Klang

KLANG is a four voice polyphonic controller.
It stores, traverses and manipulates chord progressions.

Allthough it was designed as a tool for making polyphony more accessible in Eurorack – It can be used for many other purposes. Think of it as a four channel sequencer and use it to inject precission voltages wherever you need them.

KLANG is inherently musical. It speaks tonal cents and defaults to the twelve note chromatic scale.
If you wish you can go between semitones and play with microtonality or dial in those specific sweetspots on your favorite filter.

All of KLANGs functionality is available without any form of menu diving. Everything is front and center and every function has dedicated inputs or controls.

Klang

Specifications

Width 14HP (70.8 mm)
Depth 20 mm (1)
Power consumption +12 V: ~23 mA (2)
-12 V: <2 mA (2)

(1) Measured from the back of the panel to the back of the power connector.
(2) At normal operation.

Each of the four voices of Klang is color coded. The current state of a voice is given by its dial position on the display. You set the dial position by turning the same color knob, and if you press the knob whilst turing you can fine tune the position and go between semitones.

KLANG stores changes on every user interaction – Always ensuring you are right where you left off when you power on your system. This is done by utilizing a special memory technology enabling billions of write cycles and a lifespan of hundreds of years.

The number on each dial indicates the octave of the voice. Keep turning the voice knob and you will see the octave indicator go up and down when you pass C on the display.

The big knob in the center is for browsing. On the display you can see the current chord index and the total chords in the sequence. Turn the browse knob to set the active chord.

A short click on the knob toggles pause. When Klang is paused it ignores step and reset triggers, letting you edit and browse in peace. This functionality is just a convenience – pulling out the trigger and reset cables would do the same.

If you press and hold the browse knob Klang enters tuning mode. This temporarily sets all voices to middle C so you can tune your oscillators.

The + button adds a duplicate of the active chord and sets the new chord as the active chord.

The – button removes the active chord.

⇥ Takes a trigger or gate signal and advances the chord progression according to the CV value of the ↤↦ input.

↤↦ Takes a bipolar CV signal and decides the direction and amount of steps a step trigger will produce. 0 V will result in no progression. The ↤↦ input is normalized to one step in the forwards direction.

⇤ Takes a trigger or gate and immediatly resets the sequence to the beginning.

⟳ Takes a bipolar CV, and transposes the current chord according to the voltage given.

At the bottom we find the outputs for the four voices. The output CV signal ranges from -5 to +5 V.

Availability

The first version of KLANG was introduced on the market in 2019. It was on sale until the pandemic created unrecoverable supply chain issues – Resulting in no units being produced between 2021 and 2024.

KLANG had to be redesigned from the ground up with all new components and with careful attention to not get into this position again. It took a while to get the funding needed for a redesign, and it also took a very long time to find the right manufacturing partners.

The upside to all this is that the new version of KLANG is an improvement on all fronts. Front and center is a larger display with twice the resolution, all new injection molded parts are much closer to the original vision, and the addition of a reset input makes KLANG a fully fledged four channel sequencer.

The new and improved KLANG will be available in a specialist store near you shortly.