Empress Effects Tremolo2 - Manual (Page 4)

Tap Tempo Mode
In tap tempo mode, use the "tap|preset" stompswitch to enter a
speed for the tremolo. The tremolo will change to the new speed
after 2 taps and will average the speed of the last 4 tap times. Use
the ratio knob to change the ratio of tapped tempo to tremolo
tempo. Available ratios are 1:1, 3:4, 1:2, 1:3, and 1:4.
Knob Mode
In knob mode, use the rate knob to set the speed of the tremolo.
Hold down the "tap|preset" stompswitch as a brake that will slow
down the tremolo speed while the stompswitch is held.
Preset Mode
Preset mode allows you to save and recall presets. All settings of
the pedal are saved in a preset including tempo, front panel
controls and expression pedal assignment. Each preset is
represented by a different color in the "tap|preset" LED.