Voilà j'ai enfin eu une réponse sur le forum de radikal:
Hi
I don´t have the spectralis here but I belive these are the pitch lfo´s .. V standing for Voltage as in VCO
we have 10 lfo´s in the A synth, at first it might seam monstrous but its pretty simple:
2x LFOs built in each section of the filters
4x Master LFO´s = MLFO
4x VCO LFO´s = VLFO
and they are not hardwired and can all be assigned freely ...