Pigtronix Echolution-2 Deluxe - Manual (Page 12)

Delay Line i/o
UPPER BUTTON
SHORT PRESS cycles between:
TRAILS - old echos “spill over” after bypass for smooth
transitions.
LISTEN - echo material is recorded (although not heard)
while in bypass.
NORMAL- normal bypass (no LEDs lit up).
LONG PRESS turns on DRY KILL - this cuts out the analog
clean signal from the mix. DRY KILL is useful for special
effects or when using a parallel effects loop on an amp or
when adding delay to a full mix.
Delay Line Special Functions
LOWER BUTTON
SHORT PRESS turns on REVERSE
LONG PRESS turns on DUCK