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By  Cherry Audio LLC

Cherry Audio’s PS-3300 faithfully emulates KORG’s iconic semi-modular analog polyphonic synthesizer from 1977. Known for its massive sonic character, resonator sweeps, and extensive patching capabilities, the PS-3300 is revered as a holy grail of polyphonic analog synths. Featuring three independent “signal generator” panels with 12 tunable oscillator banks, discrete VCFs, envelope generators, and VCAs, the PS-3300 offers unparalleled versatility. It’s a must-have for synth enthusiasts and musicians seeking classic analog warmth and flexibility.

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$69.00 $64.17

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PS-3300: Faithful Virtual Analog Synthesizer

PS-3300 is an exacting virtual analog emulation of the colossal semi-modular analog polyphonic synthesizer released by KORG in 1977. Cherry Audio has meticulously recreated and updated this legendary synth, capturing its massive stacked sonic character, signature multiple-resonator sweeps, and extensive patching capabilities.

Before KORG’s renowned MS monosynths, the Polyphonic Series introduced the PS-3300, a massive and rare synthesizer produced between 1977 and 1981. With its semi-modular design and rich, evolving timbres, the PS-3300 is often hailed as the holy grail of polyphonic analog synths.

The PS-3300’s unique architecture featured three independent “signal generator” panels, each functioning as a complete polyphonic synthesizer. Each panel included 12 independently tunable divide-down oscillator banks, along with discrete VCFs, envelope generators, and VCAs for every note. Dual LFOs and triple voltage-controllable resonators shaped its signature tone. A dedicated master panel offered extensive modulation possibilities through 67 front-panel input/output jacks.

Cherry Audio’s PS-3300 faithfully captures the power and revolutionary design of the original, making it a must-have for synth enthusiasts and musicians seeking classic analog warmth and versatility.


  • Exactingly faithful virtual analog emulation of the semi-modular analog polyphonic synthesizer released by Korg in 1977
  • Three independent “signal generator” panels, each with an oscillator, lowpass filter, three-peak resonators, envelope with velocity, amp, two mod generator LFOs, and per-note tuning:
  • 3X VCOs with six waveforms: triangle, saw, rectangle (square), two preset pulse waves (with different widths), and PWM (variable-width pulse)
  • 3X resonant VCF 12 dB/oct lowpass filters with the option to select between the standard “clean” PS filter or the “crunchier” MS-style filter
  • 3X modulatable “triple resonators”: 12 dB/oct bandpass filters to produce vowel and phasing tones
  • 3X discreet ADSR-type envelope modulators with velocity control, and amplitude modulation
  • 3X two syncable “mod generators” (LFOs) with output jacks: one with triangle, saw, ramp, rectangle, pink noise, and white noise, and the other with triangle waveform
  • 3X temperament section with individual tuning knobs for the 12 chromatic notes, and temperament presets for Equal Tempered, Mean Tone System, Hepatonal System, and Just Intonation
  • Copy/paste settings from one signal generator panel to another
  • Polyphonic mode with up to 24 voices of polyphony and three monophonic modes: last, low, and high note priority
  • Semi-modular synthesizer with virtual jack and cable system, featuring unlimited mults per jack and customizable (color, transparency, animation) cables
  • Master signal mixer panel with sample & hold, general envelope generator, and two control voltage (CV) processors
  • Individual channel panning
  • User-selectable bend range and master tune
  • Studio-quality integrated effects: chorus, echo with sync, and three types of reverb (spring, plate, and Galactic)
  • Over 360 professionally designed presets in a dozen categories. These include a bonus Legacy collection of basic presets based on the patch sheets in the original PS-3300 Owner’s Manual, a 3100-based Glissando patch, and a 432 Hz Equal Temperament patch, all to get your started in your own sound design adventures.
  • Standalone virtual instrument and plug-in versions
  • Complete MIDI control and DAW automation for all controls, with easy-to-use MIDI Learn and mapping
  • Cherry Audio’s popular Focus zoom-in feature, as well as standard UI zoom and resize via drag
  • Complete documentation available directly online from the instrument or in downloadable PDF format
  • User-adjustable oversampling control



  • Windows 7 or above (Including Windows 11)
  • 64-Bit System
  • Quad Core Computer with 8GB of RAM recommended.


  • MacOS 10.13 or above
  • MacOS 13 Ventura supported
  • 64-bit required
  • Native Apple M1 or greater processor support, including Ultra.
  • 3.4 GHz Quad-Core or M1 CPU with 8GB of RAM recommended.

Digital license code delivery: You will get your unique serial number via email in seconds after the purchase is complete.

No Returns on Software. Once your software is activated it is not eligible for returns.


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