Intellijel Atlantis - Manual (Page 34)

SUB OSCillator switch in the MIXER section sets the sub OCTave value. SUB can be 1 or 2 octaves down relatively to the Primary oscillator
frequency, with an alternative pulse waveform for the -2OCT position.
SUB OSCillator channel
MIXer section - 03
-1 OCTave
+5V
-5V
t
+5V
-5V
t
+5V
-5V
t
-2 OCTaves
-2 OCTaves
square base frequency
+5V
-5V
t