CubuSynth Arkarion: an analog synth voice in Eurorack format
CubuSynth has officially launched the Arkarion, a Eurorack module that contains a complete synthesizer voice on its own. When this announcement came out at the end of September 2025, it caught my attention, because it combines an analog sound section with fully digital control.
On the sound side there are two analog VCOs with selectable waveforms, two VCAs and a very complete multimode filter (low-pass, band-pass, high-pass and all-pass). The envelope generator, inspired by west-coast synthesis, offers two segments, attack and release, with a loop mode. Two voltage-controlled LFOs and a voltage-controllable tape delay simulation complete the modulation section.
For playing, there is a MIDI input and the corresponding CV and gate outputs, so it can be used as a standalone voice from a keyboard or a sequencer.
The distinctive feature is the fully digital interface: 64 memory slots arranged in 8 banks of 8, and above all a 'DNA' potentiometer, decorated with a mandala with LED display, that generates random voltages among more than 65,000 combinations. A playful way to find unexpected sounds.
The module measures 42 HP, draws 200 mA on the +12 V rail and 110 mA on the −12 V rail, and is announced at 690 euros. I haven't heard it, but the idea of a compact voice with memories and controlled randomness seems very tempting to me for a small system.
Source: gearnews.fr
On the sound side there are two analog VCOs with selectable waveforms, two VCAs and a very complete multimode filter (low-pass, band-pass, high-pass and all-pass). The envelope generator, inspired by west-coast synthesis, offers two segments, attack and release, with a loop mode. Two voltage-controlled LFOs and a voltage-controllable tape delay simulation complete the modulation section.
For playing, there is a MIDI input and the corresponding CV and gate outputs, so it can be used as a standalone voice from a keyboard or a sequencer.
The distinctive feature is the fully digital interface: 64 memory slots arranged in 8 banks of 8, and above all a 'DNA' potentiometer, decorated with a mandala with LED display, that generates random voltages among more than 65,000 combinations. A playful way to find unexpected sounds.
The module measures 42 HP, draws 200 mA on the +12 V rail and 110 mA on the −12 V rail, and is announced at 690 euros. I haven't heard it, but the idea of a compact voice with memories and controlled randomness seems very tempting to me for a small system.
Source: gearnews.fr
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