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 Kassiopeia! by Sonic Assault is a Virtual Instrument Audio Plugin. It functions as a VST Plugin.
Product Kassiopeia!
Developer Sonic Assault
Price (MSRP) Free
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
 2.0  Downloads Released
Miscellaneous Information
Copy ProtectionNone

Kassiopeia! is a Casio CZ-inspired Dual Line Phase Distortion Synthesizer.


  • User selectable 1-8 Note Polyphony.
  • 6 Graphic 16-stage Envelope Generators with Stage Looping, Independent Stage Contouring and Key Follow.
  • 2 Pitch LFOs with Delay and Contoured Fade-In.
  • Multi-timbre and Routing Ring Modulator.
  • Variable Noise Generator.
  • User Adjustable Key Scaling.
  • Stereo Reverb.
  • 2 Independent Cross Feedback Delays.
Made with SynthEdit
User Rated

Review Kassiopeia! Now!

Discussion: Active


18 April 2015 at 2:47pmdave1z

I'm trying to wrap my head around Kassiopeia settings. How do they map to the original CZ patch settings? I have the original patches from my CZ and would like to plug them into Kassiopeia. I read the manual and saw the table on timings, but am still confused. Is it possible to use VirtualCZ patch files with Kassiopeia with some sort of conversion? If so how do the .fxp files differ in structure? Thanks in advance. This plugin has really re-kindled my interest in VST instruments seeing as my beloved CZ-101 has bit the dust.

5 February 2016 at 9:31pmbriandc

Very very nice synth. LOTS of control that isn't provided on a lot of other synths (such as LFO section options). I used to have a CZ1000 but it didn't have all the control of this softsynth, such as the many envelope shape options: linear, exponential, etc.

16 October 2017 at 3:01amBig Busker

The Sonic Assault website is archived; Kassiopeia! 2.0 is available from this link.

18 October 2017 at 8:01pmBig Busker

There is one more version, the last update 2.1. See the KVR forum thread "Kassiopeia 2.1 Update".

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Average user rating of 8.00 from 1 review

Sonic Assault
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