What do the dip switches on the back of the Ditto X4 do?
Switch 1 changes the default Record – Play – Overdub order to Record – Overdub – Play.
Switch 2 changes the default overdub mode from being instant to starting at the end of your loop cycle.
Switch 3 lets you switch between your loops instantly or at the end of a loop cycle in serial mode.
Switch 4 changes the looper from true bypass to buffered bypass.