Legendary · study 30 of 43

Modulr Duo

Two voices at once, sliders throughout the panel, and a step sequencer with an accent and a slide.

Modulr Duo is a design study after the Odyssey of 1972: a duophonic grammar of two oscillators, a resonant filter with a sweep, two contour generators, a ring modulator and a stepped sequencer of two rows. Drawn as a plug-in editor and as a 26 HP module.

Design study · not built

Legendary→Pricing→

26 HPthe width of the Eurorack module this study is drawn as

8 macrosthe signature controls the module carries, each with its own control jack

6 jacksa note, a V/Oct and a gate in, audio out

The study

The editor, and the module it becomes.

Each study is drawn twice: as a standalone plug-in editor, and as a Eurorack module with its macro knobs and the control jacks under them. Nothing here is built.

The Modulr Duo plug-in editor, drawn as a design study — The Modulr Duo editor: an orange-and-black panel of sliders, a white stepped sequencer strip, and a 37-key keybed with bend and mod wheels.

The Modulr Duo Eurorack module, 26 HP, in its case — The Modulr Duo module, 26 HP: eight short sliders with coloured caps, each with a control jack, and a stepped sequencer strip.

Mock UI — drawn by the specification’s own kit, not a screenshot of a shipped editor. Values are illustrative, not measured. The study is Odyssey’s grammar, redrawn in Modulr’s own words, and nothing on it is measured against the instrument.

The instrument it studies

Odyssey, 1972.

The instrument’s own grammar, as the catalogue recalls it: the sections, the controls and the look the study borrows.

The two-voice grammar borrowed: two oscillators, a resonant filter with a sweep, two contour generators, a modulator with sample and hold, a ring modulator, glide, a duophonic switch and a stepped repeating sequencer of two rows.

A 26 HP two-tone panel: burnt orange on the left and matte black on the right, cream lettering, eight short vertical sliders with orange, red and blue caps each with a control jack under it, a stepped bend graphic and a stepped sequencer strip.

Two oscillators: octave, waveform and tune, with a noise source
A duophonic mode and a monophonic mode
A resonant filter: cutoff, resonance and a sweep amount
Two contour generators, one for the filter and one for the amplifier
A ring modulator, a sample-and-hold, and portamento
A keyboard control with a stepped pitch bend and a wide modulation wheel
A stepped repeating sequencer of two rows, with a pattern and a tempo slider
A 37-key keyboard, and a hand-held version with the panel on the left and the keys on the right

The spec sheet

The module, knob by knob.

The macros are the signature controls a player reaches for, not a generic set; each one has a control jack under it on the module.

Macro	Key	Range	Default
Cutoff	vcf.cut	20 Hz – 20 kHz	20 kHz
Reso	vcf.res	0–100%	0%
Sweep	vcf.env	0–100%	0%
Mix	mix.level	0–100%	50%
Decay	env.dec	0 ms – 20 s	300 ms
Sustain	env.sus	0–100%	70%
Rate	lfo.rate	0.2–40 Hz	5.0 Hz
Glide	porta.time	0 ms – 2 s	0 ms

Side	Jacks
In	Note (MIDI), V/Oct (CV), Gate (CV), Clock (CV)
Out	Out (Audio), Bend (CV)

This study is a study, and it is not built.ProposedLegendary, the catalogue this study belongs to, holds 43 design studies after the instruments of all time, each after an instrument’s grammar and never a copy of it. No maker’s name or logo is drawn on a panel, nothing is measured against the instrument, and the study itself is not for sale: Legendary is the plan that carries the catalogue.

Legendary is the catalogue of the Modulr Synths project: 43 design studies drawn with the specification’s own kit, 33 after the synthesizers of all time and 10 after the drum machines. The makers and years named here are the instrument’s; the names, the layouts and every value are Modulr’s own.