AURA-25

Aura Instruments · product concept

AURA-25 MK-IV25 keys · 18mm · 1,120g

A MIDI controller cut from one 18mm slab of oxblood aluminium. Screen, ribbons, faders and pads, nothing else.

The finished chassis with every part locked in
01 / 05Chassis · A♭maj7

Chassis first

One block of 6061 aluminium, anodised oxblood and milled to 18mm, with a 13mm well waiting for the keys.

Grazing view along the keys: white waterfall keys and black sharps with cyan pips
02 / 05Keys · Fm9

Twenty-five keys

Fifteen waterfall whites and ten tapered sharps settle into the well with 0.7mm of clearance.

The blue OLED screen beside the two glass ribbons with cyan and amber LED ladders
03 / 05Screen and ribbons · Dm7♭5

Screen and ribbons

An 80mm OLED draws the waveform. Two glass ribbons bend pitch and add modulation.

Eight touch faders beside eight pale square pads
04 / 05Faders and pads · G7sus4

Faders and pads

Eight touch faders, eight CV jacks and eight square pads, lined up with the fader throw.

The AURA-25 at rest from the front
05 / 05Ready · E♭maj9

Ready to play

Everything you watched arrive is one instrument weighing 1,120 grams. Keep scrolling and try it.

Controls

Four zones. No menus to dig through.

Every control has one job and its own place on the deck, so your left hand never crosses your right.

Close view of the keybed: ivory waterfall keys and black sharps with cyan pips
01 · Keybed

Keys that sit inside the slab

Fifteen waterfall whites and ten sharps with 18° ramp noses, damped on acoustic felt with brass bushing stops.

  • 2.8mm travel
  • Optical velocity and polyphonic aftertouch
  • 0.7mm clearance notch around every sharp
The blue OLED screen beside the two glass ribbons with cyan and amber LED ladders
02 · Screen and ribbons

See the sound you are making

An 80mm curved vector OLED shows a live waveform. The two ribbons sit under smoked glass with LED ladders you can read at a glance.

  • Pitch ribbon with spring return, 15 cyan segments
  • Mod ribbon that holds, 15 amber segments
Eight touch faders and eight dark glass pads with cyan underglow
03 · Faders and pads

Eight of everything

Optical touch faders with 12-step meters, a row of 3.5mm CV and gate jacks, and square pads that line up with the fader throw.

  • 8 touch faders
  • 8 CV/gate jacks
  • 8 silicone pads, 32.2mm square
Four pads, the transport row with its LEDs and the front keys, seen from a low angle
04 · Transport

One bar for the rest

Four tactile macro pills handle transport so nothing on the deck needs a menu.

  • Flush silicone, no moving bezel
  • Class-compliant USB-C, no driver

18mm

Thin enough to pack flat.

Overall height from the base plate to the top of the bezel. The keys sit inside a 13mm well, so nothing stands proud.

25Keys, C3 to C5
2.8mmKey travel
1,120gOne aluminium unibody
13mmKey well depth
Play

Play the AURA-25.

Sound starts on your first press. Plug in a MIDI keyboard and it plays too.

Use A to K for the upper octave and W E T Y U for the sharps.

Spec sheet

Body
Material
6061 aluminium, oxblood anodised
Height
18mm
Bezel
7.5mm, all four sides
Key well
13mm deep, felt-lined
Weight
1,120g
Keys
Count
25: 15 white, 10 black
Travel
2.8mm
Sensing
Optical velocity, polyphonic aftertouch
Sharps
18° ramp nose, 0.7mm clearance
Deck
Display
80mm curved vector OLED
Ribbons
2 optical: pitch (spring), mod (hold)
Faders
8 optical touch, 12-step meters
Pads
8 silicone, 32.2mm square
Jacks
8 × 3.5mm CV/gate
Transport
4 macro pills

AURA-25 is a product concept. Specifications describe the 3D model, not a shipping product.