Back in 2011, this pocket-sized powerhouse kicked off Korg's analog revival with the monotron series, evolving it into a full-blown groovebox that squeezes a snarling synth lead, thumping analog drums, and hands-on sequencing into something you can toss in a backpack.
At its heart sits a single VCO pumping out sawtooth, triangle, or square waves across six octaves, blendable with white noise, feeding into the classic MS-10/MS-20 lowpass filter with cutoff and resonance knobs for everything from smooth sweeps to howling resonance. A versatile LFO—three shapes, fast/slow/1-shot modes, targeting pitch, filter, or both—adds wild FM effects or subtle movement, while three envelope types (decay, gate, attack) shape punchy plucks or sustained howls via the VCA. The multi-mode ribbon keyboard shines in chromatic, narrow glissando, or wide continuous play, backed by self-tuning circuitry for rock-solid pitch no matter the temperature. Hands-on Electribe-style 16-step sequencer includes Active Step for muting/reinserting beats on the fly and Flux mode for organic, grid-free melodies; three discrete analog drum channels handle bass drum, snare, and hi-hat with dedicated tweak knobs. Compact at 207 x 145 x 70 mm and 735g, it runs on six AAs with built-in speaker, offers 3.5mm audio in/out/headphones plus 1/4" main out, USB, and clock sync for chaining multiples.
Over the years, players have loved its raw, buzzy analog bite and sequencer fun for live jamming or sketchpad ideas, though some note the fixed envelope options feel basic next to full ADSR designs—still, it nails that instant inspiration vibe.