Two VCOs per voice
Each voice carries a saw and a pulse core with hard sync, cross-mod, and independent level. Detune is set by hand at calibration and drifts beautifully with room temperature.
All instruments
Instrument 01 / polysynth
KORE-4
Four voices of true analog polyphony. Two VCOs per voice, a 24 dB ladder filter, and patch memory that stores only the settings, never the signal path.
In stock, ships weekly
Batch 09 / walnut
5-yr warranty
02 / Try the sequencer
This runs in your browser, right now.
A one-octave taste of the KORE-4 sequencer, rebuilt with your browser's audio engine. Toggle steps, drag the tempo, press play.
KORE-4 demo sequencer
96 BPM
Click a cell to cycle its note, blank clears it. This is a browser recreation, the hardware sounds warmer and worse in all the right ways.
The ladder filter
A 24 dB ladder built from matched transistor pairs we bin ourselves. Self-oscillates at every setting and never sputters. It is the reason the instrument exists.
Memory without menus
64 patch slots store knob positions and switch states. Recall is one button, and the analog path stays untouched between notes and years.
Built to open
Torx screws, labeled ribbon cables, and a service manual with every unit. The voice cards lift out without desoldering anything.
03 / Signal path
04 / Full specification
| Voices | 4, true analog |
|---|---|
| Oscillators | 2 per voice (saw + pulse) |
| Filter | 24 dB ladder, self-oscillating |
| Envelopes | 2 per voice (ADSR + mod) |
| LFO | 1 global, 5 waveshapes |
| Sequencer | 64 steps, per-step accent |
| Keys | 49, semi-weighted, velocity |
| Connectivity | MIDI DIN in/out/thru, USB-C, CV x4 |
| Sides | Solid walnut, hand-oiled |
| Dimensions | 780 x 340 x 110 mm, 9.4 kg |
The patch I played on the demo is still on my unit, and I refuse to overwrite it. It sounds like the room I made it in.