dbx AFS224 Quickstart Guide - Manual (Page 2)

1. Go into the Setup mode by pressing and holding the channel 1 MODE button.
2. Hold this MODE button until the filter LEDs flash all the way across.
3. The Mode buttons should be lit a yellow or amber color. If they are not press each
MODE button until they are both yellow. The filter LEDs will indicate how many
total filters will be active.