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Key Features
The Z.Vex Tremorama is an 8-stage sequencer-controlled tremolo pedal. It's a newer version of the Z.Vex Seek Trem with a random switch which is really effective. The controls are, from left to right, 4/8/6 step selector switch, speed (tempo), and 8 sequencer volume controls. All of the controls work in the opposite direction because the pots are smoother this way. This means you have to turn them to the left to make them louder, or in the case of the speed control, to make it faster.
Product Ref: 24369
Plug a guitar (or, any effect's output) into the right hand input jack. Plug the output into an amp or other effect's input. If the LEDs are not blinking, the pedal is bypassed. When bypassed, it sits and waits at sequencer step number 1 until you turn it on... then it starts in time at the present tempo and steps through each volume setting in series.
In this way you can set up a sequence of different guitar volumes that create a rhythmic pattern which matches your performance or a series of volumes that sound like a swell or even echoes. For example, to create an echo-like setting, turn on the Tremorama and set the "spd" knob to a reasonable tempo and turn all of the sequencer knobs fully clockwise except for the first one.