KL-75 / Monolith — Mechanical keyboard
Each KL-75 case starts as a 4.6 kg block of aluminum and leaves the mill at 1.52 kg, cut to within ±0.02 mm on every face that meets another. A brass weight keeps the balance under the home row, and a spring-mounted plate sets the sound.
- Case mass
- 1.52 kg
- Face tolerance
- ±0.02 mm
- Batch 04
- 120 units
- From
- $640
Fig. 01 — Assembled, 7.2° typing angle
Drag to rotate
6063 Aluminum // 7.2° Incline // Spring-mounted plate
Six layers.
One voicing.
- 01
Gasket isolation
Shore 20A Poron / 0.9 mm compression
- 02
Brass ballast
620 g C360 / 0.8 µm PVD coat
- 03
Hot-swap matrix
QMK / VIA · 1000 Hz polling · USB-C
Fig. 02 — Exploded, Y-axis
Hear the
switch first.
Each voicing is synthesized live in your browser from its stem material, spring weight, and housing plastic. No recordings. Pick a switch, then press the keys or type on your own keyboard.
Audio starts on your first press
Smooth POM stem in a polycarbonate top housing. Deep, rounded bottom-out with a short, clean return.
20 Hz — 10 kHz
Test keys
- Actuation
- 45 g actuation, 22 mm dual-stage
- Total travel
- 4.0 mm
- Stem
- POM, factory lubed (205g0)
- Housing
- PC top / nylon bottom
- Dominant band
- 350–600 Hz
- Last strike peak
- Press a key
Spec
sheet.
Measured on the Batch 04 first article. Every case ships with its own inspection card listing the measured flatness of the plate shelf.
- Drawing
- KL75-SPEC
- Revision
- C
- Units
- mm / g
- Scale
- NTS
Case
- Material
- 6063-T6 aluminum, machined from solid billet
- Mating-face tolerance
- ±0.02 mm
- Finish
- Type II anodize, 20–25 µm
- Typing angle
- 7.2°
- Front height
- 18.5 mm
Dimensions & mass
- Footprint
- 334.0 × 148.8 mm
- Case mass
- 1.52 kg
- Built mass
- 2.48 kg with switches and keycaps
- Ballast
- 620 g C360 brass, mirror PVD
Mounting & acoustics
- Mount style
- Gasket, 12 × Poron (Shore 20A)
- Plate
- Leaf-spring FR4, 1.2 mm, flex-cut
- Dampening
- Case foam, PE sheet, IXPE switch pad
- Tuning options
- Plate foam in / out, O-ring gasket kit
Electronics
- PCB
- 1.6 mm FR4, hot-swap, south-facing sockets
- Firmware
- QMK / VIA
- Connection
- USB-C, 1000 Hz polling
- Layouts
- 75% ANSI, 75% ISO
Hold a
Batch 04 slot.
Batch 04 is limited to 120 cases so each one gets a full inspection pass. Tell us your build and we hold a slot for 72 hours while we send a deposit invoice.
- Case
- Raw Billet
- Ballast
- Mirror PVD Brass
- Switches
- Linear Mineral (45g)
- Layout
- 75% ANSI
- Deposit
- $150, refundable until machining