play it asdfghjk · wetyu · zx octave · or click the keys

a synthesizer, a sequencer and a sampler — machined from one block of silence.

KAIKU

k–1polyphonic synthesizersequencersampler
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01 — form

thirty-two centimetres.
nothing extra.

milled from a single billet of 6061 aluminium for nine hours, bead-blasted, then anodized. every edge carries a radius you can feel with your eyes closed.

19mm thin
890grams
16hours of battery

02 — controls

four encoders.
endless turns.

straight-knurled for grip, concentric-brushed on top, ringed with seventeen leds that remember every value. the whole instrument in four gestures.

  1. tonefilter cutoff
  2. shaperesonance · timbre
  3. spacedelay · reverb
  4. drivesaturation

drag any knob on the model

03 — sound

eight engines.
one screen.

every engine is its own recipe, from fm glass to a plucked physical string. point at a name to hear it; click for a chord.

    play every engine in the studio →

    04 — sequencer

    sixteen steps.
    four tracks. no menus.

    every step is a key with its own light. arm rec, press play, and whatever you touch is written into the loop.

    click a cell to toggle · click a track name to show it on the steps open this loop in the studio →

    05 — inside

    nothing hidden.
    nothing wasted.

    six layers and one idea: everything you touch is connected to something worth looking at. a black eight-layer board, a cell that lasts a working week, a speaker that fills a room.

    take it apart in 3d →

    06 — connect

    plug into
    everything.

    the right edge is a studio. usb-c for audio, midi and charging, stereo line in and out, and midi that talks to fifty years of instruments.

    see the ports in 3d →

    07 — finish

    eight finishes.
    one light.

    anodized in helsinki. the seam at its waist takes the colour of the finish and follows everything you play.

    inspect every angle →

    08 — specifications

    kaiku k–1

    €1,290 shipping december 2026 · free returns

    size
    320 × 124 × 19 mm
    weight
    890 g
    chassis
    6061 aluminium, cnc-milled, anodized
    display
    3.9″ oled, 1280 × 360, cover glass
    keys
    25 hinged keys · 16 lit step keys
    encoders
    4 endless, knurled, 17-led rings
    engines
    8 synth engines · 24 voices · drum sampler
    sequencer
    16 steps × 4 tracks · live rec · swing
    audio
    24-bit / 48 khz · built-in speaker
    i/o
    usb-c · line in · line out · midi trs
    battery
    5000 mah · 16 hours · usb-c charging
    designed
    helsinki