Based on the renowned Tap-A-Whirl, the Cusack Tremolo AME Pedal Silver (Amplitude Modulation Effect) offers a unique tremolo effect with nearly limitless tweaking options in a scaled down version that is packed with versatile, easy to use settings. Amazing, distinctive tone with an incredible array of options. Change your waveform to a sine, square and square ramp with the easy to use toggle. The Cusack Tremolo AME Pedal Silver knocks it out of the park. We love the clean silver look too!