Instruo - Tòna


Tóna is a powerful oscillator based on a saw-tooth core. The module combines concepts of East-Coast and West Coast synthesis philosophies. In addition to individual outputs for square, saw, triangle and sine waveforms, there is a wave folder channel. Its results are comparatively soft. Hard sync and linear FM, on the other hand, sound rather dirty. All in all, Tóna can be classified as a very energetic VCO.



Tóna is a fully analog oscillator, which uses a saw-tooth core to generate sound. For playing the module, a 1V /octave input was implemented. The pitch can be altered via Coarse and Fine tune potentiometers. Additionally, there is a linear FM input with attenuator. Furthermore, Tóna features a Hard-Sync connector. Four waveforms are emitted via individual outputs:

  • Saw
  • Triangle
  • Pulse
  • Sine

In addition, there is a fifth output, which is fed by a wave folder. It processes the module’s sine wave. Thanks to a 30 mm fader, you can set the degree of folding very precisely. Modulating this parameter is possible as well.

A negative DC offset at the 1V / octave or linear FM input allows you to shift Tóna’s frequency into the LFO range. The waveforms remain stable while doing so.


1V / octave input
Linear FM input
Hard Sync input
CV input for wave folder
Five audio outputs (Sine, triangle, saw, square and wave folder)


3U Eurorack module, 12 HP wide, 27 mm in depth
Power consumption: 60 mA at +12 V and 60 mA at -12 V

0.2 kg
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€ 19% VAT excl. €175.63 € 19% VAT incl. €209.00
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