Olivella Modular – GRAVEDAD

GRAVEDAD is an analogue gravitational VCO from Argentinian eurorack company Olivella Modular. precise tracking up to 10 octaves. The main oscillator controls coarse and fine tune 20Hz to 20KHz range. Built in 5 octave slider with CV control. The heart of the module is a suboctave/subharmonic generator. You can use the suboscillator to track the main VCO and you can control this via CV. There’s a through-zero FM input. You can use two of these modules to modulate each other in an infinite wavefolder way.

Under the hood is an SSI2130 chip. The Mass knob cycles through the waveforms from Square to Sawtooth to spikes! The Force knob is a DUSG style ramp that is triggered by the core 2130 chip. The Force acts as a sort of panner and waveshaper for the MASS. This turns the module into a pseudo stereo oscillator.


  • 12 HP
  • Depth: 30 mm
  • 2 mm anodized aluminium panel
  • Input impedance: 100 kΩ
  • Output impedance: 510 Ω
  • +12V: 110mA
  • -12V: 110mA
  • Reverse-polarity power protection


I think the module should have included two VCO’s features – and that way you can get the real character of this setup (using two modules). There may also have been more from the 2130 that could be used?

Price: $360

Link: https://www.olivellamodular.com/gravedad.html and Modular Grid: https://www.modulargrid.net/e/olivella-modular-gravedad