digital Filters, Multimode Filters, Dual Filters, Comb Filters
  • Before/Inside/After Filter Distortion
  • Rich Set of Effects: Distortion, LoFi, Ensemble, Phaser, 6 Band EQ, Compressor, Vocoder, Delay, Chorus, Tremolo, Reverb
  • Multiple Skins: SynthMaster comes with 3 different skins in different colour variations
  • Importing MIDI patterns as Arpeggiator Sequence
  • Importing WAV/AIFF Multisamples as SFZ definitions

SynthMaster 2.9 key features:

  • Dual-layer semi-modular soft synth
  • Multiple synthesis including VA, Additive, Wavetable, PM, PWM, RM, AM, SFZ Sample Playback
  • 1,400 presets
  • Analogue, digital, multimode, comb and dual filters
  • Huge mod-matrix section
  • 2.9 update now supports wavetables synthesis, with up to 256 waveforms
  • Synth Master 2.9.9 New Update Available

You guys are gonna love my new single! Used synthmaster a lot f***ing love it!

Martin Garrix / Dutch-born DJ/Producer signed to Spinnin' Records.Belgium and the United Kingdom, and number 3 in Ireland.


Windows 7 and above

  • 2 GB RAM, 2 GHz CPU
  • VST Host supporting VST 2.4 plugins

Mac OS X 10.6 and above

  • 2 GB RAM, 2 GHz CPU
  • AU Host application

KV331 Synthmaster plug-ins is available in VST, AU (Audio Units), formats (all both 64-bit and 32-bit). PDF User Manual Included.

Instant Delivery!

Your software license code will be delivered by email in seconds.

No Returns on Software.

Once your software is activated it is not eligible for returns. Please contact us and we can send you more details about compatibility or system requirements prior to purchasing.



SynthMaster One + Two Bundle includes both SynthMaster One and SynthMaster software synthesizers. Grab no less than 3000 factory presets to jump-start your music production.



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