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KV331 Audio SynthMaster 3 Virtual Semi-modular Synthesizer Plug-in , $99.00 - Add to Cart Skip to Product Information

KV331 Audio SynthMaster 3 Virtual Semi-modular Synthesizer Plug-in

Virtual Synthesizer Plug-in with 7 Generator Modules, 32 Modulation Sources, Arpeggiator/Sequencer, Waveform/Wavetable/Multi-sample Editor, and 800 Factory-made Patches - AAX, AU, VST
KV331 Audio SynthMaster 3 Virtual Semi-modular Synthesizer Plug-in
KV331 Audio SynthMaster 3 Virtual Semi-modular Synthesizer Plug-in

Delivered In Minutes!

Delivered by download. Our unique partnership with KV331 Audio delivers your license code within minutes.

Software Is Not Returnable
Sorry, Software cannot be returned once it has been delivered. Contact your Sales Engineer or give us a call at (800) 222-4700 if you need any help with ensuring compatibility or finding the right version.
Compatible with:
Mac
Windows
AAX
AU
VST
Software Compatibility

Most software is compatible with both macOS and Windows, but check to make sure.

If you're using Pro Tools, AAX plug-ins are what you need. Most other DAWs on macOS support Audio Units (AU) plug-ins, while VST is compatible with many DAWs on both macOS and Windows. Be sure you choose plug-ins that work with your DAW!

To learn more about software compatibility, check out our buying guide.

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KV331 Audio SynthMaster 3 Virtual Semi-modular Synthesizer Plug-in
Delivered In Minutes!

Delivered by download. Our unique partnership with KV331 Audio delivers your license code within minutes.

Software Is Not Returnable
Sorry, Software cannot be returned once it has been delivered. Contact your Sales Engineer or give us a call at (800) 222-4700 if you need any help with ensuring compatibility or finding the right version.

Hands-on Sound Crafting with Potent Results

This article was Written By

Our Product Research Team

Get to know them!

An aptly named plug-in in its own right, SynthMaster 3 is the third iteration of KV331’s quintessential software instrument, packing brand-new oscillation options, effects, and enhanced tools to ensure rich, exclusive sounds are easier than ever to achieve. It all starts with SynthMaster 3’s layer-by-layer sound-building structure, pouring versatility into sounds at a seamless and interactive pace. Meanwhile, generative modules and effects assigned per layer drastically change the resulting sound, from rumbling bass lines to intense, jagged atmospheres. Further additions include an onboard arpeggiator and sequencer engine, waveform shaping, noise LFO modulation, filter modes, and an expanded preset browser. Sweetwater producers are in agreement: no matter your sound-building architecture of choice, KV331 Audio’s SynthMaster 3 proves its worth among any discerning synthesist.

Cultivate sounds layer by layer

Boasting the ability to handle up to 16 layers of sounds per instrument, SynthMaster 3 accounts for a bounty of possible creations, from independent leads to entirely blended soundscapes. Furthermore, 16 modules — generative and effects — can be assigned per layer to build the perfect sound directly from the ground up. Basic synthesis modules include a standard oscillator, additive oscillator, wavetable oscillator, and more, while new granular and VAnalog oscillator options open the doors for incredibly fine-tuned sound foundations, down to 16-voice, 32-grain output in the former. Topped off with over 10 built-in effect modules to choose from, administering exclusive instruments into your track is an exploratory journey that’s just as versatile as it is seamless to navigate.

Monstrous modulatory manipulation

As modules in SynthMaster 3 dictate sound, up to 32 modulation sources can be applied per layer for sculpting unique sonic shapes and standout textures. Standard ADSR envelopes, multi-stage envelopes, LFOs, step LFOs, noise LFOs, and an updated scaler tool supply more than enough utility to perform complex tasks. Likewise, modulation sources can easily be added, removed, bypassed, and activated to add even more in-depth character to sound to create rapidly changing, generative soundscapes. In conjunction with SynthMaster 3’s onboard arpeggiator and sequencer engine, operating controlled yet realistic sequences can easily be achieved via a simple MIDI connection.

KV331 Audio SynthMaster 3 Features:

  • Virtual semi-modular synthesizer plug-in armed with several synthesis modes for expansive sound versatility
  • Up to 16 layers per sound instance with 16 modules per layer for boundless blending potential
  • 7 onboard generator modules — basic oscillator, wavetable oscillator, vector oscillator, and more
  • New granular oscillator with 16-voice, 32-grain output (512 grains total)
  • VAnalog oscillator uses real-time output generation to mimic true analog circuit behavior
  • Each layer services up to 32 modulation sources for vast dynamic creations — ADSR and multi-stage envelopes, LFO, and scaler sources
  • Added noise LFO modulation source with white, pink, brown, violet, and blue noise options
  • Layer, track, and mix view types for a personalized, efficient workflow
  • Updated waveshaper effect engine with 3 new distortion algorithms and custom algorithm designer
  • 10 built-in effect modules — filters, modulation effects, waveshaper, and more
  • Redesigned Scaler modulation source
  • Built-in arpeggiator and sequencer engine with random trigger, hold, and slide parameter values
  • New phaser and formant filter modes
  • Intuitive preset browser loaded with 800 factory-designed patches

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.