Instruō Seashell introduces a new way of working with analogue synth voices.

A compact semi-modular system, pairing hands-on hardware with expansive control and configuration through dedicated software. Seashell offers seamless integration of Instruō hardware into existing workflows for professional sound design, music production, and live performance.

Seashell | sē′shĕl″|compound noun: Sea (environment) vast body of waves;
Shell (architecture) ornate outer structure, (computing) user interface for entering
control commands.

Seashell Controller (MacOS)

Seashell Controller (Windows)

Seashell Controller (Linux)

QUICKSTART GUIDE

MANUAL

Size

Width: 124mm
Height: 113mm
Depth: 51mm

Power

5V / 1A Centre Negative
(Power Supply Included)

Features

• Two sawtooth-core analogue voltage-controlled oscillators
• Analogue voltage-controlled wavefolder
• Resonant voltage-controlled low-pass filter
• Internal waveform routing to filter and wavefolder inputs
• Parallel modular level outputs
• Internal analogue cross FM modulation bus
• CV inputs for self patching and external modulation
• Stereo Line Level/Headphone output driver
• TRS MIDI input
• User-definable external CV input and output
• USB-C connectivity for audio/MIDI integration to DAW
• VST3/Software control interface expansion
• High resolution (14Bit) digital control over analogue circuitry
• Customisable scale transposition engine
• Total recall of digital controlled analogue parameters
• Internal LFO modulation sources
• Multi-function envelope generator
• Stereo diffusion effect
• 4×4 modulation matrix mixer with hardware macro control
• MIDI learn functionality