Source Audio Soundblox Pro Poly-Mod Filter Control Supplement - Manual (Page 6)

13. LFO2 TO EFFECT SELECTOR AND EXPRESSION PEDAL TO LFO2 SPEED
This setting allows for the combination of LFO to Effect Selector with all of the Poly-Mod Pro’s
primary modulation sources (Envelope, LFO, or Hot Hand). The starting and ending points of the
LFO2 Effect Selector cycle are chosen by the Effect Selector knob and ‘XD’ parameter
respectively. The primary modulation sources use the top panel depth and speed controls while
the LFO2 uses an expression pedal for speed.