Deluge

Portable sequencer, synthesizer and sampler

The Deluge is a portable standalone sequencer, synthesizer and sampler from Synthstrom Audible, a New Zealand company. It has a 16 by 8 grid of 128 RGB pads, subtractive, wavetable and FM synth engines, and a sampler that streams from an SD card. The unit offers up to 64 synth voices, MIDI and CV/gate outputs, audio I/O including a built-in microphone, and a rechargeable battery. It is built around a Renesas RZ/A1L processor.

Platform

Renesas RZ/A1L (Arm Cortex-A9)

Stock firmware

1.2.1

Manufacturer

synthstrom.com

Community

Front view of the Synthstrom Deluge groovebox with its pad grid and wooden side cheeks — Photo: Synthstrom Audible, manufacturer product image, via synthstrom.com

Notes

Synthstrom Audible open-sourced the Deluge firmware, and the community firmware is developed in Synthstrom's own GitHub organisation. Release notes recommend backing up the SD card before updating.

Firmware 1

Deluge Community Firmware

Community-developed Deluge firmware, hosted by Synthstrom Audible. Adds a DX7-style FM engine, compressor, audio export, velocity view, chord keyboards, custom scales and many UI and sequencer changes.

by Synthstrom Audible community contributors

ActiveSource: openGPL-3.0-or-later

Distribution: Prebuilt image you flash yourself

fx
sequencer
synth-engine
fm
ui
chords
scales
velocity

Deluge Community Firmware version history
Version	Date	Notes
1.2.1 (Chopin)	2025-05-12	Bugfix release on 1.2.0; fixes audio clicks when recording and when scrolling or zooming in song row view.
1.2.0 (Chopin)	2024-12-26
1.1.1 (Beethoven)	2024-08-27