Four Seas is a four-dimensional wavetable oscillator that transforms sound exploration into a tactile, intuitive experience. Navigate through sonic space using X, Y, and Z controls to explore wavetables as a three-dimensional cube, while the fourth dimension emerges through four related outputs with intelligent spread control.
From gentle detuning to complex microtonal relationships, the spread control offers multiple modes including harmonic ratios, prime numbers, and golden ratio proportions; everything from lush chords to experimental frequency relationships is at your fingertips. The four outputs cascade across wavetable space through intelligent spread algorithms, creating rich, evolving textures like light dispersing through a sonic prism.
The powerful modulation section features thru-zero phase modulation, phase distortion waveshaping, and bitwise XOR for complex sound design. Dual sync inputs with selectable modes, CV control over wavetable banks, and SD card loading for custom wavetables complete the package. Each oscillator pair can switch to LFO rates for modulation duties, and I2C compatibility enables integration with Teletype, Crow, ER-301, and other modules. No menus, no presets — just immediate, musical control over a vast sonic landscape.
Features:
- Controls for coarse and fine tuning, and a tuning lock to prevent unwanted adventures in pitch.
- 12 banks, or wave cubes, that you can choose from. You can make your own and load them via the SD card slot on the front.
- Stable tracking of V/oct CV for 10 octaves, and a linear FM input with an attenuverter.
- The pitch of Four Seas can be spread into four individual pitches, sent to the four outputs. Spread mode selects the ratio of the four pitches.
- X, Y, and Z position controls a point inside the wave cube, and thus the waveform that’s sent to the outputs.
- Spread the initial point into four individual points inside the wave cube, resulting in different timbres at each output.
- Smooth or stepped movement when changing the point and spread inside the wave cube.
- Two audio inputs for modulating oscillator phase. You can choose from three different types of phase modulation.
- Four independent but related audio outputs, allowing for flexible and complex patching.
- Two inputs for oscillator sync, one of both pairs of outputs, and you can choose from three oscillator sync types.
- Three oscillator modulation types and control the amount of modulation applied to each pair of outputs.
- Each output pair can also be run at LFO rate, which gives you modulation signals that are musically related to the audio outputs.
