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KV331 Audio SynthMaster One Wavetable Synthesizer Software Instrument , $49.00 - Add to Cart Skip to Product Information

KV331 Audio SynthMaster One Wavetable Synthesizer Software Instrument

Semi-modular Soft Synth Plug-in with Wavetable Synthesis, 2 Oscillators, 2 Sub-Oscillators, 2 Zero-delay Feedback Filters, Arpeggiator/Sequencer, 4 ADSR Envelopes, 2 LFOs, 11 Effects, and 500 Factory Presets - AAX, AU, VST
KV331 Audio SynthMaster One Wavetable Synthesizer Software Instrument
KV331 Audio SynthMaster One Wavetable Synthesizer Software Instrument
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 One Wavetable Synthesizer Software Instrument
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.

Meet Your New Wavetable Soft Synth

This article was Written By

Our Product Research Team

Get to know them!

Although KV331 Audio SynthMaster One shares the same sound engine with its bigger sibling SynthMaster, SynthMaster One is streamlined to a single-layer, single-screen design and features wavetable synthesis plus many more new features. With its simple layout, rich wavetable/waveform content, and 500 inspiring factory presets, crafting sounds in SynthMaster One is lightning-fast and tons of fun. It's semi-modular, so routings are normalled for quickly whipping up killer patches. Ready to roll up your sleeves and dive in deep? This synth has everything you need: two oscillators, two sub-oscillators, two zero-delay feedback filters, a 16-step arpeggiator/sequencer, four ADSR envelopes, two LFOs, and 11 studio-grade effects. Factor in its 500 world-class presets and refreshingly mild pricetag, and you've got your new wavetable soft synth.

True wavetable synthesis, with all the trimmings

In SynthMaster One, true wavetable synthesis opens up fantastic new sound-design possibilities. You can import wave files containing wavetables and use them in your projects. SynthMaster One also ships with a rich wavetable library that you can extend by placing wavetables in the Waveforms folder. Each of the two oscillators features up to 16 unison voices and stereo output. You can even create an epic supersaw patch using the Voices, Voices Mix, Detune Curve, Detune Spread, Pan Spread, Tone Spread, and Phase Spread controls. The two richly analog-sounding zero-delay feedback filters have four filter categories and advanced parameters such as Input Gain, Drive and Acid. But there's more — bi-quad digital filters with a hard limiter/envelope follower across their output. Trust us: you can get into some delightful sonic malfeasance with these!

A feature-packed semi-modular beast

KV331 Audio calls SynthMaster One semi-modular. Here at Sweetwater, we call it powerful — in that you can patch up anything you can dream up. The architecture is brilliant. For each instance of SynthMaster One, you've got two oscillators and two sub-oscillators, two filters, four ADSR envelopes, and a 16-step arpeggiator/sequencer, plus 11 killer effects that can be inserted into six FX insert slots. You can connect the sub oscillators to the main oscillators in five different modes, giving you the option of using it as a regular sub oscillator, or for amplitude, ring, frequency, or phase modulation.

Powerful 16-step multimode arpeggiator/sequencer

SynthMaster One is equipped with a powerful 16-step multimode arpeggiator/sequencer that lets you create virtually any type of rhythmic pattern you can conjure up. You've got all the classic arp modes: Up, Down, UpDown, DownUp, UpDown2, DownUp2, AsPlayed as well as Sequence, Chord and Arpeggiate. Each of the 16 steps is equipped with its own Velocity, Note Number, Note Length, Slide, and Hold parameters.

KV331 Audio SynthMaster One Semi-modular Soft Synth Features:

  • 500 factory presets from a team of world-class sound designers
  • Semi-modular architecture
  • 2 oscillators (each with up to 16 unison voices); 2 sub oscillators
  • 2 zero-delay feedback filters, 4 ADSR envelopes, and 2 LFOs
  • Powerful 16-step multimode arpeggiator/sequencer
  • 11 different effects that can be inserted into 6 FX insert slots
  • True wavetable synthesis opens up new sound-design possibilities
  • Rich FX set with 11 different types: Distortion, LoFi, Ensemble, Phaser, 6 Band EQ, Compressor, Vocoder, Delay, Chorus, Tremolo, and Reverb
  • Support for Scala tuning microtuning
  • Comprehensive preset browser with flexible search criteria
  • MIDI patterns importable as arpeggiator sequence via drag-and-drop

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.