Alexander Pedals Colour Theory Tremolo/Vibrato

The Colour Theory combines a versatile eight-step sequencer with a powerful effects processor, creating rhythmic combinations seldom heard outside of a rack of synths. It’s small but mighty, utilizing Neo Series technology in a completely new way.
The Colour Theory allows you to preset different values for its effects - each step of the sequence may be set to any values you like, so as the sequence plays the effect changes automatically. You can set the Colour Theory to play a series of tones in OSC mode, or to open and close a filter in FLT mode. The only limit is your own imagination.