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Sweet Sixteen MK2

Sweet Sixteen MK2


Sweet Sixteen MK2 is a eurorack version of the 16n Faderbank, implemented with 16 CV inputs and some other smart add ons.


Gess is an expander, bringing 8 gate inputs for the Sweet Sixteen mkII.


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    Sweet Sixteen


    This module is a eurorack version of the 16n Faderbank, implemented with 16 CV inputs and some other smart add ons. Almost everything is in the front panel.

    This new version is oriented for firmware tweaks and future expansions, still being fully compatible with the 16n and the previous Sweet Sixteen.

    Changes from previous versions:

    • Function push button
    • Function led
    • Expansion header in the back
    • i2C pull-up switchable with jumpers (aux pcb not required)
    • Mate black & gold panel with brass nuts

    There are 16 channels, which can be used as:

    • Midi controller
    • Manual CV generator (0 to 8v range)
    • Attenuator
    • CV to Midi CC
    • i2C controller
    • CV to i2C data


    • Midi trs out
    • Jumpers on the back to swap between 'Arturia/Novation' and 'Korg/Makenoise' Midi trs standards
    • USB Midi out (usb midi class compliant device)
    • 4 switches to enable bi-polar CV to Midi/i2C conversion (one for every 4 channels)
    • i2C via mini jack on front panel and pin header on the back of the module.
    • 16 inputs
    • 16 outputs
    • 16 faders
    • 16 bi-color leds to show what's going on in every channel

    The Midi CC number and channels can be different for the TRS jack and the USB port. The firmware has been tweaked to allow also Pitch Bend, which is pretty handy because you can get much better resolution through Midi (from min to max values Midi CCs have 128 steps and Pitch Bend has a resolution of 16.384 steps).

    The voltage generated by every fader is up to 8v, which is good enough to control eurorack modules (like wide open/close the cutoff frequency of a filter etc).

    In the midi CC messages, 0 volts will correspond to a value of 0, and 8 volts to a value of 127. But the CV to Midi can handle also negative voltages, for such task there are 4 slide switches (1 for every 4 faders) that swaps the internal voltage reference in a way that, when activated, 0 volts will be the middle position of the midi controller, -4 volts the minimum value and +4 volts the maximum. Those switches only affect the Midi/i2C outs, CV outs won't be affected by them in any way.

    If you plug in a bigger voltage source (like a -5v+5v LFO or a 10v envelope) the fader will work as attenuator, so you'll be able to adapt how that signal affects the Midi CC out, covering the whole Midi CC range, saturating the waveform or just affecting it briefly.

    Panel USB port is type B, which seems to be stronger than mini or micro ones.

    i2C could connect directly to an ER-301, monome Ansible or a monome Teletype.

    The Teensy can be powered via the internal regulator or the +5v eurorack rail (selectable via a switch on the back).

    The kit comes with all SMD populated, so only through hole components requires soldering work.




    This is an expander, brings 8 gate inputs for the Sweet Sixteen mkII.

    The panel is reversible, so jacks & buttons can be in the left or right side.

    the orientation of the 10 pin ribbon cable is marked by the 'do not plug power here!' legend on the PCB, so it could be with the red stripe facing that in both GESS and Sweet Sixteen mkII modules.

    With the current firmware (Sweet_3.hex) GESS is used to generate midi notes with the get input & buttons.

    • every button/gate in will create a midi note in the TRS & USB midi outs

    • the pitch and velocity can be a fixed value or CV controlled (upper 8 faders & CV inputs for note value, lower row of fader & CV for velocity)

    • 8 presets

    • press the function button (next the USB port) to activate the 'load preset', any of the 8 buttons will load it.

    • press the function button while pressing any of the 8 GESS buttons will save a preset, the position of the faders will determine the preset values (upper row for pitch, lower row for velocity) and if any of the faders is at minimum position when saving the preset, that parameter will be read in real time when that preset is loaded. So if you save a preset with the fader 2 & 9 fully down, the midi notes generated by gates in the GESS input 2 will be controlled by the fader & CV 2, and the velocity of the notes generated by the gate input 1 will be CV controlled by fader & CV 9. None of those faders will send the usual midiCC while being used for midi note or velocity.

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    Brand Tesseract Modular