Intellijel Atlantis - Manual (Page 49)

All type of filter (Low-Pass, Band-Pass and High-Pass will self-oscillate for a RESonance slider set at last to mid position.
Self-oscillation
VCF section - 11
set VCF slope
self-oscillate VCF out
to VCA section
self-oscillate
VCF out
set VCF type
adjust RESonance
self-oscillate past 5
modulate cutoff FREQuency