NAMM 2017: Is the MOD Duo open-source multi-effects 'the definitive stompbox'?

NAMM 2017: Berlin's MOD Devices has taken a new approach to multi-effects pedals with the Duo, an open-source stompbox that invites users to make their own combinations of effects, synths, amp sims, tools and more.

These new sounds are created using the company's plugins (which will be continually expanded, says MOD), and the pedal's web-based interface allows entire pedalboards to be shared and downloaded with fellow users.

Other features include:

  • Two independent outputs with balanced 1/4' TRS jacks and volume control
  • Headphone output with independent digital volume control
  • Relay based True Bypass circuit
  • Cirrus Logic low noise audio codec
  • CPU: Dual core ARM A7 1.0 GHz, 1GB RAM and 4GB Flash Storage
  • 2 knobs with LCD screens and 2 foot switches with colour LEDs
  • I/O Connections: MIDI In and MIDI Out (DIN 5 pins), Control-Chain RJ-45, USB Host (2.0 Standard A-type supporting USB Wi-Fi and USB MIDI) and USB Device (2.0 Standard B-type supporting USB Ethernet adapter)

The MOD Duo is available now for $649 from MOD Devices.

Michael Astley-Brown

Mike is Editor-in-Chief of, in addition to being an offset fiend and recovering pedal addict. He has a master's degree in journalism, and has spent the past decade writing and editing for guitar publications including MusicRadar, Total Guitar and Guitarist, as well as a decade-and-a-half performing in bands of variable genre (and quality). In his free time, you'll find him making progressive instrumental rock under the nom de plume Maebe.