The DV Mark Evo 1 Controller is the footswitch with 5 buttons specially designed for the EVO 1 Modeling Top. Two separate footswitches for Channel 1 and 2 are responsible for channel selection, while both effect loops of EVO 1 can be activated separately using FX1 and FX2. The Boost On/Off switch also switches the mute/tuner function as soon as it is pressed and held.