SynthsInstrument
Ark Duo
A mono/duophonic analog-modelled synth with a ladder filter that bites.
Included in ARKITEKT membership ($97/mo, opens soon) · free during the public beta.

A simplified web version of Ark Duo’s SIMPLE face, running in your browser. Sound only plays after you press Play.
What it does
- Two morphing VCOs plus sub oscillator and noise
- Transistor-ladder filter from 6 to 24 dB — self-oscillating, with multidrive
- MONO, DUO (paraphonic) and UNISON voicing, with glide
- Two looping envelopes, two LFOs and an 8-slot modulation matrix
- Arpeggiator and 16-step sequencer
- SIMPLE face with BITE, GROWL, MOTION and GLIDE macros; EXPERT shows every control
Specs
- Oscillators
- 2 morphing VCOs + sub + noise
- Filter
- Ladder, 6–24 dB, self-oscillating
- Voicing
- Mono · Duo (paraphonic) · Unison
- Modulation
- 2 looping ENV · 2 LFO · 8-slot matrix
- Parameters
- 186
- Formats
- VST3 · Standalone
- Test rig
- 22/22 checks passed
Factory content
Open the vaultArk Duo Factory Presets — 49 presets
Included in the membership — the pack is in your Preset Vault, ready to download.
Every page
Take the full tour.

First five minutes
- Create a MIDI track and load Ark Duo from the ARKITEKT vendor folder.
- Browse the Ark Duo Factory Presets (49 presets) to hear what it can do.
- Explore: two morphing VCOs plus sub oscillator and noise.
- Then: transistor-ladder filter from 6 to 24 dB — self-oscillating, with multidrive.
- Save your own version as a preset so it is one click away next session.
Included in ARKITEKT membership
$97/mo · everything included
Opens soonArk Duo comes with the membership — together with all 48 Ark plugins, the ARKITEKT DAW, every factory preset, the genre sample packs and every future drop.
Paid membership opens soon. Join the free public beta today — your membership attaches to the same account when it opens.