Klavis Mixwitch

Item 12 of 12
€ 159,00 (including VAT / BTW)
Stock 2 pcs.

Klavis Mixwitch

Mixer & Switcher

    Dual 2 to 1 mixers, normalized into 4 to 1
        Click-less mute per mixer
        Click-less polarity inversion per input with LED indication
        Modulation vs. audio mode selection (lin/log) per mixer, with change of potentiometer curve response and LED indication.
        Two LEDs on each output showing the amplitude and polarity of the output signal
        Unconnected inputs present a fixed voltage to ease offset creation
        Full range DC-coupled analog signal path
        Switch among 4 inputs, only 2, or disabled
        Select an input sequentially with a clock/trigger
        Select an input randomly with a clock/trigger
        Select an input in relation to a control voltage
        CV and clock control are audio rate capable
    Settings retained over the power cycle
    High-quality potentiometers with metal shaft
    Skiff-friendly & compact module

Mixwitch applications described in the manual

    1. Control signal mixer
    with pots acting linear
    2. Audio mixer
    with pots acting logarithmically and mix level muted by 6dB
    3. Four step sequencer/randomizer
    generating CVs for a sequential or random melody set by the 4 pots
    4. Simple sub-octave generator
    using only one half of the module
    5. Complex sub-octaves generator
    one and two octaves below freely mixed and tweaked
    6. Simple granular synthesis
    using any VCO with multiple wave outputs
    7. Multiple-segment waveshaper
    fill each quarter-wave with other waves segments
    8. Phase-controlled wave-stitcher
    using PWM for control and a pair of audio sources
    9. Voltage controlled transposer
    to up to 3 or 5 independent tunings
    10. Drum randomizer
    in combination with some rhythm pattern generator
    11. Digital inverter / signal amplifier
    using one half of the module
    12. Voltage window comparator
    does switching/gating when a signal is within a specific range
    13. Drum selection in sequencing applications
    using one CV/gate pair for 4 drum sounds
    14. Random clocking – Chance generator
    with settable occurrence
    15. Two-input logic AND / NAND gate
    for digital duties
    16. Two-input logic XOR gate – Digital ring-modulator
    for exclusive selection or MS20-like ring mod
    17. Saw to PWM with manual or CV control
    for audio shaping or LFO gate length adjustment
    18. Hard clipping
    for audio shaping and distortion


25mm deep

+12v 39mA

-12V 24mA

+5V 0mA


Focused versatility seems an oxymoron when describing the features that led us to design the Mixwitch.
With only a pinch of mixing, inverting and controlled switching, we brew up a plethora of combinations and uses.
This is voltage processing magic!

The Mixwitch design comes from a frustration with attenuvertors (bipolar attenuators-inverters) whose off (neutral) position is difficult to retrieve, especially in live situations.
We went for a digitally-controlled analog path where polarity inversion would be at the touch of a button. So, the usefulness of attenuating/inverting can be realized by turning the pot down, swiftly pressing the inversion button and reopening the level. The zero level is where you expect it, with the pot full down.
Once we had a clean polarity control, we easily added a mute function offering the benefit of pre- adjusted pot settings ready to be activated at will.
The next step was to bring something extra, useful and creative. There are plenty of analog switches controlled by a clock; but arbitrarily selecting an input with a voltage is less known. Having both control capabilities combined with our specific mixer features creates a unique fusion: welcome to the Mixwitch !

User manual V1.1

Quick guide V2.0




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