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The Keybass, bass and synth altogether

French Canadian Jonathan Dauphinais introduced the third prototype of his Keybass, a bass that is controlled by a built-in bass synth.

The Keybass is a real bass guitar with a 34” scale, swamp ash body, maple neck, flamed maple fingerboard with 20 frets, Hipshot Ultralite Custom Lollipop tuners, one Nordstrand Bigsplit pickup, a Hipshot Ultralite bridge and passive tone and volume knobs.

Jonathan inserted into the lower part of the body a custom bass synth with three sections: a polypohonic digital section, a monophonic analog one and a 16-step sequencer, so that the instrument can cover a wide variety of sounds.

The bass signal is processed by the synth via cross-synthesis and it is possible to assign effects to the bass sounds from the keyboard.


The Keybass is currently a prototype but Jonathan Dauphinais is working on a production version.

You can follow the evolution of the Keybass at and on Jonathan’s Facebook page.

Here is a presentation of the Keybass by Jonathan himself (English subtitles):