Kassiopeia! is a dual line phase distortion synthesizer inspired by the classic Casio CZ series, offering a distinctive sound palette that blends vintage character with modern control. Its design emphasizes expressive synthesis through advanced envelope shaping and modulation options, making it suitable for a wide range of electronic music styles.

This synthesizer provides user-selectable polyphony ranging from one to eight notes, allowing for flexible performance and complex layering. It features six graphic 16-stage envelope generators with capabilities such as stage looping, independent contouring, and key follow, which enable intricate dynamic shaping of sounds. Two pitch LFOs with delay and contoured fade-in add depth and movement, enhancing the expressiveness of the patches.

Additional features include a multi-timbre ring modulator with customizable routing, a variable noise generator for texture, and user-adjustable key scaling to tailor the response across the keyboard. The built-in stereo reverb and two independent cross-feedback delays provide spatial effects that enrich the sonic environment. Together, these tools offer a rich, evolving sound experience suitable for both studio production and live performance.